942
CDUS41 KOKX 292144
CLIISP
CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK, NY
444 PM EST MON DEC 29 2025
...............................
..THE ISLIP NY CLIMATE SUMMARY FOR DECEMBER 29 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 49 345 PM 65 1984 41 8 56
MINIMUM 40 1213 AM 11 1963 27 13 47
2017
AVERAGE 45 34 11 52
PRECIPITATION (IN)
TODAY 0.19 1.56 2013 0.13 0.06 0.16
MONTH TO DATE 3.74 4.43 -0.69 5.28
SINCE DEC 1 3.74 4.43 -0.69 5.28
SINCE JAN 1 36.88 45.71 -8.83 47.85
SNOWFALL (IN)
TODAY 0.0 3.1 1987 0.2 -0.2 0.0
MONTH TO DATE 12.4 4.0 8.4 2.1
SINCE DEC 1 12.4 4.0 8.4 2.1
SINCE JUL 1 12.4 4.5 7.9 2.1
SNOW DEPTH 1
DEGREE DAYS
HEATING
TODAY 20 31 -11 13
MONTH TO DATE 873 802 71 839
SINCE DEC 1 873 802 71 839
SINCE JUL 1 1662 1741 -79 1529
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 20 HIGHEST WIND DIRECTION W (280)
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION W (280)
AVERAGE WIND SPEED 10.4
SKY COVER
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
LIGHT RAIN
FOG
FOG W/VISIBILITY <= 1/4 MILE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 900 AM
LOWEST 80 400 PM
AVERAGE 89
......................................................
THE ISLIP NY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 41 61 2024
MINIMUM TEMPERATURE (F) 27 1 1963
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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