April 2026

[donsutherland1]

The recent rain delivered 0.50"-1.50" of rain to the region, along with some locally higher figures. Rainfall amounts included:

Bridgeport: 0.89"
Islip: 1.31"
New Haven: 0.74"
New York City-Central Park: 1.39"
New York City-JFK Airport: 1.49"
New York City-LaGuardia Airport: 1.45"
Newark: 1.64"
Philadelphia: 0.51"
White Plains: 1.07"

Tomorrow through Wednesday will be somewhat warmer with highs reaching the lower and middle 60s.

However, another shot of rain followed by cooler temperatures will arrive during the middle of the week. A general 0.50"-1.00" rainfall appears likely for Wednesday into Thursday. May could also open with cooler than normal conditions.

The ENSO Region 1+2 anomaly was +1.8°C and the Region 3.4 anomaly was +0.5°C for the week centered around April 15. For the past six weeks, the ENSO Region 1+2 anomaly has averaged +1.43°C and the ENSO Region 3.4 anomaly has averaged +0.15°C. El Niño conditions will likely develop during late spring or early summer.

The SOI was -28.05 today. 

The preliminary Arctic Oscillation (AO) was -0.960 today. 

Based on sensitivity analysis applied to the latest guidance, there is an implied near 98% probability that New York City will have a warmer than normal April (1991-2020 normal). April will likely finish with a mean temperature near 55.2° (1.5° above normal). 

Supplemental Information: The projected mean would be 2.2° above the 1981-2010 normal monthly value. 

 

[TriPol]

Is there a potential frost on tap next weekend? Can't think of a worse time for farmers who have been hit hard this spring.

 

[MANDA]

Chilly this morning.  Overnight low of 36.  

[FPizz]

34 this morning, 1.27" of rain this weekend.  

[SACRUS]

61 / 48 off a low of 35.  Nicest day of the week coming up.  Not bad Tuesday but clouds build in ahead of the next batch of rain on Wed/Thu.  Continued cool and possibly wet one or the whole weekend.  Moderation betwen May 5 - 9th and next shot at 70s or warmer then but it may take till mid month to push heights / riding east for any persistent tineframe.

 

[SACRUS]

 

Did touch 70 today - gorgeous out.

[SACRUS]

 

Records:

Highs:

EWR: 94 (1990)
NYC: 92 (1915)
LGA: 89 (1990)
JFK: 77 (1949)


Lows:

EWR: 33 (1933)
NYC: 36 (1932)
LGA: 38 (1946)
JFK: 34 (1967)

Historical:
 

1898: The first Weather Bureau kite was launched in Topeka, Kansas to report daily, early morning, atmospheric observations. By year's end, 16 additional launch sites would be in operation. 

1899 - A tornado struck Kirksville, MO, killing 34 persons and destroying 300 buildings. (David Ludlum)

 

1912: The April 27-28, 1912 outbreak was the climax of a wild, week-long period of severe weather that occurred in Oklahoma. Strong to violent tornadoes struck portions of central and north-central Oklahoma on April 20, 1912. Also, a violent tornado hit Ponca City, OK on April 25, 1912. From the 27 through the 28th, 16 tornadoes rated F2 or greater touched down in the state with 6 of them rated F4. About 40 people were killed, and the storms injured 120 people. 

1931 - The temperature at Pahala, located on the main island of Hawaii, soared to 100 degrees to establish a state record. (The Weather Channel)

1931: The temperature at Pahala, located on the main island of Hawaii, soared to 100 degrees to establish a state record.

1942 - A destructive tornado swept across Rogers County and Mayes County in Oklahoma. The tornado struck the town of Pryor killing 52 persons and causing two million dollars damage. (David Ludlum)

1987 - Forty-two cities in the western and south central U.S. reported record high temperatures for the date. The afternoon high of 87 degrees at Olympia WA was an April record, and highs of 92 degrees at Boise ID, 95 degrees at Monroe LA, and 96 degrees at Sacramento CA tied April records. (The National Weather Summary) More than 300 daily temperature records fell by the wayside during a two week long heat wave across thirty-four states in the southern and western U.S. Thirteen cities established records for the month of April. (Sandra and TI Richard Sanders - 1987)

1988 - Mount Washington NH reported seven feet of snow in ten days, pushing their snowfall total for the month past the previous record of 89.3 inches set in 1975. (The National Weather Summary)

