980
CDUS41 KOKX 310635
CLIISP
CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK, NY
135 AM EST WED DEC 31 2025
...............................
..THE ISLIP NY CLIMATE SUMMARY FOR DECEMBER 30 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 34 1200 PM 61 2024 41 -7 61
MINIMUM 28 1159 PM 1 1963 27 1 45
AVERAGE 31 34 -3 53
PRECIPITATION (IN)
YESTERDAY 0.00 1.33 1971 0.14 -0.14 0.42
MONTH TO DATE 3.74 4.57 -0.83 5.70
SINCE DEC 1 3.74 4.57 -0.83 5.70
SINCE JAN 1 36.88 45.85 -8.97 48.27
SNOWFALL (IN)
YESTERDAY 0.0 9.0 2000 0.3 -0.3 0.0
MONTH TO DATE 12.4 4.3 8.1 2.1
SINCE DEC 1 12.4 4.3 8.1 2.1
SINCE JUL 1 12.4 4.8 7.6 2.1
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 34 31 3 12
MONTH TO DATE 911 833 78 851
SINCE DEC 1 911 833 78 851
SINCE JUL 1 1700 1772 -72 1541
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 32 HIGHEST WIND DIRECTION W (280)
HIGHEST GUST SPEED 48 HIGHEST GUST DIRECTION W (280)
AVERAGE WIND SPEED 18.3
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 46 600 AM
LOWEST 30 1200 PM
AVERAGE 38
......................................................
THE ISLIP NY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 41 59 1965
1992
MINIMUM TEMPERATURE (F) 27 -1 1963
SUNRISE AND SUNSET
DECEMBER 31 2025......SUNRISE 717 AM EST SUNSET 435 PM EST
JANUARY 1 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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