199
CDUS41 KOKX 202053
CLIISP
CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK, NY
453 PM EDT WED AUG 20 2025
...............................
..THE ISLIP NY CLIMATE SUMMARY FOR AUGUST 20 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 70 112 PM 94 1983 81 -11 73
MINIMUM 63 155 AM 53 2008 66 -3 57
AVERAGE 67 73 -6 65
PRECIPITATION (IN)
TODAY 0.12 2.61 2001 0.14 -0.02 T
MONTH TO DATE 0.27 2.82 -2.55 6.44
SINCE JUN 1 7.79 10.08 -2.29 11.43
SINCE JAN 1 23.52 28.88 -5.36 38.81
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 JUN 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 0 0 0
MONTH TO DATE 0 0 0 0
SINCE JUN 1 18 31 -13 0
SINCE JUL 1 0 1 -1 0
COOLING
TODAY 2 8 -6 0
MONTH TO DATE 185 189 -4 205
SINCE JUN 1 854 653 201 801
SINCE JAN 1 866 682 184 843
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION E (70)
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION E (90)
AVERAGE WIND SPEED 8.7
SKY COVER
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
LIGHT RAIN
FOG
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 1100 AM
LOWEST 67 1200 AM
AVERAGE 80
......................................................
THE ISLIP NY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 81 94 1995
MINIMUM TEMPERATURE (F) 66 47 1977
SUNRISE AND SUNSET
AUGUST 20 2025........SUNRISE 608 AM EDT SUNSET 743 PM EDT
AUGUST 21 2025........SUNRISE 609 AM EDT SUNSET 741 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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