499
CXUS51 KOKX 011926
CLSISP
CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK, NY
325 PM EDT SUN JUN 01 2025
...............................
...THE ISLIP NY CLIMATE SUMMARY FOR THE SEASON, FROM
3/1/2025 TO 5/31/2025...
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1963 TO 2025
WEATHER OBSERVED NORMAL DEPART LAST YEAR'S
VALUE DATE(S) VALUE FROM VALUE
NORMAL
..........................................................
TEMPERATURE (F)
RECORD
HIGH 98 05/20/1996
LOW 0 03/19/1967
03/18/1967
HIGHEST 82 03/29 MM MM
LOWEST 17 03/03 MM MM
AVG. MAXIMUM 61.5 58.1 3.4
AVG. MINIMUM 44.6 41.3 3.3
MEAN 53.1 49.7 3.4
DAYS MAX >= 90 0 0.3 -0.3
DAYS MAX <= 32 0 1.1 -1.1
DAYS MIN <= 32 9 20.2 -11.2
DAYS MIN <= 0 0 0.0 0.0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 22.91 1998
MINIMUM 6.00 1995
TOTALS 11.41 11.85 -0.44 17.66
DAILY AVG. 0.12 0.13 -0.01
DAYS >= .01 38 33.7 4.3
DAYS >= .10 28 20.7 7.3
DAYS >= .50 6 7.6 -1.6
DAYS >= 1.00 4 2.8 1.2
GREATEST
24 HR. TOTAL 1.55 03/16 TO 03/17
STORM TOTAL 1.46
(MM/DD(HH))
SNOWFALL (INCHES)
RECORDS
TOTAL 36.5 2018
24 HR TOTAL 16.0 MM
TOTALS 0.0 7.1 -7.1
LIQUID EQUIV 0.00 0.70 -0.70
SINCE 7/1 11.7 31.8 -20.1
LIQUID 7/1 1.17
DAYS >= TRACE 0 3.0 -3.0
DAYS >= 1.0 0 1.9 -1.9
GREATEST
SNOW DEPTH 0
24 HR TOTAL MM
STORM TOTAL 0.0
(MM/DD(HH))
DEGREE DAYS
HEATING TOTAL 1086 1435 -349
SINCE 7/1 4568 5154 -586
COOLING TOTAL 12 29 -17
SINCE 1/1 12 29 -17
..........................................................
WIND (MPH)
AVERAGE WIND SPEED 10.8
HIGHEST WIND SPEED/DIRECTION 39/300 DATE 03/22
HIGHEST GUST SPEED/DIRECTION 60/290 DATE 03/22
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.64
NUMBER OF DAYS FAIR 15
NUMBER OF DAYS PC 39
NUMBER OF DAYS CLOUDY 38
AVERAGE RH (PERCENT) 66
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 4 MIXED PRECIP 0
HEAVY RAIN 9 RAIN 17
LIGHT RAIN 55 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 0 SLEET 0
FOG 46 FOG W/VIS <= 1/4 MILE 17
HAZE 10
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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