LibertyBell

4 hours ago, donsutherland1 said:

With JFK Airport's having reached 90° for the seventh time this month and New York City (Central Park) having a high of 89° so far, JFK Airport could wind up with four more 90° or above highs than Central Park this month. That would tie the largest difference when JFK had more 90° highs. The record was set in June 2010 when JFK had eight such days while Central Park had four.

2010 was perfect beginning to end

1 hour ago, MJO812 said:

Im about to get hit with some storms here in the Poconos.

what are you doing out there and in which part, Ant?

3 hours ago, TheClimateChanger said:

Looks like those were mostly urban heat island driven heat waves. Much cooler in the 'burbs and sticks back then.

They were Sonoran heat releases directly out of the southwest LOL

The high was 92 here around 1 PM and then the sea breeze came in and now down to 87 even though it's mostly sunny.

11 minutes ago, Stormlover74 said:

Another overperforming day. 91 currently 

dry ground and an offshore flow is great for days like this

4 hours ago, SACRUS said:

 

 

Looking great overall

7/2- 7/3 : warm - hot some storms mainly at night
7/4 : Gorgeous day clear - drier NW flow  80s / some 70s
7/5 - 7/6 : Hotter / humid

Thanks Tony, this is truly epic BBQ weather!! Even some natural fireworks at night pre July 4th!!

15 hours ago, donsutherland1 said:

I ran the numbers for June 24 using both regression equations: Pre-2000: 101.9; 2000-Present: 99.5; there's little doubt that absent the dense tree cover that was largely not present prior to 2000, Central Park would have surpassed 100° on June 24. Below are the predicted vs. actual highs for Central Park during June 22-25, 2025.

wow my 102 guess for June 24 was correct.... I just saw your very excellent post, Don.  I've always wondered if we could do temperature corrections like this.

I'm guessing Central Park should have reached 90 yesterday too?

It just hit 91 here Don, I'm guessing Central Park is a bit behind again today?

34 minutes ago, donsutherland1 said:

Prior to June 2025, June 2019 (2 days at Islip and 1 day at New York City-Central Park) was the only such June.  2006 is currently the only year when Islip had more 90° days than Central Park (10 vs. 8).

It just hit 91 here Don, I'm guessing Central Park is a bit behind again today?

5 hours ago, bluewave said:

Measuring the temperatures under a mature stand of trees will always be 3° to 5° cooler than in a grassy clearing on sunny and warm days.

NYC was usually pretty close to the surrounding sites like Newark from 1936 to 1980. This is when the thermometer wasn’t underneath trees.  Some heatwaves NYC was warmer than Newark. Many of the 100°+ readings from that era would have only been 98°-99°with a similar sitting to what NYC has seen since the increased tree growth in the last 10 years. 

Tree growth was slowly becoming an issue from the 1980s into the early 1990s. Then there was a greater shift in 1995 when the new ASOS was installed. This became much more pronounced since 2014 along with the continuing tree growth. 
 

 

Monthly Data for July 1936 for Upton NY NWS CWA
Click column heading to sort ascending, click again to sort descending.

NJ	PLAINFIELD	COOP	106
NY	NY CITY CENTRAL PARK	WBAN	106
NY	PORT JERVIS	COOP	105
NJ	ELIZABETH	COOP	105
NJ	JERSEY CITY	COOP	105
NJ	LITTLE FALLS	COOP	105
NJ	PATERSON	COOP	105
NJ	CHARLOTTEBURG RESERVOIR	COOP	105
NY	SCARSDALE	COOP	105
NY	BEDFORD HILLS	COOP	105
NJ	NEWARK LIBERTY INTL AP	WBAN	104
NY	FLUSHING	COOP	104
NY	WEST POINT	COOP	104
NY	MOUNT VERNON	COOP	103
NY	HICKSVILLE	COOP	103
NY	CARMEL	COOP	103
CT	WATERBURY ANACONDA	COOP	103
CT	WATERBURY CITY HALL	COOP	103

 

Monthly Data for July 1949 for Upton NY NWS CWA
Click column heading to sort ascending, click again to sort descending.

