June 2025 discussion-obs: Summerlike

[MJO812]

Getting cloudy here. Feeling cooler already .

[gravitylover]

A little rain this morning was nice. Cool, cloudy and windy feels good after the last few days.

[Brian5671]

nice north winds blowing after a brief downpour around 5am.   68 here

[LibertyBell]

1 hour ago, bluewave said:

This was the strongest heatwave in our area that was ever recorded during the month of June. We had widespread 103° readings from NJ to Baiting Holllow on Eastern Long Island with multiple 105° readings in Queens. This may be the first 103° ever recorded on Eastern Long Island.

So the list below is all the 103°+heatwaves since 1936 and the month which they occurred. There hasn’t been multiple 103°+ heatwaves in the same season before. I know that you really enjoy this type of heat. But I am hoping that this follows past examples and is the warmest we see for all of 2025.

The other thing on the list below is how these heatwaves have become earlier in the season. We haven’t one in August since 2006 and September since 1953.

103°+ heatwaves since 1936 and local maximum temperatures 

June 2025…..105°

June 2021…..103°

July 2012……104°

July 2011……108°

July 2010…..108°

August 2006…103°

July 2005….103°

August 2001….105°

July 1999…..104°

July 1995…..104°

July 1993…..105°

July 1977……104°

July 1966….107°

August 1955….103°

September 1953…..105°

July 1949…..105°

July 1948…..103°

July 1936….106°

I don't mind, I just wanted to get 1 or 2 100+ days and it happened.  I don't think it will get this extreme again later either.  The only other year I can recall multiple 100+ heatwaves in NYC was in 1966, when NYC hit 101 in June and 103 in July.  But this heatwave exceeded the June 1966 heatwave even though NYC did not hit 100+ this time because the 100+ coverage was far greater.  JFK has never had multiple heatwaves of 101+ (that I can remember anyway).  And we hit 102 twice in this one!!  The closest summer I can recall which had multiple triple digit outbreaks  at JFK was 1983, in which it hit 100 in July and 100 in August (NYC did not hit 100 either time) and then 99 in September.  Was that the only year you can recall that JFK had multiple 100+ heatwaves too? I think there might have been another one much earlier in its history (1948 maybe?)

 

[LibertyBell]

1 hour ago, donsutherland1 said:

All the sites held onto their 80 or above lows yesterday.

Yes it didn't get comfortable until this morning, but it finally feels much better this morning.

[LibertyBell]

1 hour ago, SACRUS said:

 

Records:

Highs:

EWR: 102 (1952)
NYC: 100 (1952)
LGA: 101 (1952)
JFK: 99 (1949)


Lows:

EWR: 55 (1986)
NYC: 56 (1979)
LGA: 56 (1985)
JFK: 54 (1986)

Historical:

 

1888 - Residents of New York suffered through a record heat wave. Daily average temperatures were above 80 degrees for fourteen straight days. The heat wave was a sharp contrast to the severe blizzard in March of that year, which buried the city under nearly two feet of snow. (David Ludlum)

 

1930: Lightning struck the John B. King drillship in the St. Lawrence River, igniting a storage of dynamite onboard. The resulting explosion killed 30 people and injured 11 others. (Ref. Wilson Wx. History)

1931: Anchorage, Alaska: The temperature soars to 92 °F, their hottest reading of record to date.(Ref. WxDoctor)(David Ludlum)

1952: Record Maximum temperature for Richmond International Airport for the date and for June is 104 °F. (Ref. Richmond Weather Records - KRIC)

1952: Boston, MA recorded its highest temperature of 100 °F for June. (Ref. NOAA Boston Weather Events)

1954: Under calm winds and a bright sunny sky a killer wave rose suddenly from a placid Lake Michigan sweeping 8 unsuspecting fishermen off a breakwater to their deaths. The water level at Montrose Harbor surged more than 10 feet within a few minutes. The “seiche” was caused by an earlier squall on the lake. (Ref. Wilson Wx. History)

1957: Residents of Cameron, LA went to bed believing that they had plenty of time to evacuate the following morning in advance of what was then Category 2 Hurricane Audrey. Official bulletins from the U.S. Weather Bureau stated that the storm would not come ashore until late the next day. They would be very surprised the next morning to find water covering much of their parish as a 12 foot storm surge was already impacting the area and the center was just offshore. Also, Audrey had intensified rapidly during the night, with the central pressure dropping 35 millibars from the last reconnaissance fix during the day. Winds correspondingly increased to 145 mph and the storm surge rose from an expected 5 to 8 feet to a devastating 12 feet and higher. Additionally, the forward movement of the hurricane increased from 6 to 15 mph, and as residents were told that the hurricane would not strike until the following afternoon. 390 people died and another 192 were missing.

