Climatological Report (Daily)
Issued by NWS Upton, NY
Issued by NWS Upton, NY
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CDUS41 KOKX 170617
CLIISP
CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK, NY
217 AM EDT SAT MAY 17 2025
...................................
...THE ISLIP NY CLIMATE SUMMARY FOR MAY 16 2025...
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)
YESTERDAY
MAXIMUM 72 1140 AM 86 1998 68 4 65
MINIMUM 61 148 AM 39 2000 51 10 58
AVERAGE 67 60 7 62
PRECIPITATION (IN)
YESTERDAY T 4.01 1989 0.09 -0.09 0.10
MONTH TO DATE 2.26 1.64 0.62 2.85
SINCE MAR 1 9.00 10.21 -1.21 15.84
SINCE JAN 1 13.32 17.16 -3.84 25.56
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 MAR 1 0.0 7.1 -7.1 0.0
SINCE JUL 1 11.7 31.8 -20.1 10.9
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 0 6 -6 3
MONTH TO DATE 38 129 -91 125
SINCE MAR 1 1011 1369 -358 1150
SINCE JUL 1 4493 5088 -595 4489
COOLING
YESTERDAY 2 1 1 0
MONTH TO DATE 6 3 3 1
SINCE MAR 1 6 5 1 5
SINCE JAN 1 6 5 1 5
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION S (170)
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION S (180)
AVERAGE WIND SPEED 5.3
SKY COVER
AVERAGE SKY COVER 1.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
FOG
FOG W/VISIBILITY <= 1/4 MILE
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 1200 AM
LOWEST 73 1200 PM
AVERAGE 87
..........................................................
THE ISLIP NY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 69 85 1974
MINIMUM TEMPERATURE (F) 51 40 1967
1983
1984
SUNRISE AND SUNSET
MAY 17 2025...........SUNRISE 533 AM EDT SUNSET 805 PM EDT
MAY 18 2025...........SUNRISE 532 AM EDT SUNSET 806 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$