388
CDUS41 KOKX 302135
CLIISP
CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK, NY
435 PM EST TUE DEC 30 2025
...............................
..THE ISLIP NY CLIMATE SUMMARY FOR DECEMBER 30 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 34 1200 PM 61 2024 41 -7 61
MINIMUM 29 600 AM 1 1963 27 2 45
AVERAGE 32 34 -2 53
PRECIPITATION (IN)
TODAY 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)
TODAY 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
TODAY 33 31 2 12
MONTH TO DATE 910 833 77 851
SINCE DEC 1 910 833 77 851
SINCE JUL 1 1699 1772 -73 1541
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 32 HIGHEST WIND DIRECTION W (280)
HIGHEST GUST SPEED 48 HIGHEST GUST DIRECTION W (280)
AVERAGE WIND SPEED 19.2
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 46 600 AM
LOWEST 30 1200 PM
AVERAGE 38
......................................................
THE ISLIP NY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 41 59 1965
1992
MINIMUM TEMPERATURE (F) 27 -1 1963
SUNRISE AND SUNSET
DECEMBER 30 2025......SUNRISE 716 AM EST SUNSET 434 PM EST
DECEMBER 31 2025......SUNRISE 717 AM EST SUNSET 435 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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