1957: The high temperature at Palm Springs, CA hit 121°; tying their highest temperature set on 6/24 & 6/29/1994. (Ref. Wilson Wx. History)

1961: This was the 10th consecutive day of temperatures in Las Vegas, NV reaching 110° or hotter making this the longest on record.(Ref. Wilson Wx. History)

1977 - The Human Lightning Conductor, park ranger Roy C. Sullivan, was struck by lightning for the seventh time. He was first hit in 1942, then again in 1970, 1972, 1973 and 1976. (The Weather Channel)

1979: Temperature failed to reach 90° in Washington, DC. during first 6 months of 1979 this hasn't happen since 1886.(Ref. Washington Weather Records - KDCA)

1980: Severe storms in South Dakota with winds over 60 mph were reported in at least 10 separate counties. The hardest hit area was Mitchell where 100 mph winds slammed into the city wiping out trees, blowing out windows, and damaging the airport. Damage in Mitchell alone exceeded $200,000 dollars. Several locations across the Plains endured record breaking heat including: Dallas (DFW), TX: 113°, Wichita Falls, TX: 113°, Dallas (Love Field), TX: 112°, Wichita, KS: 109°, Waco, TX: 107°, Grand Junction, CO: 106, Houston, TX: 102°, San Antonio, TX: 102°, North Platte, NE: 101°, Corpus Christi: 100° andVictoria, TX: 100°.(Ref. Wilson Wx. History)

1983 - Record heat prevailed from Texas to Michigan. Alpena MI hit 98 degrees. (Sandra and TI Richard Sanders - 1987)

1985 - A spectacular early morning waterspout developed at 5:20 AM (MST) from a stationary thunderstorm over the south end of the Great Salt Lake in Utah. It was visible 20 miles away, and lasted four minutes. (The Weather Channel)

 

1986: Hurricane Bonnie made landfall on the upper Texas coast. A wind gust to 98 mph occurred at Sea Rim State Park. Ace, Texas recorded a total of 13 inches of rain.

1987 - Hot weather prevailed in the Pacific Northwest. Afternoon highs of 88 degrees at Seattle, WA, 103 degrees at Medford, OR, and 111 degrees at Redding, CA, were records for the date. Cloudy and cool weather prevailed in the northeastern U.S. The high at Boston, MA, was just 60 degrees. (The National Weather Summary)

1988 - Thirteen cities in the southeastern U.S. reported record high temperatures for the date. In Montana, the record high of 102 degrees at Billings, MT, was their fifteenth of the month, and the high of 108 degrees at Glasgow MT equalled their record for June. Thunderstorms in the Atlantic Coast Region produced wind gusts to 102 mph at Tall Timbers MD. (Storm Data) (The National Weather Summary)

1989 - Thunderstorms produced severe weather from the Central Plains to the Middle Mississippi Valley. There were 129 reports of severe weather during the day and night. Thunderstorms in Kansas produced wind gusts to 90 mph at Liberal, and hail four inches in diameter at Quinter. Thunderstorms in Wisconsin spawned a tornado at Lake Delton injuring four persons. Lightning struck and killed a woman at Junction City, KS, who had gotten out of her car to photograph the lightning. (The National Weather Summary) (Storm Data)crossed northern Mexico), began to spread heavy rain into southeast Texas and southwest Louisiana. (The National Weather Summary)

1993: Two miles northwest of Little Sioux, Iowa golf ball size hail completely covered the ground and strong winds caused this hail to drift. The most significant hail damage occurred in Shelby County. Here, a thunderstorm dropped golf ball to softball size hail in a swath about two miles wide and 20 miles long. Baseball size hail covered the ground six miles north of Harlan. Reports of 75% crop destruction were common within this hail swath. (Ref. Wilson Wx. History)

