001
CDUS41 KOKX 130645
CLIISP
CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK, NY
145 AM EST SAT DEC 13 2025
...............................
..THE ISLIP NY CLIMATE SUMMARY FOR DECEMBER 12 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 37 304 PM 68 2015 45 -8 43
MINIMUM 25 706 AM 7 1988 31 -6 28
AVERAGE 31 38 -7 36
PRECIPITATION (IN)
YESTERDAY 0.00 2.44 2010 0.16 -0.16 0.00
MONTH TO DATE 1.38 1.88 -0.50 2.43
SINCE DEC 1 1.38 1.88 -0.50 2.43
SINCE JAN 1 34.52 43.16 -8.64 45.00
SNOWFALL (IN)
YESTERDAY 0.0 2.4 1982 0.2 -0.2 0.0
MONTH TO DATE T 1.1 -1.1 T
SINCE DEC 1 T 1.1 -1.1 T
SINCE JUL 1 T 1.6 -1.6 T
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 34 27 7 29
MONTH TO DATE 355 307 48 323
SINCE DEC 1 355 307 48 323
SINCE JUL 1 1144 1246 -102 1013
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
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WIND (MPH)
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION W (280)
HIGHEST GUST SPEED 35 HIGHEST GUST DIRECTION W (280)
AVERAGE WIND SPEED 12.8
SKY COVER
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 60 1100 PM
LOWEST 35 100 PM
AVERAGE 48
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THE ISLIP NY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 45 68 2015
MINIMUM TEMPERATURE (F) 30 5 1982
SUNRISE AND SUNSET
DECEMBER 13 2025......SUNRISE 708 AM EST SUNSET 425 PM EST
DECEMBER 14 2025......SUNRISE 709 AM EST SUNSET 425 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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