401
CDUS41 KOKX 212038
CLIISP
CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK, NY
438 PM EDT WED OCT 21 2026
...............................
..THE ISLIP NY CLIMATE SUMMARY FOR OCTOBER 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 61 245 PM 77 2024 62 -1 66
MINIMUM 50 646 AM 29 1974 45 5 48
AVERAGE 56 54 2 57
PRECIPITATION (IN)
TODAY 0.00 1.51 1995 0.13 -0.13 T
MONTH TO DATE 1.98 2.70 -0.72 2.19
SINCE SEP 1 10.74 6.30 4.44 3.77
SINCE JAN 1 42.37 36.60 5.77 27.55
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 SEP 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 9 11 -2 8
MONTH TO DATE 129 170 -41 108
SINCE SEP 1 159 223 -64 115
SINCE JUL 1 159 226 -67 115
COOLING
TODAY 0 0 0 0
MONTH TO DATE 16 10 6 20
SINCE SEP 1 127 118 9 176
SINCE JAN 1 1000 882 118 1104
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION N (20)
HIGHEST GUST SPEED 37 HIGHEST GUST DIRECTION NE (30)
AVERAGE WIND SPEED 16.3
SKY COVER
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 66 600 AM
LOWEST 47 300 PM
AVERAGE 57
......................................................
THE ISLIP NY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 62 82 2024
MINIMUM TEMPERATURE (F) 45 27 1974
SUNRISE AND SUNSET
OCTOBER 21 2026.......SUNRISE 710 AM EDT SUNSET 603 PM EDT
OCTOBER 22 2026.......SUNRISE 711 AM EDT SUNSET 602 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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