020
CDUS41 KOKX 202037
CLIISP
CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK, NY
437 PM EDT MON JUL 20 2026
...............................
..THE ISLIP NY CLIMATE SUMMARY FOR JULY 20 2026
VALID TODAY AS OF 0400 PM LOCAL TIME.
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)
TODAY
MAXIMUM 78 220 PM 97 1991 83 -5 88
2019
MINIMUM 60 450 AM 52 1996 68 -8 76
AVERAGE 69 76 -7 82
PRECIPITATION (IN)
TODAY 0.00 0.83 1981 0.10 -0.10 T
MONTH TO DATE 5.27 1.98 3.29 2.60
SINCE JUN 1 6.09 5.98 0.11 4.48
SINCE JAN 1 21.35 24.78 -3.43 20.21
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 10 30 -20 18
SINCE JUL 1 0 0 0 0
COOLING
TODAY 4 10 -6 17
MONTH TO DATE 217 195 22 270
SINCE JUN 1 417 347 70 510
SINCE JAN 1 472 376 96 522
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION SE (150)
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION SE (140)
AVERAGE WIND SPEED 6.8
SKY COVER
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 81 200 AM
LOWEST 36 100 PM
AVERAGE 59
......................................................
THE ISLIP NY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 83 101 1991
MINIMUM TEMPERATURE (F) 68 52 1974
SUNRISE AND SUNSET
JULY 20 2026..........SUNRISE 538 AM EDT SUNSET 819 PM EDT
JULY 21 2026..........SUNRISE 539 AM EDT SUNSET 818 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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