NJ	NEWARK LIBERTY INTL AP	WBAN	105
NJ	PATERSON	COOP	105
NJ	PLAINFIELD	COOP	104
CT	MOUNT CARMEL	COOP	104
CT	NORWALK	COOP	102
NJ	CANOE BROOK	COOP	102
NY	NY CITY CENTRAL PARK	WBAN	102
NJ	RUTHERFORD	COOP	102
CT	WATERBURY ANACONDA	COOP	102
NY	SCARSDALE	COOP	101
NJ	ELIZABETH	COOP	101
NJ	RIDGEFIELD	COOP	101
CT	WATERBURY CITY HALL	COOP	101
NY	DOBBS FERRY-ARDSLEY	COOP	100
NY	WEST POINT	COOP	100
CT	GREENWICH	COOP	100
CT	BRIDGEPORT	COOP	100
NY	BEDFORD HILLS	COOP	100
NY	WESTCHESTER CO AP	WBAN	100
NY	LAGUARDIA AIRPORT	WBAN	100

 

Monthly Data for September 1953 for Upton NY NWS CWA
Click column heading to sort ascending, click again to sort descending.

NJ	PATERSON	COOP	106
NJ	PLAINFIELD	COOP	105
NJ	ELIZABETH	COOP	105
NJ	NEWARK LIBERTY INTL AP	WBAN	105
NJ	LITTLE FALLS	COOP	105
NY	WEST POINT	COOP	105
NJ	WANAQUE RAYMOND DAM	COOP	104
NY	SUFFERN 2 E	COOP	104
NY	PORT JERVIS	COOP	103
NY	NEW YORK LAUREL HILL	COOP	103
NJ	ESSEX FELLS SERVICE BLDG	COOP	103
NY	NORTHPORT	COOP	103
NY	BEDFORD HILLS	COOP	103
NY	CARMEL	COOP	103
CT	WATERBURY ANACONDA	COOP	103
NY	NY WESTERLEIGH STAT IS	COOP	102
NY	LAGUARDIA AIRPORT	WBAN	102
NY	NY CITY CENTRAL PARK	WBAN	102
NJ	RIDGEFIELD	COOP	102
NY	STEWART FIELD	WBAN	102
NY	WALDEN 2 NE	COOP	102
CT	NORWALK	COOP	102
NY	SCARSDALE	COOP	102
NY	DOBBS FERRY-ARDSLEY	COOP	101
CT	STAMFORD	COOP	101
CT	NORWICH 5 SW	COOP	101
NJ	CHARLOTTEBURG RESERVOIR	COOP	100
NY	OSSINING SING SING	COOP	100
NY	MIDDLETOWN 2 NW	COOP	100
NY	FARMINGDALE 2 NE	COOP	100
CT	DANBURY	COOP	100
NY	WESTCHESTER CO AP	WBAN	100

 

 

Monthly Data for August 1955 for Upton NY NWS CWA
Click column heading to sort ascending, click again to sort descending.

NJ	PLAINFIELD	COOP	103
NJ	ELIZABETH	COOP	103
NJ	PATERSON	COOP	103
NY	HEMPSTEAD MALVERNE	COOP	103
NY	PORT JERVIS	COOP	102
NJ	LITTLE FALLS	COOP	102
NY	NEW YORK FLOYD BENNETT FIELD	WBAN	101
NY	NEW YORK LAUREL HILL	COOP	101
NY	DOBBS FERRY-ARDSLEY	COOP	101
NY	WEST POINT	COOP	101
NY	CARMEL	COOP	101
NJ	JERSEY CITY	COOP	100
NJ	NEWARK LIBERTY INTL AP	WBAN	100
NY	NY WESTERLEIGH STAT IS	COOP	100
NY	LAGUARDIA AIRPORT	WBAN	100
NY	NY CITY CENTRAL PARK	WBAN	100
NJ	RIDGEFIELD	COOP	100
NJ	ESSEX FELLS SERVICE BLDG	COOP	100
NJ	WANAQUE RAYMOND DAM	COOP	100
NY	SUFFERN 2 E	COOP	100
NY	WALDEN 2 NE	COOP	100

 

 

Monthly Data for July 1966 for Upton NY NWS CWA
Click column heading to sort ascending, click again to sort descending.