1994: Albuquerque, NM temperature hit 107°, for its hottest temperature ever. The same record was set at Lubbock, TX with 111°. Both Midland and El Paso, TX reached 112°, to both tie their hottest temperatures on record. Daily record highs included: Roswell, NM: 111°, Denver, CO: 104°, Grand Junction, CO: 104 °F. (Ref. Wilson Wx. History)

1998: Severe thunderstorms crossed the Niagara Frontier, the western southern tier and eastern Lake Ontario Region in New York during the early morning hours. The thunderstorms produced large hail and damaging winds which downed trees and power lines. One-inch hail fell in Batavia. Five to six inches of rain fell in a 200 square mile area sending small streams out of their banks causing several million dollars worth of property damage in the Villages of Arcade and Gowanda. Erie, Wyoming and Cattaraugus counties were declared state and federal disaster areas. In Arcade, 37 were rescued from treetops and rooftops by the Water Rescue Team. Over 130 homes were damaged in Arcade. (Ref. Wilson Wx. History)

1999: 15 inches of rain fell, most of it between 9 PM and midnight, over the Schriever, LA area as thunderstorms continuously redeveloped and “trained” over the same areas. Roads were underwater and about 100 homes were damaged.
The most damaging hailstorm to ever strike Cheyenne County, Wyoming occurred. Hail up to baseball size and winds up to 80 mph devastated much of the western part of the county. Damage to property and crops exceeded $26 million dollars. (Ref. Wilson Wx. History)

2002: Phenomenal flash flooding struck Fort Wayne, IN as thunderstorms developed and re-developed directly over the city for several hours during the evening Times Corner reported 8 inches of rain in three hours. Spy Run Creek rose 9 feet in 8 hours to an all-time record level of 12.3 feet. Three inches of rain fell in 90 minutes. (Ref. Wilson Wx. History)

2006: The maximum rain in 24-hour period was 5.61 inches from 5 AM on June 25th to 5 AM of the 26th at Annandale, VA. This was very near the record of 5.66 inches set on October 7th and 8th 2005. (Ref. Annandale Weather Records - KDCA)

2008: In addition to the 3 confirmed tornadoes, multiple reports of large hail were received over Corson and Dewey Counties, including some to the size of baseballs near the communities of McLaughlin and Isabel. The large hail broke out many home and vehicle windows and damaged many roofs in Dewey, Corson, and Sully Counties. Near Sutton Bay on Lake Oahe, where a wind gust of 92 mph was recorded but close to the intersection of Highways 1804 and 175th street several Western Area Power Administration electrical transmission towers were completely collapsed. This is consistent with wind speeds ranging from 130 to 140 mph. Also of great significance during the event was the peak wind speed of 124 mph recorded at the Onida airport. This wind speed is the strongest wind gust ever measured in the Aberdeen County Warning Area and the 4th strongest wind speed ever reported in South Dakota. (Ref. Wilson Wx. History)
 

1983 - Record heat prevailed from Texas to Michigan. Alpena MI hit 98 degrees. (Sandra and TI Richard Sanders - 1987)

 

1983 had such an incredible summer

Today was also the peak of 1952 heat-- but the real summer heat came the following year in 1953.

1952: Record Maximum temperature for Richmond International Airport for the date and for June is 104 °F. (Ref. Richmond Weather Records - KRIC)

1952: Boston, MA recorded its highest temperature of 100 °F for June. (Ref. NOAA Boston Weather Events)

Highs:

EWR: 102 (1952)
NYC: 100 (1952)
LGA: 101 (1952)
JFK: 99 (1949)

[Brian5671]

Nice to turn off the AC and let that nice air come in on a NE wind

[Sundog]

2 minutes ago, Brian5671 said:

Nice to turn off the AC and let that nice air come in on a NE wind

73 here cloudy and breezy, a nice change finally

[bluewave]

15 minutes ago, LibertyBell said:

I don't mind, I just wanted to get 1 or 2 100+ days and it happened.  I don't think it will get this extreme again later either.  The only other year I can recall multiple 100+ heatwaves in NYC was in 1966, when NYC hit 101 in June and 103 in July.  But this heatwave exceeded the June 1966 heatwave even though NYC did not hit 100+ this time because the 100+ coverage was far greater.  JFK has never had multiple heatwaves of 101+ (that I can remember anyway).  And we hit 102 twice in this one!!  The closest summer I can recall which had multiple triple digit outbreaks  at JFK was 1983, in which it hit 100 in July and 100 in August (NYC did not hit 100 either time) and then 99 in September.  Was that the only year you can recall that JFK had multiple 100+ heatwaves too? I think there might have been another one much earlier in its history (1948 maybe?)

