013
CDUS41 KOKX 160617
CLIISP
CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK, NY
217 AM EDT SUN AUG 16 2026
...............................
..THE ISLIP NY CLIMATE SUMMARY FOR AUGUST 15 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 82 351 PM 90 2016 82 0 88
MINIMUM 66 1154 PM 48 1964 66 0 74
AVERAGE 74 74 0 81
PRECIPITATION (IN)
YESTERDAY 0.00 2.01 1969 0.14 -0.14 0.00
MONTH TO DATE 2.65 2.13 0.52 0.15
SINCE JUN 1 11.08 9.39 1.69 7.67
SINCE JAN 1 26.34 28.19 -1.85 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 9 9 0 16
MONTH TO DATE 190 145 45 148
SINCE JUN 1 690 609 81 817
SINCE JAN 1 745 638 107 829
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WIND (MPH)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION NE (50)
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION NE (50)
AVERAGE WIND SPEED 5.1
SKY COVER
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 96 300 AM
LOWEST 38 300 PM
AVERAGE 67
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THE ISLIP NY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 82 90 1997
2001
2018
MINIMUM TEMPERATURE (F) 66 50 1972
SUNRISE AND SUNSET
AUGUST 16 2026........SUNRISE 604 AM EDT SUNSET 749 PM EDT
AUGUST 17 2026........SUNRISE 605 AM EDT SUNSET 748 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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