NY	LAGUARDIA AIRPORT	WBAN	107
NJ	NEWARK LIBERTY INTL AP	WBAN	105
NY	NEW YORK AVE V BROOKLYN	COOP	105
NY	JFK INTERNATIONAL AIRPORT	WBAN	104
NY	ISLIP-LI MACARTHUR AP	WBAN	104
NY	PORT JERVIS	COOP	104
NY	NEW YORK LAUREL HILL	COOP	104
NJ	LITTLE FALLS	COOP	104
NY	WEST POINT	COOP	103
NY	MINEOLA	COOP	103
CT	NORWALK GAS PLANT	COOP	103
NJ	ELIZABETH	COOP	103
NJ	CANOE BROOK	COOP	103
NY	NY CITY CENTRAL PARK	WBAN	103
NJ	ESSEX FELLS SERVICE BLDG	COOP	103
NJ	PATERSON	COOP	103

 

Monthly Data for July 1977 for Upton NY NWS CWA
Click column heading to sort ascending, click again to sort descending.

NY	NEW YORK LAUREL HILL	COOP	104
NY	NY CITY CENTRAL PARK	WBAN	104
NY	DOBBS FERRY-ARDSLEY	COOP	103
NJ	NEWARK LIBERTY INTL AP	WBAN	102
NJ	TETERBORO AIRPORT	WBAN	102
CT	NORWALK GAS PLANT	COOP	102
NJ	ESSEX FELLS SERVICE BLDG	COOP	101
NY	WEST POINT	COOP	101
NY	VANDERBILT MUSEUM	COOP	101
NJ	PLAINFIELD	COOP	100
NJ	CRANFORD	COOP	100
NY	NEW YORK AVE V BROOKLYN	COOP	100
NY	NY WESTERLEIGH STAT IS	COOP	100
NJ	LITTLE FALLS	COOP	100
NY	MARYKNOLL	COOP	100
CT	STAMFORD 5 N	COOP	100
NY	SCARSDALE	COOP	100
CT	NEW HAVEN	COOP	100
CT	MIDDLETOWN 4 W	COOP	100
NJ	CANOE BROOK	COOP	99
NY	LAGUARDIA AIRPORT	WBAN	99
NJ	WANAQUE RAYMOND DAM	COOP	99
NY	SUFFERN	COOP	99
CT	DANBURY	COOP	99
NY	WESTCHESTER CO AP	WBAN	99

 

Monthly Data for July 1980 for Upton NY NWS CWA
Click column heading to sort ascending, click again to sort descending.

NY	DOBBS FERRY-ARDSLEY	COOP	104
NY	NEW YORK LAUREL HILL	COOP	104
NJ	PLAINFIELD	COOP	102
NJ	CRANFORD	COOP	102
NY	NY WESTERLEIGH STAT IS	COOP	102
NY	NY CITY CENTRAL PARK	WBAN	102
NJ	LODI	COOP	102
NJ	TETERBORO AIRPORT	WBAN	102
NJ	WANAQUE RAYMOND DAM	COOP	101
NJ	NEWARK LIBERTY INTL AP	WBAN	101
NY	NEW YORK AVE V BROOKLYN	COOP	101
NJ	ESSEX FELLS SERVICE BLDG	COOP	101
NJ	LITTLE FALLS	COOP	101
CT	NORWALK GAS PLANT	COOP	101
NY	SCARSDALE	COOP	101
NY	WEST POINT	COOP	100
NJ	CANOE BROOK	COOP	100
CT	NEW HAVEN	COOP	100
CT	NORWICH PUBLIC UTILITY PLANT	COOP	100
NY	LAGUARDIA AIRPORT	WBAN	99

You posted the records from all my favorite heatwaves Chris-- THANK YOU!!!

The only ones you left out were July 1983, August 1983, September 1983 (three from that historic summer lol), July 1993, July 1999, July 2010 and July 2011.

More recent but a fair comparison my friend.

By the way no way no how Central Park did not hit 100 degrees for their earliest triple digit reading last week.

Based on the fact that Central Park is usually hotter than LGA when on a NW wind (or should be), I'd estimate they should have been 102 on that day (the same as JFK) and should have also hit 102 on the day after (the same as JFK again).