1989 - Thunderstorms produced severe weather from the Lower and Middle Mississippi Valley to Virginia and the Carolinas. Hail up to four and a half inches in diameter caused five million dollars damage around Omaha NE. Thunderstorms spawned eleven tornadoes, and there were 160 other reports of large hail and damaging winds. (The National Weather Summary) (Storm Data)

1990 - Thunderstorms produced severe weather in eastern Texas and the Lower Mississippi Valley. Severe thunderstorms spawned thirteen tornadoes in Texas and twelve in Louisiana. A tornado southwest of Coolidge TX injured eight persons and caused more than five million dollars damage. There were also eighty-five reports of large hail and damaging winds, with baseball size hail reported at Mexia TX and Shreveport LA. (The National Weather Summary) (Storm Data) Forty-three cities in the eastern U.S. reported record high temperatures for the date. Records highs included 94 degrees at Charleston WV, 95 degrees at Baltimore MD and96 degrees at Richmond VA. (The National Weather Summary)

 

2003: For only the 11th time since records began in 1871, hail was observed in Key West Florida. A severe thunderstorm produced hail to 1.75 inches in diameter which easily broke the previous record of a half an inch in diameter which was set on May 10, 1961.

2011 - An estimated 305 tornados between the 27th and 28th sets a record for the largest outbreak ever recorded, including two EF-5s, four EF-4s and 21 EF-3s. Arkansas through Mississippi, Alabama, Georgia, southern Tennessee, Virginia to Pennsylvania and New York were all affected. An estimated 300 died including 210 in Alabama alone. This brought the April total past 600, the most in any month in recorded US weather history.

[SACRUS]

SST Anomaly

 

 

 

[donsutherland1]

Tomorrow and Wednesday will see temperatures reach the lower and middle 60s, with tomorrow being the warmer day.

However, another shot of rain followed by somewhat cooler temperatures will arrive during the middle of the week. A general 0.50"-1.00" rainfall appears likely for Wednesday into Thursday. May could also open with cooler than normal conditions.

The ENSO Region 1+2 anomaly was +1.5°C and the Region 3.4 anomaly was +0.7°C for the week centered around April 22. For the past six weeks, the ENSO Region 1+2 anomaly has averaged +1.47°C and the ENSO Region 3.4 anomaly has averaged +0.27°C. El Niño conditions will likely develop during late spring or early summer.

The SOI was -19.11 today. 

The preliminary Arctic Oscillation (AO) was -0.189 today. 

Based on sensitivity analysis applied to the latest guidance, there is an implied near 100% probability that New York City will have a warmer than normal April (1991-2020 normal). April will likely finish with a mean temperature near 55.2° (1.5° above normal). 

Supplemental Information: The projected mean would be 2.2° above the 1981-2010 normal monthly value. 

 

[psv88]

70 today. Gorgeous 

[the_other_guy]

On 4/26/2026 at 10:46 AM, bluewave said:

2009 would probably be too big of an ask in this much warmer climate. It was the 2nd coolest June and July on record at spots like Islip.

2023 was our last summer with a developing El Niño that became very strong. Was cooler overall  than the other 2020s summers so far but still not really cool by historical standards.

 

Time Series Summary for Islip Area, NY (ThreadEx) 10 Coolest June 1 to July 31 Periods
Click column heading to sort ascending, click again to sort descending.

1	1965-07-31	67.9	0
2	2009-07-31	68.2	0
3	1978-07-31	68.5	0
4	1979-07-31	68.7	0
-	1968-07-31	68.7	0
5	1992-07-31	68.9	0
6	1982-07-31	69.0	0
7	1964-07-31	69.2	0
8	1972-07-31	69.3	0
9	1985-07-31	69.4	0
10	2000-07-31	69.6	0
-	1996-07-31	69.6	0

 

Just for perspective, 2009 was 17 years ago. The climate has not rapidly changed in 17 years. Declaring it has is disingenuous 

[bluewave]

8 hours ago, the_other_guy said:

Just for perspective, 2009 was 17 years ago. The climate has not rapidly changed in 17 years. Declaring it has is disingenuous 

The climate has had three shifts to the warmer since 2009-2010. Our summers became warmer beginning with the 2010 summer. We haven’t had any cooler summers  against the long term average like in 2009 or earlier since then which we would normally get every several years.

