692
CDUS41 KOKX 300631
CLIISP
CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK, NY
231 AM EDT TUE SEP 30 2025
...............................
..THE ISLIP NY CLIMATE SUMMARY FOR SEPTEMBER 29 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 79 209 PM 81 2015 70 9 65
MINIMUM 65 1118 PM 39 1976 54 11 60
AVERAGE 72 62 10 63
PRECIPITATION (IN)
YESTERDAY 0.00 2.15 2023 0.13 -0.13 0.00
MONTH TO DATE 1.58 3.46 -1.88 0.24
SINCE SEP 1 1.58 3.46 -1.88 0.24
SINCE JAN 1 25.36 33.76 -8.40 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 2
MONTH TO DATE 7 48 -41 18
SINCE SEP 1 7 48 -41 18
SINCE JUL 1 7 51 -44 19
COOLING
YESTERDAY 7 1 6 0
MONTH TO DATE 148 107 41 80
SINCE SEP 1 148 107 41 80
SINCE JAN 1 1076 871 205 1001
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WIND (MPH)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION NE (40)
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION NE (50)
AVERAGE WIND SPEED 5.1
SKY COVER
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 90 1200 AM
LOWEST 36 100 PM
AVERAGE 63
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THE ISLIP NY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 70 82 1986
MINIMUM TEMPERATURE (F) 53 40 1992
2000
SUNRISE AND SUNSET
SEPTEMBER 30 2025.....SUNRISE 648 AM EDT SUNSET 636 PM EDT
OCTOBER 1 2025.......SUNRISE 649 AM EDT SUNSET 634 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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