780
CDUS41 KOKX 112135
CLIISP
CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK, NY
435 PM EST THU DEC 11 2025
...............................
..THE ISLIP NY CLIMATE SUMMARY FOR DECEMBER 11 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 43 1221 AM 65 1971 46 -3 60
MINIMUM 33 1053 AM 5 1968 31 2 42
AVERAGE 38 38 0 51
PRECIPITATION (IN)
TODAY 0.00 2.65 1992 0.15 -0.15 1.56
MONTH TO DATE 1.38 1.72 -0.34 2.43
SINCE DEC 1 1.38 1.72 -0.34 2.43
SINCE JAN 1 34.52 43.00 -8.48 45.00
SNOWFALL (IN)
TODAY 0.0 1.9 2019 0.1 -0.1 0.0
MONTH TO DATE T 0.9 -0.9 T
SINCE DEC 1 T 0.9 -0.9 T
SINCE JUL 1 T 1.4 -1.4 T
SNOW DEPTH 0
DEGREE DAYS
HEATING
TODAY 27 27 0 14
MONTH TO DATE 320 280 40 294
SINCE DEC 1 320 280 40 294
SINCE JUL 1 1109 1219 -110 984
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 30 HIGHEST WIND DIRECTION NW (310)
HIGHEST GUST SPEED 45 HIGHEST GUST DIRECTION NW (300)
AVERAGE WIND SPEED 17.5
SKY COVER
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 79 1200 AM
LOWEST 32 100 PM
AVERAGE 56
......................................................
THE ISLIP NY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 45 68 2015
MINIMUM TEMPERATURE (F) 31 7 1988
SUNRISE AND SUNSET
DECEMBER 11 2025......SUNRISE 707 AM EST SUNSET 425 PM EST
DECEMBER 12 2025......SUNRISE 707 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.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page