325
CDUS41 KOKX 212032
CLIISP
CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK, NY
432 PM EDT WED MAY 21 2025
...............................
..THE ISLIP NY CLIMATE SUMMARY FOR MAY 21 2025
VALID TODAY AS OF 0400 PM LOCAL TIME.
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1963 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
TODAY
MAXIMUM 56 1105 AM 90 1996 70 -14 69
2022
MINIMUM 52 259 PM 39 2002 52 0 53
2020
AVERAGE 54 61 -7 61
PRECIPITATION (IN)
TODAY 0.01 0.90 1985 0.10 -0.09 0.00
MONTH TO DATE 2.28 2.13 0.15 2.86
SINCE MAR 1 9.02 10.70 -1.68 15.85
SINCE JAN 1 13.34 17.65 -4.31 25.57
SNOWFALL (IN)
TODAY 0.0 MM MM 0.0 0.0 0.0
MONTH TO DATE 0.0 0.0 0.0 0.0
SINCE MAR 1 0.0 7.1 -7.1 0.0
SINCE JUL 1 11.7 31.8 -20.1 10.9
SNOW DEPTH 0
DEGREE DAYS
HEATING
TODAY 11 5 6 4
MONTH TO DATE 59 156 -97 141
SINCE MAR 1 1032 1396 -364 1166
SINCE JUL 1 4514 5115 -601 4505
COOLING
TODAY 0 1 -1 0
MONTH TO DATE 12 8 4 1
SINCE MAR 1 12 10 2 5
SINCE JAN 1 12 10 2 5
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION E (90)
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION E (90)
AVERAGE WIND SPEED 11.4
SKY COVER
AVERAGE SKY COVER 1.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 80 100 AM
LOWEST 64 1100 AM
AVERAGE 72
......................................................
THE ISLIP NY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 70 92 1992
MINIMUM TEMPERATURE (F) 53 37 2002
SUNRISE AND SUNSET
MAY 21 2025...........SUNRISE 530 AM EDT SUNSET 809 PM EDT
MAY 22 2025...........SUNRISE 529 AM EDT SUNSET 810 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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