153
CDUS41 KOKX 282141
CLIISP
CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK, NY
441 PM EST SUN DEC 28 2025
...............................
..THE ISLIP NY CLIMATE SUMMARY FOR DECEMBER 28 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 34 250 PM 56 2008 42 -8 51
2018
2023
MINIMUM 16 441 AM 3 1966 27 -11 34
AVERAGE 25 34 -9 43
PRECIPITATION (IN)
TODAY 0.00 3.04 2023 0.14 -0.14 0.50
MONTH TO DATE 3.51 4.30 -0.79 5.12
SINCE DEC 1 3.51 4.30 -0.79 5.12
SINCE JAN 1 36.65 45.58 -8.93 47.69
SNOWFALL (IN)
TODAY 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
TODAY 40 31 9 22
MONTH TO DATE 857 771 86 826
SINCE DEC 1 857 771 86 826
SINCE JUL 1 1646 1710 -64 1516
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 9 HIGHEST WIND DIRECTION W (260)
HIGHEST GUST SPEED MM HIGHEST GUST DIRECTION MM
AVERAGE WIND SPEED 5.4
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 85 800 AM
LOWEST 61 1100 AM
AVERAGE 73
......................................................
THE ISLIP NY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 41 65 1984
MINIMUM TEMPERATURE (F) 27 11 1963
2017
SUNRISE AND SUNSET
DECEMBER 28 2025......SUNRISE 716 AM EST SUNSET 432 PM EST
DECEMBER 29 2025......SUNRISE 716 AM EST SUNSET 433 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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