Something is really vexing me though.  Our local TV mets are proclaiming the Central Park temperatures to be valid and even claiming verification based on them.  WABC's prediction for 6/24/2025 was 98 degrees and when the Central Park high was 99 they proclaimed they were correct in that New York City would be close but not hit 100 degrees.  Likewise when Central Park only hit 89 yesterday they said they were correct again (their prediction was 88 degrees) when they said New York City would be close but not hit 90.  They treated LGA and JFK like outlier suburban stations (JFK is too far south that's why it's hotter, LGA is north of us and likely influenced by hotter inland air from the lower hudson valley is what they said.)

1 minute ago, winterwx21 said:

Me too. It has gotten to the point that we could use some rain again. I had to give the garden a good watering yesterday. I know we have a pretty good chance of storms tomorrow, but I'm hoping the models are right about a round of rain happening overnight tonight. 

I was hoping the dry conditions would kill off the lanternflies =\

Usually the drier it is the less pests/bugs we have.

3 hours ago, SACRUS said:

 

Records:

Highs:

EWR: 103 (2021)
NYC: 99 (1964)
LGA: 100 (2021)
JFK: 99 (1964)


Lows:

EWR: 55 (1940)
NYC: 53 (1914)
LA: 57 (1996)
JFK: 56 (1988)


Historical: 

 

 

1816: The mean temperature for June 1816 in Philadelphia, PA was a record breaking 64°F (p.33 Washington Weather Book 2002 by Ambrose, Henry, Weiss)

1841: A tornado hit Danvers, Salem, and Marblehead, MA. During this severe weather event, small fish fell on a street in Boston.
(Ref. Wilson Wx. History)
 

1886 - The second destructive hurricane in nine days hit the Apalachicola-Tallahassee area. (David Ludlum)

1900: The combination of high winds and the presence of wooded fuel-filled cargo helped to spread fire on the Hoboken Docks in New Jersey. The fire began when cotton bales caught fire and spread to nearby volatile liquids. The fire killed at least 300 people and was seen in New York City. 

1901
Maximum temperature greater than 85° in Washington, DC from June 21st until July 7th, and greater than 90°F from 25th to 4th and 98° on 30th.
(Ref. Washington Weather Records - KDCA)

1908: A huge fireball streaked across the sky during the early morning hours over Siberia. A huge explosion occurred in the air near the remote Stony Tunguska River. The explosion flattened trees for 40 miles around and killed wildlife, but no crater or meteorite fragments were ever found. (Ref. Wilson Wx. History)

1930: The Great Drought of 1930-1931 the year of 1930 was the driest year since the drought of 1869 to 1870. The drought caused $40 million dollars (1930 dollars) in losses to farmers in Maryland alone. Forest fires by the dry spell caused $580,000 in losses in Maryland. The precipitation deficit began in December 1929 and was fully classified as a drought by May of 1930. An extreme dry period set in from the end of June 1930 and continued through February 1931. During the 15-month period from December 1929 through February 1931, most places saw 60 percent or less of their normal rainfall. The average precipitation across Maryland and Delaware was 29.58 inches, which was 21.51 inches below normal. Baltimore recorded 27.31 inches for the 15-month period that was 23.03 inches below normal or 54% or normal. Washington, DC recorded 26.78 inches, which was 20.40 inches below normal or 57% below normal. The drought of 1998 to 1999 did not come near this severity, but it was the second severest drought of this century. The Palmer index, which is used to signal drought severity, classifies values of -3 to -4 as "severe drought" and values at -4 or less as "extreme drought". The Palmer Index for the region reached its lowest values during the end of the extreme dry period. In Maryland, west of the bay, Northern Virginia and the eastern panhandle of West Virginia, the Palmer Index was between -6.5 and -7.5 for January and February. Areas experienced up to 17   months of extreme drought conditions. The drought moderated some after February 1931 with periodic rains and showers through the summer months that helped the crops. However, these rains were not enough to restore the water table and water flow levels. Officially the drought did not end until about May 1932.
 

