639
CDUS41 KOKX 210617
CLIISP
CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK, NY
217 AM EDT TUE OCT 21 2025
...............................
..THE ISLIP NY CLIMATE SUMMARY FOR OCTOBER 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 68 433 AM 77 2021 63 5 76
MINIMUM 56 1152 PM 30 1974 46 10 44
AVERAGE 62 54 8 60
PRECIPITATION (IN)
YESTERDAY 0.12 3.90 1989 0.13 -0.01 0.00
MONTH TO DATE 2.19 2.57 -0.38 0.10
SINCE SEP 1 3.77 6.17 -2.40 0.34
SINCE JAN 1 27.55 36.47 -8.92 39.21
SNOWFALL (IN)
YESTERDAY 0.0 MM MM 0.0 0.0 0.0
MONTH TO DATE 0.0 0.0 0.0 0.0
SINCE SEP 1 0.0 0.0 0.0 0.0
SINCE JUL 1 0.0 0.0 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 3 11 -8 5
MONTH TO DATE 100 159 -59 132
SINCE SEP 1 107 212 -105 150
SINCE JUL 1 107 215 -108 151
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 20 10 10 3
SINCE SEP 1 176 118 58 83
SINCE JAN 1 1104 882 222 1004
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WIND (MPH)
HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION SE (150)
HIGHEST GUST SPEED 37 HIGHEST GUST DIRECTION S (180)
AVERAGE WIND SPEED 15.1
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 90 300 AM
LOWEST 50 300 PM
AVERAGE 70
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THE ISLIP NY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 62 77 2024
MINIMUM TEMPERATURE (F) 45 29 1974
SUNRISE AND SUNSET
OCTOBER 21 2025.......SUNRISE 711 AM EDT SUNSET 603 PM EDT
OCTOBER 22 2025.......SUNRISE 712 AM EDT SUNSET 601 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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