Climatological Report (Daily)
Issued by NWS Upton, NY
Issued by NWS Upton, NY
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CDUS41 KOKX 210617
CLIISP
CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK, NY
117 AM EST FRI NOV 21 2025
...................................
...THE ISLIP NY CLIMATE SUMMARY FOR NOVEMBER 20 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 50 254 PM 66 1985 52 -2 59
MINIMUM 31 1155 PM 21 1986 36 -5 44
AVERAGE 41 44 -3 52
PRECIPITATION (IN)
YESTERDAY 0.00 2.63 1988 0.11 -0.11 0.00
MONTH TO DATE 1.22 2.17 -0.95 0.23
SINCE SEP 1 7.86 9.74 -1.88 0.59
SINCE JAN 1 31.64 40.04 -8.40 39.46
SNOWFALL (IN)
YESTERDAY 0.0 T 2017 0.0 0.0 0.0
MONTH TO DATE T 0.2 -0.2 0.0
SINCE SEP 1 T 0.2 -0.2 0.0
SINCE JUL 1 T 0.2 -0.2 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 24 21 3 13
MONTH TO DATE 349 357 -8 261
SINCE SEP 1 577 711 -134 483
SINCE JUL 1 577 714 -137 484
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 4
SINCE SEP 1 176 121 55 91
SINCE JAN 1 1104 885 219 1012
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 8 HIGHEST WIND DIRECTION NW (330)
HIGHEST GUST SPEED 10 HIGHEST GUST DIRECTION N (340)
AVERAGE WIND SPEED 2.7
SKY COVER
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 88 1200 AM
LOWEST 41 300 PM
AVERAGE 65
..........................................................
THE ISLIP NY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 52 65 1991
2020
MINIMUM TEMPERATURE (F) 36 18 1987
SUNRISE AND SUNSET
NOVEMBER 21 2025......SUNRISE 647 AM EST SUNSET 430 PM EST
NOVEMBER 22 2025......SUNRISE 648 AM EST SUNSET 429 PM EST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$