517
CDUS41 KOKX 290617
CLIISP
CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK, NY
217 AM EDT MON SEP 29 2025
...............................
..THE ISLIP NY CLIMATE SUMMARY FOR SEPTEMBER 28 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 84R 146 PM 80 2015 71 13 67
MINIMUM 66 629 AM 38 1989 54 12 60
AVERAGE 75 62 13 64
PRECIPITATION (IN)
YESTERDAY 0.01 1.79 2004 0.13 -0.12 0.13
MONTH TO DATE 1.58 3.33 -1.75 0.24
SINCE SEP 1 1.58 3.33 -1.75 0.24
SINCE JAN 1 25.36 33.63 -8.27 39.11
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 4 -4 1
MONTH TO DATE 7 44 -37 16
SINCE SEP 1 7 44 -37 16
SINCE JUL 1 7 47 -40 17
COOLING
YESTERDAY 10 2 8 0
MONTH TO DATE 141 106 35 80
SINCE SEP 1 141 106 35 80
SINCE JAN 1 1069 870 199 1001
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WIND (MPH)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION S (200)
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION SW (220)
AVERAGE WIND SPEED 4.4
SKY COVER
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 90 100 AM
LOWEST 55 200 PM
AVERAGE 73
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THE ISLIP NY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 70 81 2015
MINIMUM TEMPERATURE (F) 54 39 1976
SUNRISE AND SUNSET
SEPTEMBER 29 2025.....SUNRISE 647 AM EDT SUNSET 637 PM EDT
SEPTEMBER 30 2025.....SUNRISE 648 AM EDT SUNSET 636 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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