387
CDUS41 KOKX 290624
CLIISP
CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK, NY
124 AM EST MON DEC 29 2025
...............................
..THE ISLIP NY CLIMATE SUMMARY FOR DECEMBER 28 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 42 1146 PM 56 2008 42 0 51
2018
2023
MINIMUM 16 441 AM 3 1966 27 -11 34
AVERAGE 29 34 -5 43
PRECIPITATION (IN)
YESTERDAY 0.04 3.04 2023 0.14 -0.10 0.50
MONTH TO DATE 3.55 4.30 -0.75 5.12
SINCE DEC 1 3.55 4.30 -0.75 5.12
SINCE JAN 1 36.69 45.58 -8.89 47.69
SNOWFALL (IN)
YESTERDAY 0.0 4.0 1990 0.2 -0.2 0.0
MONTH TO DATE 12.4 3.8 8.6 2.1
SINCE DEC 1 12.4 3.8 8.6 2.1
SINCE JUL 1 12.4 4.3 8.1 2.1
SNOW DEPTH 4
DEGREE DAYS
HEATING
YESTERDAY 36 31 5 22
MONTH TO DATE 853 771 82 826
SINCE DEC 1 853 771 82 826
SINCE JUL 1 1642 1710 -68 1516
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 13 HIGHEST WIND DIRECTION W (250)
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION S (190)
AVERAGE WIND SPEED 5.2
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 1000 PM
LOWEST 61 1100 AM
AVERAGE 77
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THE ISLIP NY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 41 65 1984
MINIMUM TEMPERATURE (F) 27 11 1963
2017
SUNRISE AND SUNSET
DECEMBER 29 2025......SUNRISE 716 AM EST SUNSET 433 PM EST
DECEMBER 30 2025......SUNRISE 716 AM EST SUNSET 434 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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