1942 - The temperature at Portland, OR, hit 102 degrees, an all-time record for that location. (The Weather Channel)

1949: Only 0.02 inches of rain fell at Central Park in New York City for its driest month on record. (Ref. Wilson Wx. History)

1968: A cloudy June came to an end in Sault Ste. Marie, MI. Not one clear day was observed during the month. (Ref. Wilson Wx. History)

1972: The entire state of Pennsylvania was declared a disaster area as a result of the catastrophic flooding caused by Hurricane Agnes, which claimed 48 lives, and caused 2.1 billion dollars damage. (The Weather Channel)

 

1972 - The entire state of Pennsylvania was declared a disaster area as a result of the catastrophic flooding caused by Hurricane Agnes, which claimed 48 lives, and caused 2.1 billion dollars damage. (The Weather Channel)

1978: Havre, MT measured a wind gust to 138 mph from a severe thunderstorm. (Ref. Wilson Wx. History)

1986: Thunderstorms produced large hail and high winds in southwest South Dakota. During the afternoon hours hail up to the size of baseballs pounded Ellsworth Air Force base near Rapid City. 20 people were hurt at the Air Force Base as the hail broke over one thousand windows. Hail was 3 to 6 inches deep on the roads in Spearfish Canyon in the Black Hills and snowplows needed to be called out to clear the roads.

1986: Today marked the end of the driest six months on record for the Athens, GA area since records began in 1845. The six month precipitation total at Athens was 11.23 inches compared to the normal of 27.33 inches. This also marked the end of the driest six months on record for Lynchburg, VA, with only 9.43 inches measured. Where as San Antonio, TX had their wettest June on record with 11.95 inches of rain besting the previous record of 10.44 inches set back in 1973. (Ref. Wilson Wx. History)

1987 - Hot weather prevailed in the Pacific Northwest, with readings above 100 degrees reported as far north as southern British Columbia. Yakima, WA, reported a record high of 100 degrees, while temperatures near the Washington coast hovered near 60 degrees all day. Thunderstorms prevailed from southwest Texas to New England. Thunderstorm winds gusting to 100 mph at Gettysburg, PA, killed one person. High winds and large hail caused more than five million dollars damage to property and crops in Lancaster County, PA. (The National Weather Summary) (Storm Data)

1988 - Thunderstorms in eastern Kansas drenched Worden with 12.21 inches of rain, and a wall of water two to four feet deep swept through Lone Star, KS, flooding every home in the town. Up to ten inches of rain was reported southeast of Callaway, NE. Thunderstorm winds gusted to 75 mph at Winfield, KS. Seventeen cities in the north central and northeastern U.S. reported record low temperatures for the date, including Duluth, MN, with a reading of 36 degrees. (The National Weather Summary) (Storm Data)

1989 - Winnfield, LA, reported 22.52 inches of rain in three days, and more than thirty inches for the month, a record for June. Shreveport LA received a record 17.11 inches in June, with a total for the first six months of the year of 45.55 inches. Thunderstorms also helped produce record rainfall totals for the month of June of 13.12 inches at Birmingham AL, 14.66 inches at Oklahoma City, OK, 17.41 inches at Tallahassee FL, 9.97 inches at Lynchburg, VA, and more than 10.25 inches at Pittsburgh, PA. Pittsburgh had also experienced a record wet month of May. (The National Weather Summary)

1991: Five inch diameter hailstones bombarded a spot near the town of Hathaway, MT. (Ref. Wilson Wx. History)

1992: 399 tornadoes occurred across the U.S. during June. This set a new record for the greatest number of tornadoes in a single month up to that time (this record was broken in May 2003). (Ref. Wilson Wx. History)

1993: Across parts of South Dakota, June of 1993 was a cool and wet month. In Iowa, temperatures averaged nearly three degrees below normal while precipitation averaged 8.09 inches, which is 3.67 inches above normal. Le Mars was one of only two stations which recorded below normal rainfall for June of 1993, but still received 3.09 inches. Not too far away though, Estherville recorded its wettest month on record with an astounding 13.49 inches.

