Climatological Report (Daily)
Issued by NWS Upton, NY
Issued by NWS Upton, NY
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CDUS41 KOKX 202114
CLIISP
CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK, NY
514 PM EDT SUN SEP 20 2026
...................................
...THE ISLIP NY CLIMATE SUMMARY FOR SEPTEMBER 20 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 67 259 PM 87 1983 74 -7 75
MINIMUM 60 418 AM 38 1979 58 2 57
AVERAGE 64 66 -2 66
PRECIPITATION (IN)
TODAY 0.24 0.96 1988 0.12 0.12 0.00
MONTH TO DATE 4.45 2.36 2.09 1.24
SINCE SEP 1 4.45 2.36 2.09 1.24
SINCE JAN 1 36.08 32.66 3.42 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 1 2 -1 0
MONTH TO DATE 4 18 -14 2
SINCE SEP 1 4 18 -14 2
SINCE JUL 1 4 21 -17 2
COOLING
TODAY 0 3 -3 1
MONTH TO DATE 111 90 21 86
SINCE SEP 1 111 90 21 86
SINCE JAN 1 984 854 130 1014
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION SE (120)
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION S (160)
AVERAGE WIND SPEED 9.0
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 1200 PM
LOWEST 72 300 AM
AVERAGE 85
..........................................................
THE ISLIP NY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 73 84 1980
MINIMUM TEMPERATURE (F) 57 43 1973
1991
SUNRISE AND SUNSET
SEPTEMBER 20 2026.....SUNRISE 638 AM EDT SUNSET 653 PM EDT
SEPTEMBER 21 2026.....SUNRISE 639 AM EDT SUNSET 651 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$