623
CDUS41 KOKX 190617
CLIISP
CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK, NY
217 AM EDT WED AUG 19 2026
...............................
..THE ISLIP NY CLIMATE SUMMARY FOR AUGUST 18 2026
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1963 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 85 128 PM 92 2002 81 4 78
MINIMUM 69 517 AM 52 1979 66 3 60
AVERAGE 77 74 3 69
PRECIPITATION (IN)
YESTERDAY T 1.91 2017 0.14 -0.14 T
MONTH TO DATE 3.35 2.54 0.81 0.15
SINCE JUN 1 11.78 9.80 1.98 7.67
SINCE JAN 1 27.04 28.60 -1.56 23.40
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 10 31 -21 18
SINCE JUL 1 0 1 -1 0
COOLING
YESTERDAY 12 9 3 4
MONTH TO DATE 218 172 46 180
SINCE JUN 1 718 636 82 849
SINCE JAN 1 773 665 108 861
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION S (170)
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION S (170)
AVERAGE WIND SPEED 4.3
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 200 AM
LOWEST 57 100 PM
AVERAGE 79
......................................................
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 2026........SUNRISE 607 AM EDT SUNSET 745 PM EDT
AUGUST 20 2026........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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