1993: Mississippi River levels rose dramatically during the last half of the month. On the Upper Mississippi River basin near the Quad Cities, river levels rose above major flood levels which occurred in 1965 and 1973.
(Ref. Wilson Wx. History)

1994: El Paso, TX soared to 114° to break their all-time record high temperature, again. A record high of 113° was just set on the 27th and 28th of this month. (Extreme Weather p. 277, by Christopher C. Burt - The 1981 record) (Ref. Wilson Wx. History)

1999: Mount Baker, Washington closed out a record snowfall season both for the United States and the verifiable world record as the seasonal total from July 1, 1998, to June 30, 1999, finished with 1,140 inches.

2001: A severe thunderstorm at 1 AM produced baseball size hail and 80 mph winds at Ashland, MT. The storm had tops up to 70,000 feet. There were many smashed windows and windshields and birds killed. (Ref. Wilson Wx. History)

2003: Tropical Storm Bill added to the second wettest June ever at New Orleans, LA by dropping over 4.50 inches of rain, bringing the monthly total to 17.37 inches. This was just shy of the all-time wettest June ever, which occurred in 2001, when 17.62 inches fell.
New York City, NY closed out the month with a record amount of rain for any June as 10.27 inches fell, nearly three times the normal monthly amount of 3.84 inches.  (Ref. Wilson Wx. History)

2005: June had 13 days with 90°F or above temperatures which ties the old record set in 1994. (Ref. Annandale Weather Records - KRIC)

2005: Lightning injured five campers at Loft Mountain Campsite in the Shenandoah National Park (Albemarle County). (Ref. Lightning - Virginia Weather History)

2005: A derecho produced 80 mph winds and damaged several homes/structures in S Crawford County (KS). 2 women were hurt as winds destroyed a mobile home between McCune and Cherokee. One of the women was critically injured when “scalped” by flying debris. (Ref. Weather Guide Calendar with Phenomenal Weather Events 2011 Accord Pub. 2010, USA)

2010: The hottest June on Record! The Richmond International Airport reported the mean temperature for June was 81.1 °F which was a new 113 year record. This breaks the old record of 79.2 °F set in 1943 and was a +8.7 °F departure from average. June had 8 new daily temperature records and all were for heat. Both June 27th and 28th had a maximum temperature 102 °F. Richmond has never had back to back 102 °F days before in June. Only three June days have been hotter: (June 30, 1937 103 °F) (June 19, 1944 103 °F) (June 26, 1952 104 °F ) June 2010 also had 19 days of 90 °F or higher temperatures the record was 20 in 1943. June had only 0.82 inches rainfall making it the second driest in 113 years only 1980 was drier with only 0.38 inches and with the heat made severe drought conditions. (Ref. Richmond Weather Records - KRIC)

2010: Both Philadelphia, Pennsylvania, and Washington, D.C. recorded their hottest Junes, with the thermometer in Philadelphia averaging 5.9°F above normal for the month. Miami, Florida notched not just its hottest June, but its hottest month on record.
(Ref. Weatherwise U.S. Weather Highlights of 2010 page 8 )

2011: Chicago got hammered with 2-inch hail (that damaged cars/police cars) and up to 800 lightning strikes in 10 minutes! This storm caused 94 mph in a harbor on Lake Michigan just north of the city and a funnel cloud was spotted.(Ref. Images by John Koontz) (Ref. Amazing You-Tube Video of a Very Close Lightning Strike) (Ref. NWS Tells the Complete Story in a 5 Min. Movie)

2015: The heat was a big story for us throughout the month of June. It may come as no surprise then that this was one of the warmest Junes on record in Richmond. Our average temperature was 77.92° for the month. That was high enough to place June 2015 as the 8th warmest June in Richmond since record-keeping began in 1880. Richmond International Airport normal average temperature is 74.3°F. Richmond's (Ref. NWS Wakefield)

2010: The hottest June on Record! The Richmond International Airport reported the mean temperature for June was 81.1 °F which was a new 113 year record. This breaks the old record of 79.2 °F set in 1943 and was a +8.7 °F departure from average. June had 8 new daily temperature records and all were for heat. Both June 27th and 28th had a maximum temperature 102 °F. Richmond has never had back to back 102 °F days before in June. Only three June days have been hotter: (June 30, 1937 103 °F) (June 19, 1944 103 °F) (June 26, 1952 104 °F ) June 2010 also had 19 days of 90 °F or higher temperatures the record was 20 in 1943. June had only 0.82 inches rainfall making it the second driest in 113 years only 1980 was drier with only 0.38 inches and with the heat made severe drought conditions. (Ref. Richmond Weather Records - KRIC)