 

100°+ days at JFK and 80°+ minimums

Maximum 1-Day Mean Max Temperature 
for JFK INTERNATIONAL AIRPORT, NY
Click column heading to sort ascending, click again to sort descending.

1	104.0	1966-07-03 through 1966-07-03
2	103.0	2011-07-22 through 2011-07-22
3	102.0	2025-06-25 through 2025-06-25
-	102.0	2025-06-24 through 2025-06-24
-	102.0	2011-07-23 through 2011-07-23
-	102.0	1999-07-05 through 1999-07-05
-	102.0	1963-07-01 through 1963-07-01
4	101.0	2010-07-06 through 2010-07-06
-	101.0	2010-07-04 through 2010-07-04
-	101.0	1993-07-09 through 1993-07-09
-	101.0	1966-07-04 through 1966-07-04
-	101.0	1966-07-02 through 1966-07-02
-	101.0	1957-07-22 through 1957-07-22
-	101.0	1948-08-27 through 1948-08-27
5	100.0	2013-07-18 through 2013-07-18
-	100.0	2010-07-07 through 2010-07-07
-	100.0	1993-07-10 through 1993-07-10
-	100.0	1983-08-20 through 1983-08-20
-	100.0	1983-07-16 through 1983-07-16
-	100.0	1972-07-23 through 1972-07-23
-	100.0	1948-08-26 through 1948-08-26

 

Maximum 1-Day Mean Min Temperature 
for JFK INTERNATIONAL AIRPORT, NY
Click column heading to sort ascending, click again to sort descending.

1	82.0	2016-08-14 through 2016-08-14
-	82.0	1999-07-06 through 1999-07-06
3	81.0	2025-06-25 through 2025-06-25
-	81.0	1983-07-16 through 1983-07-16
-	81.0	1980-08-09 through 1980-08-09
-	81.0	1959-06-30 through 1959-06-30
7	80.0	2019-07-21 through 2019-07-21
-	80.0	2016-08-13 through 2016-08-13
-	80.0	2013-07-19 through 2013-07-19
-	80.0	2010-07-24 through 2010-07-24
-	80.0	2006-08-02 through 2006-08-02
-	80.0	2002-07-04 through 2002-07-04
-	80.0	2001-08-08 through 2001-08-08
-	80.0	1999-07-05 through 1999-07-05
-	80.0	1993-07-10 through 1993-07-10
-	80.0	1981-07-09 through 1981-07-09

[LibertyBell]

1 minute ago, bluewave said:

100°+ days at JFK

Maximum 1-Day Mean Max Temperature 
for JFK INTERNATIONAL AIRPORT, NY
Click column heading to sort ascending, click again to sort descending.

1	104.0	1966-07-03 through 1966-07-03
2	103.0	2011-07-22 through 2011-07-22
3	102.0	2025-06-25 through 2025-06-25
-	102.0	2025-06-24 through 2025-06-24
-	102.0	2011-07-23 through 2011-07-23
-	102.0	1999-07-05 through 1999-07-05
-	102.0	1963-07-01 through 1963-07-01
4	101.0	2010-07-06 through 2010-07-06
-	101.0	2010-07-04 through 2010-07-04
-	101.0	1993-07-09 through 1993-07-09
-	101.0	1966-07-04 through 1966-07-04
-	101.0	1966-07-02 through 1966-07-02
-	101.0	1957-07-22 through 1957-07-22
-	101.0	1948-08-27 through 1948-08-27
5	100.0	2013-07-18 through 2013-07-18
-	100.0	2010-07-07 through 2010-07-07
-	100.0	1993-07-10 through 1993-07-10
-	100.0	1983-08-20 through 1983-08-20
-	100.0	1983-07-16 through 1983-07-16
-	100.0	1972-07-23 through 1972-07-23
-	100.0	1948-08-26 through 1948-08-26

1966 was the only time it happened three days in a row (2010 was close with 3 days out of 4).