The only three cooler summers since then against the recent much warmer means like 2023, 2017, and 2014 have been closer to or a little warmer than the older long term average. Most of the summers since then have been near the top rankings for warmth.

Starting with December 2015, the U.S. winters have become much warmer to the point where we have seen many new top warmest winters for the CONUS and no significantly colder ones since then. The most recent temperature jump in 2023-2024 produced the #1 warmest CONUS winter on record that winter and the #2 warmest winter this year in 2025-2026.

The concern going forward is that we will get another baseline temperature jump with this developing very strong El Niño for 2026-2027 that will just add to the previous ones since 2015-2016.

I can fully understand your point of view that the climate has not rapidly changed. Since it’s human nature to normalize the recent 3-7 of weather as nothing unusual.  Plus it may not be that obvious when we get used to more Mid-Atlantic style temperatures like used to be normal for VA. 

[PhiEaglesfan712]

PHL Summers since 2010

Below 1981-2010 average (75.9)

2014 (75.7)

2023 (75.8, although JAS averaged 76.1, which is above the 1981-2010 average)

Above 1981-2010 average, but below 1991-2020 average (76.7)

2013 (76.6)

2017 (76.4)

Currently, the 2001-present average is 77.2, which would put 2018 (76.9) below it. Depending on how warm the summers of 2026-2030 are, last summer (77.4) could end up below the 2001-2030 average.

[LongBeachSurfFreak]

30.9 at KFOK and 45 here in Lynbrook. Same island extreme differences in radiational cooling.


.

[bluewave]

41 minutes ago, PhiEaglesfan712 said:

PHL Summers since 2010

Below 1981-2010 average (75.9)

2014 (75.7)

2023 (75.8, although JAS averaged 76.1, which is above the 1981-2010 average)

Above 1981-2010 average, but below 1991-2020 average (76.7)

2013 (76.6)

2017 (76.4)

Currently, the 2001-present average is 77.2, which would put 2018 (76.9) below it. Depending on how warm the summers of 2026-2030 are, last summer (77.4) could end up below the 2001-2030 average.

2009 was the last average temperature summer in Philly against the 1951-2000 mean. This was the first slightly cooler winter in Philly since 2015-2016. So it’s pretty representative of the wider trends across the region and nation. 
 

 

[Brian5671]

Where'd the big rainy pattern go-Upton has showers Wed night/Thurs AM and then nothing through the weekend

[SACRUS]

55 / 38 clear (for now)  Clouds arriving by noon / early afternoon.  Still think we'll push rain totals 0.50 - 1.50 in places but most between 05 and 1.00 inches Wed into Thu.   Thu / Fri kind of a repeat of Mon/Tue in reverse Overall cooler pattern - clouds Saturday and still watch for unsettled progression.  Trough into the east now to persist towards the first week of May.  Moderation towards  mid May.  Could be looking at a 2008 style May.

 

[IrishRob17]

22 minutes ago, Brian5671 said:

Where'd the big rainy pattern go-Upton has showers Wed night/Thurs AM and then nothing through the weekend

From Uptons discussion:

.KEY MESSAGE 3...
The next chance for unsettled weather could come this weekend with a
passing offshore low. The GFS and ICON are more aggressive showing
phasing of the northern and southern stream with a surface low
deepening off the Mid-Atlantic coast. This would bring better
chances for seeing wet weather and windy conditions. Both the ECMWF
and GDPS are either offshore or weaker with this system, so there is
plenty of uncertainty. Stuck with NBM slight chance PoPs for now,
since even the more aggressive scenarios bring the low a little too
far offshore.

[Brian5671]

12 minutes ago, IrishRob17 said:

From Uptons discussion:

.KEY MESSAGE 3...
The next chance for unsettled weather could come this weekend with a
passing offshore low. The GFS and ICON are more aggressive showing
phasing of the northern and southern stream with a surface low
deepening off the Mid-Atlantic coast. This would bring better
chances for seeing wet weather and windy conditions. Both the ECMWF
and GDPS are either offshore or weaker with this system, so there is
plenty of uncertainty. Stuck with NBM slight chance PoPs for now,
since even the more aggressive scenarios bring the low a little too
far offshore.

must have been the 0z GFS-the 6z is way south and OTS

[jm1220]

15 minutes ago, Brian5671 said:

must have been the 0z GFS-the 6z is way south and OTS

Suppression depression in May. Hate to see it. I’ll be more than happy to salvage a weekend though. 

