Climatological Report (Daily)
Issued by NWS Upton, NY
Issued by NWS Upton, NY
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890
CDUS41 KOKX 130634
CLIISP
CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK, NY
234 AM EDT SUN SEP 13 2026
...................................
...THE ISLIP NY CLIMATE SUMMARY FOR SEPTEMBER 12 2026...
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)
YESTERDAY
MAXIMUM 76 300 PM 90 2005 76 0 79
MINIMUM 57 559 AM 45 1993 60 -3 61
AVERAGE 67 68 -1 70
PRECIPITATION (IN)
YESTERDAY 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)
YESTERDAY 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
YESTERDAY 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
YESTERDAY 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 14 HIGHEST WIND DIRECTION SE (150)
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION SE (150)
AVERAGE WIND SPEED 5.4
SKY COVER
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 96 200 AM
LOWEST 50 1000 AM
AVERAGE 73
..........................................................
THE ISLIP NY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 76 89 2005
MINIMUM TEMPERATURE (F) 60 48 1973
SUNRISE AND SUNSET
SEPTEMBER 13 2026.....SUNRISE 631 AM EDT SUNSET 705 PM EDT
SEPTEMBER 14 2026.....SUNRISE 632 AM EDT SUNSET 703 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$