2010: Both Philadelphia, Pennsylvania, and Washington, D.C. recorded their hottest Junes, with the thermometer in Philadelphia averaging 5.9°F above normal for the month. Miami, Florida notched not just its hottest June, but its hottest month on record.
(Ref. Weatherwise U.S. Weather Highlights of 2010 page 8 )

Summer 2010 was to summer what 1995-96 was to winter!!

1 hour ago, TheClimateChanger said:

This is a good point. I remember in the 1990s, we had "triple H" weather - hazy, hot and humid, as though haze were a byproduct of hot and humid weather rather than a noxious soup of industrial chemicals. It was common for airport visibility to be 5-7 miles in heat domes, sometimes even 3-5 miles. Compared to today's atmosphere, you don't see such things. In fact, it used to be northwest flow would bring in clean, crisp, unpolluted air from the hinterlands. Now it brings in toxic wildfire smoke and particulates. So more often than not, we wind up with hazy, cool and dry weather, instead of the opposite.

the haze and breathing problems are also a product of car fuel exhaust (NO2 air pollution), which lowers life expectancy by 2 years or so and increases asthma rates and genetic mutations.

25 minutes ago, Roger Smith said:

The historical highlights missed the biggest event on this date, namely the peak of the Pacific NW - BC heat dome in 2021.

On June 30, 2021 it was 44 C (112 F) here, breaking our all-time record by probably five degrees. It was 49 C (120 F) at Lytton BC, a hotspot every summer but in this case, it burned to the ground at 5 p.m. due to a train spark induced brush fire fanned by the hot up-valley winds. The town (formerly home to 1,200 people) remains largely in ruins now as local governments wrangle about who will pay what to rebuild it, and native groups request careful handling of possible archaeological remnants. Most of the buildings were reduced to ground slabs and scattered debris, if you went in there now it would look like any other ghost town, but its population want to restore it. 

I don't have the U.S. numbers handy but I'm pretty sure the peak of the heat wave was on June 28th to July 1st at all recording sites. (later edit, 116F at Portland on June 28, and 108F at SEA-TAC ... 117 F at Pendleton and Omak on June 29 and 116F in Spokane) ... There were hundreds of heat prostration deaths in the region. Various locations in BC, WA and OR got well above 110 F, coming close to all-time records if not breaking them (1898 had some of those, 1941 had others). Looks like the severe heat broke down on the coast by the 29th but remained inland to July 1-2, I recall it sort of fizzled out gradually in the first week of July and then the severe smoke episode began later in July as fires began to spread through BC and WA. 

We were under 594 dm thickness here for several days, so this was just like the heat they get routinely in Las Vegas and Phoenix, and it felt the same, heat radiating into your face but no cooling sprays along the sidewalks like they have in Vegas (I managed to hit Las Vegas for their August record high of 118 F in 2011, just on my way to much less torrid places higher up in southern Utah but that heat wave was very similar to the heat dome, only where it was supposed to be).

Didn't a city or town get completely burned down in that intense heat?

15 hours ago, Sundog said:

Feb 2006. But yea I remember when they adjusted January 2016 to be above that storm and become number 1. 

Feb 2006 was uber fluff anyway and that 26.9 inches was snowboard derived plus ultra local, I had closer to 20. 

January 2016 had 30 inches DEPTH and over a very large area, it was BS for that storm to not be number 1. 

Yes MY ONLY 30 INCH SNOWSTORM EVER AND PROBABLY WON'T SEE ANOTHER ONE.

I can't even think of another snowstorm that could possible dump 30 inches in a straight line from Allentown to Oceanside lol.

The only thing that was remotely similar to that was February 1983 (both in very strong el ninos) that dumped 26 inches in Allentown and 22 inches at JFK.

That 30 inches on 3 inches of liquid was juiced by CC extra moisture.

Just now, Sundog said:

As far as I'm concerned it was broken, I don't have to pretend that Central Park is accurate. 

