Climatological Report (Daily)
Issued by NWS Upton, NY
Issued by NWS Upton, NY
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CDUS41 KOKX 122045
CLIISP
CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK, NY
445 PM EDT SAT SEP 12 2026
...................................
...THE ISLIP NY CLIMATE SUMMARY FOR SEPTEMBER 12 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 76 259 PM 90 2005 76 0 79
MINIMUM 57 559 AM 45 1993 60 -3 61
AVERAGE 67 68 -1 70
PRECIPITATION (IN)
TODAY 0.00 3.00 1978 0.12 -0.12 0.00
MONTH TO DATE 1.15 1.36 -0.21 1.10
SINCE SEP 1 1.15 1.36 -0.21 1.10
SINCE JAN 1 32.78 31.66 1.12 24.88
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 1 -1 0
MONTH TO DATE 0 5 -5 2
SINCE SEP 1 0 5 -5 2
SINCE JUL 1 0 8 -8 2
COOLING
TODAY 2 4 -2 5
MONTH TO DATE 82 63 19 42
SINCE SEP 1 82 63 19 42
SINCE JAN 1 955 827 128 970
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION SE (150)
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION S (170)
AVERAGE WIND SPEED 4.5
SKY COVER
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 96 200 AM
LOWEST 50 1000 AM
AVERAGE 73
..........................................................
THE ISLIP NY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 76 89 2005
MINIMUM TEMPERATURE (F) 60 48 1973
SUNRISE AND SUNSET
SEPTEMBER 12 2026.....SUNRISE 630 AM EDT SUNSET 706 PM EDT
SEPTEMBER 13 2026.....SUNRISE 631 AM EDT SUNSET 705 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$