733
CDUS41 KOKX 010625
CLIISP
CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK, NY
125 AM EST THU JAN 01 2026
...............................
..THE ISLIP NY CLIMATE SUMMARY FOR DECEMBER 31 2025
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)
YESTERDAY
MAXIMUM 36 1200 PM 59 1965 41 -5 53
1992
MINIMUM 28 800 PM -1 1963 27 1 33
AVERAGE 32 34 -2 43
PRECIPITATION (IN)
YESTERDAY T 1.26 2018 0.14 -0.14 0.53
MONTH TO DATE 3.74 4.71 -0.97 6.23
SINCE DEC 1 3.74 4.71 -0.97 6.23
SINCE JAN 1 36.88 45.99 -9.11 48.80
SNOWFALL (IN)
YESTERDAY 0.1 2.0 1967 0.2 -0.1 0.0
MONTH TO DATE 12.5 4.5 8.0 2.1
SINCE DEC 1 12.5 4.5 8.0 2.1
SINCE JUL 1 12.5 5.0 7.5 2.1
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 33 31 2 22
MONTH TO DATE 944 864 80 873
SINCE DEC 1 944 864 80 873
SINCE JUL 1 1733 1803 -70 1563
COOLING
YESTERDAY 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 16 HIGHEST WIND DIRECTION W (270)
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION W (280)
AVERAGE WIND SPEED 10.6
SKY COVER
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT SNOW
RELATIVE HUMIDITY (PERCENT)
HIGHEST 66 1100 PM
LOWEST 37 1200 PM
AVERAGE 52
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THE ISLIP NY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 41 63 1966
MINIMUM TEMPERATURE (F) 27 6 2018
SUNRISE AND SUNSET
JANUARY 1 2026.......SUNRISE 717 AM EST SUNSET 436 PM EST
JANUARY 2 2026.......SUNRISE 717 AM EST SUNSET 436 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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