I really wish there was a way to adjust the numbers like they did for the January 2016 snowstorm.

Remember when they did that? It was originally slightly behind January 2006 and then adjusted upward later.

There is a scientific way of doing this using nearby stations.

2 minutes ago, donsutherland1 said:

I reran the numbers, as the final data showed highs of 91 at ISP, 92 at JFK, 91 at LGA, and 95 at EWR to go with NYC's 89.

It's hard to believe Central Park being 5 degrees cooler than me but here we are.

I'll also note that even when we went completely overcast here for an hour I was still 3 degrees hotter than Central Park's highest temperature of the day!

1 minute ago, LibertyBell said:

So was that 99 last week.  To go along with the 99 in July 2013 which also should have been 100+.

That 99 last week was extremely significant.  Central Park lost out on its earliest 100 ever recorded there.

3 minutes ago, Sundog said:

That 89 is really something it's like the station is trolling us

So was that 99 last week.  To go along with the 99 in July 2013 which also should have been 100+.

1 minute ago, Sundog said:

I'm in favor of anything that will bring the average global temperature down. 

People say you can't run a global experiment like that without knowing the outcome. 

Oh but running a fossil fuel driven global experiment is no problem? We're already doing something bad, might as well mitigate the effects!

Yep we're already running a global experiment lol.

If you look back at the 80s, even though we didn't get a lot of big snowstorms, we did get extremely cold the likes of which we just don't see anymore.  Just look at all these below zero arctic outbreaks:

Christmas 1980

January 1982

December 1983

January 1985

and there was one of our coldest Decembers on record December 1989

Not a lot of snow but definitely plenty of cold.

Just now, SACRUS said:

 

Highs:

 

EWR: 95
ACY: 95
New Brnswck: 92
TEB: 92
JFK: 92
PHL: 93
ISP: 91
TTN: 91
LGA: 91
BLM: 90

NYC: 89

89, so did sneak in an extra degree in between hours Tony?

KMJX was also 95 today.

18 minutes ago, donsutherland1 said:

Today, Newark topped out at 95°. Central Park hit 88°. Prior to 2000, Central Park failed to reach 90° or above on just 0.4% of the days that Newark hit 95° or above. Since 2000, that figure has increased nearly 16-fold to 5.5%.

For June, I constructed regression equations for the pre-2000 and 2000-present periods. The independent variables were ISP, JFK, LGA, and EWR. The dependent variable was NYC.

Based on today's 90, 92, 90, and 95 highs at ISP, JFK, LGA, and EWR, the pre-2000 equation suggested a high of 92.96 at Central Park (95% CIE: 90.1-95.8). The 2000-present equation suggested a high of 92.06 at Central Park (95% (CIE: 88.5-91.6). The difference in the estimates suggests that Central Park's highs are 2.9° cooler relative to surrounding locations in the 2000-2024 period. The coefficients of determination were 0.86 and 0.95 respectively. Given the high coefficients of determination for both cases, one can have strong confidence that today's highs are notably cooler relative to those at surrounding sites than they would have been prior to 2000.

There's not even any rain to keep the park wet, it has to be all about shade.  JFK hit 92, I hit 94, it was a legit hot day, no reason for Central Park to be 88.

2 hours ago, Sundog said:

The event is extremely unlikely but not impossible. 

Plus early 80s was peak aerosol pollution, we had capped climate change through air pollution. Then there is also natural variability. 

 

 

That's why the idea of putting more aerosols into the stratosphere has some merit.

39 minutes ago, bluewave said:

That still remains one of my all-time favorite snowstorms. Probably the most electrified blizzard. The record cold and snow in April 1982 would have been impressive in the 1880s or 1780s. 

The only comparable snowstorms I can think of occurred in the 1870s.  I wonder what caused that snowstorm and cold so many decades after the planet had already started to warm?

34 minutes ago, Rjay said:

Another NW wind day with a late afternoon 90 here.  91 currently  

Yes the perfect day with a one hour interruption with clouds

Got to 94 here at 2 pm just before the clouds

23 minutes ago, SACRUS said:

 

92 / 68

It's completely overcast Tony, where did all these clouds come from?