410
CDUS41 KOKX 180617
CLIISP
CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK, NY
217 AM EDT SUN MAY 18 2025
...............................
..THE ISLIP NY CLIMATE SUMMARY FOR MAY 17 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 75 321 PM 85 1974 69 6 74
MINIMUM 61 117 AM 40 1967 51 10 56
1983
1984
AVERAGE 68 60 8 65
PRECIPITATION (IN)
YESTERDAY 0.01 1.94 1990 0.10 -0.09 0.00
MONTH TO DATE 2.27 1.74 0.53 2.85
SINCE MAR 1 9.01 10.31 -1.30 15.84
SINCE JAN 1 13.33 17.26 -3.93 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 0
MONTH TO DATE 38 135 -97 125
SINCE MAR 1 1011 1375 -364 1150
SINCE JUL 1 4493 5094 -601 4489
COOLING
YESTERDAY 3 1 2 0
MONTH TO DATE 9 4 5 1
SINCE MAR 1 9 6 3 5
SINCE JAN 1 9 6 3 5
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION N (340)
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION N (340)
AVERAGE WIND SPEED 8.5
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
FOG
FOG W/VISIBILITY <= 1/4 MILE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 300 AM
LOWEST 55 1000 PM
AVERAGE 78
......................................................
THE ISLIP NY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 69 89 1977
2017
MINIMUM TEMPERATURE (F) 51 38 2003
2023
SUNRISE AND SUNSET
MAY 18 2025...........SUNRISE 532 AM EDT SUNSET 806 PM EDT
MAY 19 2025...........SUNRISE 531 AM EDT SUNSET 807 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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