592
CDUS41 KOKX 190628
CLIISP
CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK, NY
228 AM EDT TUE AUG 19 2025
...............................
..THE ISLIP NY CLIMATE SUMMARY FOR AUGUST 18 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 78 100 AM 92 2002 81 -3 77
MINIMUM 60 1159 PM 52 1979 66 -6 69
AVERAGE 69 74 -5 73
PRECIPITATION (IN)
YESTERDAY T 1.91 2017 0.14 -0.14 1.44
MONTH TO DATE 0.15 2.54 -2.39 5.91
SINCE JUN 1 7.67 9.80 -2.13 10.90
SINCE JAN 1 23.40 28.60 -5.20 38.28
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 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
YESTERDAY 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
YESTERDAY 4 9 -5 8
MONTH TO DATE 180 172 8 194
SINCE JUN 1 849 636 213 790
SINCE JAN 1 861 665 196 832
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WIND (MPH)
HIGHEST WIND SPEED 24 HIGHEST WIND DIRECTION NE (30)
HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION NE (30)
AVERAGE WIND SPEED 10.6
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 88 200 AM
LOWEST 57 300 PM
AVERAGE 73
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THE ISLIP NY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 81 91 2002
MINIMUM TEMPERATURE (F) 66 54 1968
SUNRISE AND SUNSET
AUGUST 19 2025........SUNRISE 607 AM EDT SUNSET 744 PM EDT
AUGUST 20 2025........SUNRISE 608 AM EDT SUNSET 743 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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