751
CDUS41 KOKX 172050
CLIISP
CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK, NY
450 PM EDT THU SEP 17 2026
...............................
..THE ISLIP NY CLIMATE SUMMARY FOR SEPTEMBER 17 2026
VALID TODAY AS OF 0400 PM LOCAL TIME.
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)
TODAY
MAXIMUM 80 1218 PM 87 1991 75 5 74
MINIMUM 66 558 AM 45 1986 59 7 64
AVERAGE 73 67 6 69
PRECIPITATION (IN)
TODAY 0.00 2.85 1996 0.13 -0.13 T
MONTH TO DATE 4.21 1.98 2.23 1.24
SINCE SEP 1 4.21 1.98 2.23 1.24
SINCE JAN 1 35.84 32.28 3.56 25.02
SNOWFALL (IN)
TODAY 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
TODAY 0 2 -2 0
MONTH TO DATE 3 12 -9 2
SINCE SEP 1 3 12 -9 2
SINCE JUL 1 3 15 -12 2
COOLING
TODAY 8 3 5 4
MONTH TO DATE 101 81 20 67
SINCE SEP 1 101 81 20 67
SINCE JAN 1 974 845 129 995
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION S (200)
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION SW (210)
AVERAGE WIND SPEED 6.8
SKY COVER
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 500 AM
LOWEST 62 1200 PM
AVERAGE 81
......................................................
THE ISLIP NY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 74 85 1965
MINIMUM TEMPERATURE (F) 58 43 1986
1990
SUNRISE AND SUNSET
SEPTEMBER 17 2026.....SUNRISE 635 AM EDT SUNSET 658 PM EDT
SEPTEMBER 18 2026.....SUNRISE 636 AM EDT SUNSET 656 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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