532
CDUS41 KOKX 192141
CLIISP
CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK, NY
441 PM EST FRI DEC 19 2025
...............................
..THE ISLIP NY CLIMATE SUMMARY FOR DECEMBER 19 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 59R 1007 AM 55 2017 44 15 47
MINIMUM 51 137 AM 9 1989 29 22 34
AVERAGE 55 36 19 41
PRECIPITATION (IN)
TODAY 0.68 0.92 1996 0.16 0.52 0.10
MONTH TO DATE 2.48 2.97 -0.49 4.47
SINCE DEC 1 2.48 2.97 -0.49 4.47
SINCE JAN 1 35.62 44.25 -8.63 47.04
SNOWFALL (IN)
TODAY 0.0 9.6 2009 0.2 -0.2 0.0
MONTH TO DATE 5.8 2.1 3.7 T
SINCE DEC 1 5.8 2.1 3.7 T
SINCE JUL 1 5.8 2.6 3.2 T
SNOW DEPTH 0
DEGREE DAYS
HEATING
TODAY 10 29 -19 24
MONTH TO DATE 566 503 63 513
SINCE DEC 1 566 503 63 513
SINCE JUL 1 1355 1442 -87 1203
COOLING
TODAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 1104 885 219 1012
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 38 HIGHEST WIND DIRECTION S (170)
HIGHEST GUST SPEED 59 HIGHEST GUST DIRECTION S (170)
AVERAGE WIND SPEED 16.5
SKY COVER
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 1100 AM
LOWEST 69 400 PM
AVERAGE 81
......................................................
THE ISLIP NY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 43 58 1999
2002
MINIMUM TEMPERATURE (F) 29 7 1963
SUNRISE AND SUNSET
DECEMBER 19 2025......SUNRISE 712 AM EST SUNSET 427 PM EST
DECEMBER 20 2025......SUNRISE 713 AM EST SUNSET 428 PM EST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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