Climatological Report (Daily)
Issued by NWS Upton, NY
Issued by NWS Upton, NY
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CDUS41 KOKX 222031
CLIISP
CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK, NY
431 PM EDT MON SEP 22 2025
...................................
...THE ISLIP NY CLIMATE SUMMARY FOR SEPTEMBER 22 2025...
VALID TODAY AS OF 0400 PM LOCAL TIME.
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)
TODAY
MAXIMUM 74 145 PM 91 1980 73 1 73
MINIMUM 51 457 AM 38 1997 57 -6 58
AVERAGE 63 65 -2 66
PRECIPITATION (IN)
TODAY 0.00 1.32 1994 0.12 -0.12 0.00
MONTH TO DATE 1.24 2.61 -1.37 0.06
SINCE SEP 1 1.24 2.61 -1.37 0.06
SINCE JAN 1 25.02 32.91 -7.89 38.93
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 2 3 -1 0
MONTH TO DATE 7 23 -16 5
SINCE SEP 1 7 23 -16 5
SINCE JUL 1 7 26 -19 6
COOLING
TODAY 0 2 -2 1
MONTH TO DATE 86 94 -8 72
SINCE SEP 1 86 94 -8 72
SINCE JAN 1 1014 858 156 993
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION S (200)
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION S (160)
AVERAGE WIND SPEED 4.2
SKY COVER
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 600 AM
LOWEST 57 200 PM
AVERAGE 75
..........................................................
THE ISLIP NY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 72 88 1970
1980
MINIMUM TEMPERATURE (F) 56 40 1976
SUNRISE AND SUNSET
SEPTEMBER 22 2025.....SUNRISE 640 AM EDT SUNSET 649 PM EDT
SEPTEMBER 23 2025.....SUNRISE 641 AM EDT SUNSET 647 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$