062
CDUS41 KOKX 200617
CLIISP
CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK, NY
217 AM EDT WED MAY 20 2026
...............................
..THE ISLIP NY CLIMATE SUMMARY FOR MAY 19 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 81 142 PM 89 2017 69 12 72
MINIMUM 63 526 AM 37 2002 52 11 51
AVERAGE 72 60 12 62
PRECIPITATION (IN)
YESTERDAY 0.00 2.33 1966 0.10 -0.10 0.00
MONTH TO DATE 0.70 1.93 -1.23 2.27
SINCE MAR 1 7.04 10.50 -3.46 9.01
SINCE JAN 1 13.28 17.45 -4.17 13.33
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 0.2 7.1 -6.9 0.0
SINCE JUL 1 61.8 31.8 30.0 11.7
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 0 5 -5 3
MONTH TO DATE 138 146 -8 41
SINCE MAR 1 1288 1386 -98 1014
SINCE JUL 1 5144 5105 39 4496
COOLING
YESTERDAY 7 1 6 0
MONTH TO DATE 19 6 13 12
SINCE MAR 1 30 8 22 12
SINCE JAN 1 30 8 22 12
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION SW (210)
HIGHEST GUST SPEED 31 HIGHEST GUST DIRECTION SW (210)
AVERAGE WIND SPEED 9.6
SKY COVER
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 87 400 AM
LOWEST 64 200 PM
AVERAGE 76
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THE ISLIP NY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 69 98 1996
MINIMUM TEMPERATURE (F) 52 35 1992
SUNRISE AND SUNSET
MAY 20 2026...........SUNRISE 531 AM EDT SUNSET 808 PM EDT
MAY 21 2026...........SUNRISE 530 AM EDT SUNSET 809 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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