674
CDUS41 KOKX 212036
CLIISP
CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK, NY
436 PM EDT SUN JUN 21 2026
...............................
..THE ISLIP NY CLIMATE SUMMARY FOR JUNE 21 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 82 1222 PM 95 2012 79 3 86
MINIMUM 58 444 AM 47 1968 63 -5 68
AVERAGE 70 71 -1 77
PRECIPITATION (IN)
TODAY 0.00 0.96 2003 0.12 -0.12 0.00
2018
MONTH TO DATE 0.38 3.04 -2.66 1.58
SINCE JUN 1 0.38 3.04 -2.66 1.58
SINCE JAN 1 15.64 21.84 -6.20 17.31
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 61.8 31.8 30.0 11.7
SNOW DEPTH 0
DEGREE DAYS
HEATING
TODAY 0 0 0 0
MONTH TO DATE 10 27 -17 18
SINCE JUN 1 10 27 -17 18
SINCE JUL 1 5205 5182 23 4586
COOLING
TODAY 5 6 -1 12
MONTH TO DATE 136 83 53 103
SINCE JUN 1 136 83 53 103
SINCE JAN 1 191 112 79 115
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION SW (210)
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION NW (330)
AVERAGE WIND SPEED 5.9
SKY COVER
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 75 500 AM
LOWEST 33 1200 PM
AVERAGE 54
......................................................
THE ISLIP NY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 79 94 2012
MINIMUM TEMPERATURE (F) 63 51 1992
SUNRISE AND SUNSET
JUNE 21 2026..........SUNRISE 521 AM EDT SUNSET 827 PM EDT
JUNE 22 2026..........SUNRISE 521 AM EDT SUNSET 828 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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