536
CDUS41 KOKX 252039
CLIISP
CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK, NY
439 PM EDT FRI SEP 25 2026
...............................
..THE ISLIP NY CLIMATE SUMMARY FOR SEPTEMBER 25 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 66 259 PM 87 2010 72 -6 77
MINIMUM 55 136 AM 38 1963 56 -1 71
AVERAGE 61 64 -3 74
PRECIPITATION (IN)
TODAY 0.00 1.69 1975 0.12 -0.12 0.23
MONTH TO DATE 4.72 2.96 1.76 1.54
SINCE SEP 1 4.72 2.96 1.76 1.54
SINCE JAN 1 36.35 33.26 3.09 25.32
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 4 3 1 0
MONTH TO DATE 16 32 -16 7
SINCE SEP 1 16 32 -16 7
SINCE JUL 1 16 35 -19 7
COOLING
TODAY 0 2 -2 9
MONTH TO DATE 111 100 11 112
SINCE SEP 1 111 100 11 112
SINCE JAN 1 984 864 120 1040
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 30 HIGHEST WIND DIRECTION N (20)
HIGHEST GUST SPEED 43 HIGHEST GUST DIRECTION NE (30)
AVERAGE WIND SPEED 20.3
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 62 700 AM
LOWEST 47 200 PM
AVERAGE 55
......................................................
THE ISLIP NY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 71 85 1970
2025
MINIMUM TEMPERATURE (F) 55 40 1963
1987
SUNRISE AND SUNSET
SEPTEMBER 25 2026.....SUNRISE 643 AM EDT SUNSET 644 PM EDT
SEPTEMBER 26 2026.....SUNRISE 644 AM EDT SUNSET 643 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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