Climatological Report (Daily)
Issued by NWS Upton, NY
Issued by NWS Upton, NY
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CDUS41 KOKX 172033
CLIISP
CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK, NY
433 PM EDT FRI OCT 17 2025
...................................
...THE ISLIP NY CLIMATE SUMMARY FOR OCTOBER 17 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 65 259 PM 80 1963 64 1 58
MINIMUM 49 617 AM 34 1965 47 2 39
AVERAGE 57 55 2 49
PRECIPITATION (IN)
TODAY 0.00 1.06 1991 0.13 -0.13 0.00
MONTH TO DATE 2.07 2.17 -0.10 0.10
SINCE SEP 1 3.65 5.77 -2.12 0.34
SINCE JAN 1 27.43 36.07 -8.64 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 8 10 -2 16
MONTH TO DATE 82 127 -45 108
SINCE SEP 1 89 180 -91 126
SINCE JUL 1 89 183 -94 127
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 NW (330)
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION N (360)
AVERAGE WIND SPEED 13.5
SKY COVER
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 52 600 AM
LOWEST 33 200 PM
AVERAGE 43
..........................................................
THE ISLIP NY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 63 76 2016
MINIMUM TEMPERATURE (F) 46 31 1965
1978
1982
SUNRISE AND SUNSET
OCTOBER 17 2025.......SUNRISE 706 AM EDT SUNSET 609 PM EDT
OCTOBER 18 2025.......SUNRISE 707 AM EDT SUNSET 607 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$