830
CDUS41 KOKX 122031
CLIISP
CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK, NY
431 PM EDT TUE MAY 12 2026
...............................
..THE ISLIP NY CLIMATE SUMMARY FOR MAY 12 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 65 153 PM 87 1991 67 -2 69
MINIMUM 46 507 AM 37 1969 50 -4 49
1983
1990
AVERAGE 56 58 -2 59
PRECIPITATION (IN)
TODAY 0.00 1.74 2006 0.10 -0.10 0.00
MONTH TO DATE 0.66 1.27 -0.61 1.71
SINCE MAR 1 7.00 9.84 -2.84 8.45
SINCE JAN 1 13.24 16.79 -3.55 12.77
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 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
TODAY 9 7 2 6
MONTH TO DATE 115 103 12 36
SINCE MAR 1 1265 1343 -78 1009
SINCE JUL 1 5121 5062 59 4491
COOLING
TODAY 0 0 0 0
MONTH TO DATE 0 0 0 2
SINCE MAR 1 11 2 9 2
SINCE JAN 1 11 2 9 2
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION N (350)
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION N (350)
AVERAGE WIND SPEED 10.4
SKY COVER
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 66 300 AM
LOWEST 24 200 PM
AVERAGE 45
......................................................
THE ISLIP NY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 68 81 2023
MINIMUM TEMPERATURE (F) 50 37 2005
SUNRISE AND SUNSET
MAY 12 2026...........SUNRISE 538 AM EDT SUNSET 800 PM EDT
MAY 13 2026...........SUNRISE 537 AM EDT SUNSET 801 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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