[LibertyBell]

3 minutes ago, bluewave said:

100°+ days at JFK

Maximum 1-Day Mean Max Temperature 
for JFK INTERNATIONAL AIRPORT, NY
Click column heading to sort ascending, click again to sort descending.

1	104.0	1966-07-03 through 1966-07-03
2	103.0	2011-07-22 through 2011-07-22
3	102.0	2025-06-25 through 2025-06-25
-	102.0	2025-06-24 through 2025-06-24
-	102.0	2011-07-23 through 2011-07-23
-	102.0	1999-07-05 through 1999-07-05
-	102.0	1963-07-01 through 1963-07-01
4	101.0	2010-07-06 through 2010-07-06
-	101.0	2010-07-04 through 2010-07-04
-	101.0	1993-07-09 through 1993-07-09
-	101.0	1966-07-04 through 1966-07-04
-	101.0	1966-07-02 through 1966-07-02
-	101.0	1957-07-22 through 1957-07-22
-	101.0	1948-08-27 through 1948-08-27
5	100.0	2013-07-18 through 2013-07-18
-	100.0	2010-07-07 through 2010-07-07
-	100.0	1993-07-10 through 1993-07-10
-	100.0	1983-08-20 through 1983-08-20
-	100.0	1983-07-16 through 1983-07-16
-	100.0	1972-07-23 through 1972-07-23
-	100.0	1948-08-26 through 1948-08-26

So 1983 was the only time that JFK had multiple 2 separate heatwaves that peaked at 100+

I think NYC had two such heatwaves in both 1948 and 1966. Also in 1953 which had 4 total 100+ days at NYC evenly split between two heatwaves.

[Sundog]

Now down to 71, nice, we take

 

[LibertyBell]

6 minutes ago, bluewave said:

100°+ days at JFK

Maximum 1-Day Mean Max Temperature 
for JFK INTERNATIONAL AIRPORT, NY
Click column heading to sort ascending, click again to sort descending.

1	104.0	1966-07-03 through 1966-07-03
2	103.0	2011-07-22 through 2011-07-22
3	102.0	2025-06-25 through 2025-06-25
-	102.0	2025-06-24 through 2025-06-24
-	102.0	2011-07-23 through 2011-07-23
-	102.0	1999-07-05 through 1999-07-05
-	102.0	1963-07-01 through 1963-07-01
4	101.0	2010-07-06 through 2010-07-06
-	101.0	2010-07-04 through 2010-07-04
-	101.0	1993-07-09 through 1993-07-09
-	101.0	1966-07-04 through 1966-07-04
-	101.0	1966-07-02 through 1966-07-02
-	101.0	1957-07-22 through 1957-07-22
-	101.0	1948-08-27 through 1948-08-27
5	100.0	2013-07-18 through 2013-07-18
-	100.0	2010-07-07 through 2010-07-07
-	100.0	1993-07-10 through 1993-07-10
-	100.0	1983-08-20 through 1983-08-20
-	100.0	1983-07-16 through 1983-07-16
-	100.0	1972-07-23 through 1972-07-23
-	100.0	1948-08-26 through 1948-08-26

1948 had a wildly hot summer, if I remember correctly from what I read NYC had 3 100+ days (consecutively in July) and JFK had 2 100+ days (consecutively in August).  JFK may have hit 100+ in July too, but their period of record only began at the end of July so they didn't record that earlier heatwave in which NYC hit 100+ 3 days in a row?

 

[bluewave]

7 minutes ago, LibertyBell said:

So 1983 was the only time that JFK had multiple 2 separate heatwaves that peaked at 100+

I think NYC had two such heatwaves in both 1948 and 1966.

The other thing to watch going forward is the potential for a 10”+ rainfall event in a few hours or spread out over a month for someone in the area. Every other La Niña like this year since 1955 had one following the major 103°+ heat. While this isn’t a guarantee, it’s something to be aware of that happened in the past from the summer into early and mid fall.