[Brian5671]

3 minutes ago, jm1220 said:

Suppression depression in May. Hate to see it. I’ll be more than happy to salvage a weekend though. 

that's where strong blocking can help-keep it all south!

[bluewave]

It will be interesting to see if the coming El Niño can shift us out of this dry pattern which began in September 2024.

 

 

[JerseyWx]

58 minutes ago, bluewave said:

It will be interesting to see if the coming El Niño can shift us out of this dry pattern which began in September 2024.

 

 

You can see how the deficit got erased in NW Jersey since end of Feb.  Been pretty good here.

[Dan76]

3 hours ago, Brian5671 said:

Where'd the big rainy pattern go-Upton has showers Wed night/Thurs AM and then nothing through the weekend

CMC clips us sunday Fwiw.

[The 4 Seasons]

I'm putting out a call for anyone who has final snowfall totals for the season for their town. There wasn't much after the last update on March 2nd but interior areas may have added a bit to this. 

Let me know via PM or tag me, thanks!

Winter 25-26 snowfall maps

[jm1220]

10 minutes ago, The 4 Seasons said:

I'm putting out a call for anyone who has final snowfall totals for the season for their town. There wasn't much after the last update on March 2nd but interior areas may have added a bit to this. 

Let me know via PM or tag me, thanks!

Winter 25-26 snowfall maps

Had a very minor event after then that was a good coating so I guess I’ll go with 52.2”. Thanks for putting the maps together! 

[IrishRob17]

1 hour ago, The 4 Seasons said:

I'm putting out a call for anyone who has final snowfall totals for the season for their town. There wasn't much after the last update on March 2nd but interior areas may have added a bit to this. 

Let me know via PM or tag me, thanks!

Winter 25-26 snowfall maps

My season total is a touch higher, 46.3"

[IrishRob17]

6 hours ago, Brian5671 said:

must have been the 0z GFS-the 6z is way south and OTS

Updated discussion

.KEY MESSAGE 2...
An upper level low shifts east and will linger over eastern
Canada, with broad troughing over the eastern US through the
weekend. This pattern will lead to cool conditions, with a
stretch of highs and lows 5 to 10 degrees below normal. Stuck
with NBM temperatures for now, but trends will be monitored as
there will be a few nights across the interior where frost may
be possible.

The offshore low that was mentioned in the previous forecast has
shifted farther in the latest guidance, far enough to lower the
potential for impacts to the area.

[donsutherland1]

Tomorrow will see temperatures reach the lower 60s. Another shot of rain will arrive. A general 0.50"-1.00" rainfall appears likely tomorrow into Thursday. Following the rainfall, temperatures will top out in the lower 60s through Saturday. 

May will likely open with cooler than normal conditions. Sunday could be especially cool with highs only in the upper 50s.

The ENSO Region 1+2 anomaly was +1.5°C and the Region 3.4 anomaly was +0.7°C for the week centered around April 22. For the past six weeks, the ENSO Region 1+2 anomaly has averaged +1.47°C and the ENSO Region 3.4 anomaly has averaged +0.27°C. El Niño conditions will likely develop during late spring or early summer.

The SOI was -15.07 today. 

The preliminary Arctic Oscillation (AO) was +0.394 today. 

Based on sensitivity analysis applied to the latest guidance, there is an implied near 100% probability that New York City will have a warmer than normal April (1991-2020 normal). April will likely finish with a mean temperature near 55.2° (1.5° above normal). 

Supplemental Information: The projected mean would be 2.2° above the 1981-2010 normal monthly value. 

 

[SACRUS]

 

Records:

Highs:

EWR: 90 (2009)
NYC: 90 (2009)
LGA: 89 (2009)
JFK: 85 (2009)


Lows:

EWR: 33 (1934)
NYC: 31 (1874)
LGA: 36 (1947)
JFK: 37 (1966)

Historical:

 

1893: A half-mile wide estimated F4 tornado killed 23 people and injured 150 as it tore a path of devastation through Cisco, Texas. Every building in the town was either destroyed or severely damaged. 

