306
CDUS41 KOKX 110645
CLIISP
CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK, NY
245 AM EDT THU SEP 11 2025
...............................
..THE ISLIP NY CLIMATE SUMMARY FOR SEPTEMBER 10 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 74 254 PM 90 1983 77 -3 78
MINIMUM 64 515 AM 39 1975 61 3 56
AVERAGE 69 69 0 67
PRECIPITATION (IN)
YESTERDAY 0.01 2.75 2020 0.12 -0.11 0.00
MONTH TO DATE 1.10 1.13 -0.03 0.06
SINCE SEP 1 1.10 1.13 -0.03 0.06
SINCE JAN 1 24.88 31.43 -6.55 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 1 -1 0
MONTH TO DATE 2 3 -1 5
SINCE SEP 1 2 3 -1 5
SINCE JUL 1 2 6 -4 6
COOLING
YESTERDAY 4 5 -1 2
MONTH TO DATE 33 55 -22 25
SINCE SEP 1 33 55 -22 25
SINCE JAN 1 961 819 142 946
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WIND (MPH)
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION NE (40)
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION NE (40)
AVERAGE WIND SPEED 10.7
SKY COVER
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 87 900 AM
LOWEST 57 500 PM
AVERAGE 72
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THE ISLIP NY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 76 92 1983
MINIMUM TEMPERATURE (F) 61 45 1969
SUNRISE AND SUNSET
SEPTEMBER 11 2025.....SUNRISE 629 AM EDT SUNSET 708 PM EDT
SEPTEMBER 12 2025.....SUNRISE 630 AM EDT SUNSET 706 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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