251
CDUS41 KOKX 140626
CLIISP
CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK, NY
126 AM EST SUN DEC 14 2025
...............................
..THE ISLIP NY CLIMATE SUMMARY FOR DECEMBER 13 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 45 219 PM 68 2015 45 0 34
MINIMUM 21 446 AM 5 1982 30 -9 22
AVERAGE 33 38 -5 28
PRECIPITATION (IN)
YESTERDAY 0.03 1.53 1988 0.16 -0.13 0.00
MONTH TO DATE 1.41 2.04 -0.63 2.43
SINCE DEC 1 1.41 2.04 -0.63 2.43
SINCE JAN 1 34.55 43.32 -8.77 45.00
SNOWFALL (IN)
YESTERDAY T 9.2 1988 0.1 -0.1 0.0
MONTH TO DATE T 1.2 -1.2 T
SINCE DEC 1 T 1.2 -1.2 T
SINCE JUL 1 T 1.7 -1.7 T
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 32 27 5 37
MONTH TO DATE 387 334 53 360
SINCE DEC 1 387 334 53 360
SINCE JUL 1 1176 1273 -97 1050
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 21 HIGHEST WIND DIRECTION SW (220)
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION SW (220)
AVERAGE WIND SPEED 5.6
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT SNOW
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 92 1100 PM
LOWEST 55 1200 PM
AVERAGE 74
......................................................
THE ISLIP NY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 45 62 2015
MINIMUM TEMPERATURE (F) 30 5 1982
SUNRISE AND SUNSET
DECEMBER 14 2025......SUNRISE 709 AM EST SUNSET 425 PM EST
DECEMBER 15 2025......SUNRISE 710 AM EST SUNSET 426 PM EST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page