1898: The minimum temperature for the date is 33°F. in Washington, DC and also the latest measurable snow in Washington with 0.5 inches melted 0.29 inches. (Bob Ryan's 2000 Almanac)
 

1921 - A severe hailstorm in Anson County, NC, produced hail the size of baseballs. Gardens, grain fields and trees were destroyed. Pine trees in the storm's path had to be cut for lumber because of the hail damage. (The Weather Channel)

1928 - A coastal storm produced tremendous late season snows in the Central Appalachians, including 35 inches at Bayard WV, 31 inches at Somerset PA, and 30 inches at Grantsville MD. High winds accompanying the heavy wet snow uprooted trees and unroofed a number of homes. The storm caused great damage to fruit trees and wild life. (David Ludlum) (The Weather Channel)

1957: The maximum temperature for the date is 92°F. in Washington, DC. (Ref. Washington Weather Records - KDCA)

1973: The record crest of the Mississippi River at St. Louis, Missouri was registered at 43.23 feet on this day. This level exceeded the previous 1785 mark by 1.23 feet. This record was broken during the 1993 Flood when the Mississippi River crested at 49.58 feet on August 1st. At Memphis, Tennessee, the Mississippi was over flood stage for 63 days, more than that of the historic 1927 flood, and the river was above flood stage for an even longer 107 days at upstream Cairo, Illinois. Out of the seven largest floods on the Mississippi between 1927 and 1997, the 1973 event ranked third in both volume discharged and duration but only sixth in flood height. Over $250 million of damages were incurred mainly in the Mississippi Valley states of Missouri, Arkansas, Tennessee, Mississippi, and Louisiana.

 

1987 - Twenty cities in the western and central U.S. reported record high temperatures for the date. Highs of 95 degrees at Houston TX, 95 degrees at Lake Charles LA, and 94 degrees at Port Arthur TX, were April records. (The National Weather Summary)

1988 - Miami, FL, hit 92 degrees, marking a record eight days of 90 degree heat in the month of April. Squalls produced snow in the Washington D.C. area. Belvoir VA reported a temperature reading of 57 degrees at the time the snow began. (Storm Data) (The National Weather Summary)

1989 - Strong northerly winds and heavy snow ushered cold air into the north central U.S. Snowfall totals in Montana ranged up to 20 inches at Miles City. Thunderstorms produced severe weather from eastern Texas to the Southern Appalachians and the southern Ohio Valley. Hail four and a half inches in diameter was reported at Keller TX and White Settlement TX. (Storm Data) (The National Weather Summary)

1990 - Thunderstorms produced severe weather in the southeastern U.S. during the day. Severe thunderstorms spawned four tornadoes, including one which injured four persons at Inman SC. There were also more than one hundred reports of large hail and damaging winds, with better than half of those reports in Georgia. Strong thunderstorm winds injured four people at Sadler's Creek SC. (The National Weather Summary) (Storm Data) Twenty-nine cities in the northeastern U.S. reported record high temperatures for the date as readings soared into the 80s and lower 90s. Highs of 88 degrees at Binghamton NY, 94 degrees at Buffalo NY, 89 degrees at Erie PA, 90 degrees at Newark NJ, 93 degrees at Rochester NY and 92 degrees at Syracuse NY, were records for the month of April. (The National Weather Summary)

1991: Memphis, Tennessee recorded their wettest April ever with 15.03 inches, breaking their previous record of 13.90 inches in 1872.

2002: During the evening hours, a violent F4 tornado carved a 64-mile path across southeast Maryland. The La Plata, Maryland tornado was part of a larger severe weather outbreak that began in the mid-Mississippi Valley early on that day and spread across portions of the Ohio Valley and the Mid-Atlantic States. In Maryland, three deaths and 122 injuries were a direct result of the storm. Property damage exceeded $100 million. Tornadoes along the Atlantic coast are not frequent, and tornadoes of this magnitude are extremely rare. Only six F4 tornadoes have occurred farther north and east of the La Plata storm: Worchester, Massachusetts - 1953; New York/Massachusetts - 1973; Windsor Locks, Connecticut - 1979; five counties in New York - 1989; New Haven, Connecticut - 1989; North Egremont, Massachusetts - 1995. None was as close to the coast. The tornado traveled across the Chesapeake Bay almost to the Atlantic.