430
CDUS41 KOKX 260622
CLIISP
CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK, NY
222 AM EDT FRI SEP 26 2025
...............................
..THE ISLIP NY CLIMATE SUMMARY FOR SEPTEMBER 25 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 77 1045 AM 87 2010 72 5 68
MINIMUM 71 113 AM 38 1963 56 15 57
AVERAGE 74 64 10 63
PRECIPITATION (IN)
YESTERDAY 0.23 1.69 1975 0.12 0.11 T
MONTH TO DATE 1.54 2.96 -1.42 0.06
SINCE SEP 1 1.54 2.96 -1.42 0.06
SINCE JAN 1 25.32 33.26 -7.94 38.93
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 0 3 -3 2
MONTH TO DATE 7 32 -25 15
SINCE SEP 1 7 32 -25 15
SINCE JUL 1 7 35 -28 16
COOLING
YESTERDAY 9 2 7 0
MONTH TO DATE 112 100 12 72
SINCE SEP 1 112 100 12 72
SINCE JAN 1 1040 864 176 993
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION S (190)
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION S (180)
AVERAGE WIND SPEED 11.9
SKY COVER
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 200 AM
LOWEST 87 500 PM
AVERAGE 92
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THE ISLIP NY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 71 85 1970
MINIMUM TEMPERATURE (F) 55 40 1963
1987
SUNRISE AND SUNSET
SEPTEMBER 26 2025.....SUNRISE 644 AM EDT SUNSET 642 PM EDT
SEPTEMBER 27 2025.....SUNRISE 645 AM EDT SUNSET 641 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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