949
CDUS41 KOKX 110619
CLIISP
CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK, NY
219 AM EDT FRI SEP 11 2026
...............................
..THE ISLIP NY CLIMATE SUMMARY FOR SEPTEMBER 10 2026
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1963 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 86 356 PM 90 1983 77 9 74
MINIMUM 70 511 AM 39 1975 61 9 64
AVERAGE 78 69 9 69
PRECIPITATION (IN)
YESTERDAY 0.03 2.75 2020 0.12 -0.09 0.01
MONTH TO DATE 1.15 1.13 0.02 1.10
SINCE SEP 1 1.15 1.13 0.02 1.10
SINCE JAN 1 32.78 31.43 1.35 24.88
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 0 3 -3 2
SINCE SEP 1 0 3 -3 2
SINCE JUL 1 0 6 -6 2
COOLING
YESTERDAY 13 5 8 4
MONTH TO DATE 75 55 20 33
SINCE SEP 1 75 55 20 33
SINCE JAN 1 948 819 129 961
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION SW (220)
HIGHEST GUST SPEED 31 HIGHEST GUST DIRECTION SW (220)
AVERAGE WIND SPEED 9.3
SKY COVER
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 90 900 PM
LOWEST 46 400 PM
AVERAGE 68
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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 2026.....SUNRISE 629 AM EDT SUNSET 708 PM EDT
SEPTEMBER 12 2026.....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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