La Niña years with 10”+ rainfall daily or monthly events following peak 103°+ heat

2021

2011

2005

1999

1955

[LibertyBell]

1 minute ago, Sundog said:

Now down to 71, nice, we take

 

wow you dropped way faster, it was still 81 when I woke up this morning, now down to 76 here.  I'm keeping the a/c on until it drops into the 60s.

[Brian5671]

Just now, LibertyBell said:

wow you dropped way faster, it was still 81 when I woke up this morning, now down to 76 here.  I'm keeping the a/c on until it drops into the 60s.

down to 66 here.    I doubt we get back to 70 today

[LibertyBell]

6 minutes ago, bluewave said:

The other thing to watch going forward is the potential for a 10”+ rainfall event in a few hours or spread out over a month for someone in the area. Every La Niña since 1955 had one following the major 103°+ heat. While this isn’t a guarantee, it’s something to be aware of that happened in the past. 

La Niña years with 10”+ daily or monthly events following peak 103°+ heat

2021

2011

2005

1999

1955

The intensity of this heat does remind me of 2011 (the only other summer with multiple 102+ days at JFK), except a month earlier than that extreme heatwave.  Do you think if this had happened in late July it would have been even hotter and do you see a heavy rainfall month like what happened in 2011 after that extreme heatwave to repeat itself? If it's going to occur a month earlier, just like the big heat did, it would happen in July instead of in August.

 

[LibertyBell]

3 minutes ago, bluewave said:

The other thing to watch going forward is the potential for a 10”+ rainfall event in a few hours or spread out over a month for someone in the area. Every La Niña since 1955 had one following the major 103°+ heat. While this isn’t a guarantee, it’s something to be aware of that happened in the past. 

La Niña years with 10”+ daily or monthly events following peak 103°+ heat

2021

2011

2005

1999

1955

1955 and 1999 had drought busting tropical events ..... 1999 really stands out to me as the entire summer was scorching hot (the entire month of July) and droughty and then Floyd came calling in mid September and dropped over 10 inches of rain in NJ and eastern PA.

The longevity of the 1999 and 1993 super heatwaves are the only ones that challenge 1953.

[SACRUS]

 

79 / 70 as we goto a So-Cal marine layer the next 42 hours.

[Sundog]

12 minutes ago, LibertyBell said:

wow you dropped way faster, it was still 81 when I woke up this morning, now down to 76 here.  I'm keeping the a/c on until it drops into the 60s.

Upper 60s are now popping up on the north side of Queens/Nassau.

[uofmiami]

4 minutes ago, Sundog said:

Upper 60s are now popping up on the north side of Queens/Nassau.

68 at both my stations. Feels refreshing out after the heatwave. 

[Sundog]

2 minutes ago, uofmiami said:

68 at both my stations. Feels refreshing out after the heatwave. 

@LibertyBell is the warmest spot in Nassau in the mid 70s

Northern half of Nassau and now northern Queens is now in the upper 60s too 

[Sundog]

I should specify northeastern Queens

[LibertyBell]

9 minutes ago, Sundog said:

@LibertyBell is the warmest spot in Nassau in the mid 70s

Northern half of Nassau and now northern Queens is now in the upper 60s too 

now 74 here, it's dropping slowly but the best thing is that wind is cooling down my house.

 

[LibertyBell]

9 minutes ago, Sundog said:

I should specify northeastern Queens

we're so used to cloudy / rainy weekends, today feels like a Saturday

[LoboLeader1]

65 here. Humidity to return this weekend, radio met stated severe wx possible on Saturday. I'll take that with a grain of salt since most of the severe wx has been out to our west of late.

[Stormlover74]

Dropped to 79 here

[donsutherland1]

55 minutes ago, LibertyBell said:

1948 had a wildly hot summer, if I remember correctly from what I read NYC had 3 100+ days (consecutively in July) and JFK had 2 100+ days (consecutively in August).  JFK may have hit 100+ in July too, but their period of record only began at the end of July so they didn't record that earlier heatwave in which NYC hit 100+ 3 days in a row?

 

The 3 consecutive 100 degree days in 1948 occurred during August 26-28.

[winterwarlock]

Back to awful dreary cloudy cool weather

 

Who wants this crap

[Poker2015]

59 minutes ago, Brian5671 said:

down to 66 here.    I doubt we get back to 70 today

Wow, that really dropped. I've been sitting at 82 for a couple hours now.