160
CDUS41 KOKX 210617
CLIISP
CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK, NY
217 AM EDT SUN JUN 21 2026
...............................
..THE ISLIP NY CLIMATE SUMMARY FOR JUNE 20 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 82 437 PM 93 1995 79 3 86
MINIMUM 66 1159 PM 50 1970 63 3 69
2005
AVERAGE 74 71 3 78
PRECIPITATION (IN)
YESTERDAY 0.00 0.88 1967 0.12 -0.12 0.00
MONTH TO DATE 0.38 2.92 -2.54 1.58
SINCE JUN 1 0.38 2.92 -2.54 1.58
SINCE JAN 1 15.64 21.72 -6.08 17.31
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 61.8 31.8 30.0 11.7
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 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
YESTERDAY 9 6 3 13
MONTH TO DATE 131 77 54 91
SINCE JUN 1 131 77 54 91
SINCE JAN 1 186 106 80 103
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WIND (MPH)
HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION W (290)
HIGHEST GUST SPEED 39 HIGHEST GUST DIRECTION W (290)
AVERAGE WIND SPEED 12.7
SKY COVER
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 56 300 AM
LOWEST 30 600 PM
AVERAGE 43
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THE ISLIP NY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 79 95 2012
MINIMUM TEMPERATURE (F) 63 47 1968
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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