Climatological Report (Daily)
Issued by NWS Upton, NY
Issued by NWS Upton, NY
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853
CDUS41 KOKX 112047
CLIISP
CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK, NY
447 PM EDT SAT OCT 11 2025
...................................
...THE ISLIP NY CLIMATE SUMMARY FOR OCTOBER 11 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 71 1151 AM 78 1990 66 5 69
MINIMUM 58 130 AM 31 1993 49 9 40
AVERAGE 65 57 8 55
PRECIPITATION (IN)
TODAY T 2.47 2006 0.12 -0.12 0.00
MONTH TO DATE 0.25 1.41 -1.16 0.10
SINCE SEP 1 1.83 5.01 -3.18 0.34
SINCE JAN 1 25.61 35.31 -9.70 39.21
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 8 -8 10
MONTH TO DATE 44 72 -28 45
SINCE SEP 1 51 125 -74 63
SINCE JUL 1 51 128 -77 64
COOLING
TODAY 0 0 0 0
MONTH TO DATE 20 10 10 3
SINCE SEP 1 176 118 58 83
SINCE JAN 1 1104 882 222 1004
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION SE (140)
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION SE (130)
AVERAGE WIND SPEED 7.9
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 78 700 AM
LOWEST 61 1100 AM
AVERAGE 70
..........................................................
THE ISLIP NY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 66 80 1995
MINIMUM TEMPERATURE (F) 49 28 1964
SUNRISE AND SUNSET
OCTOBER 11 2025.......SUNRISE 700 AM EDT SUNSET 618 PM EDT
OCTOBER 12 2025.......SUNRISE 701 AM EDT SUNSET 616 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$