055
CDUS41 KOKX 152043
CLIISP
CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK, NY
443 PM EDT MON SEP 15 2025
...............................
..THE ISLIP NY CLIMATE SUMMARY FOR SEPTEMBER 15 2025
VALID TODAY AS OF 0400 PM LOCAL TIME.
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1963 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
TODAY
MAXIMUM 82 220 PM 84 2008 75 7 80
MINIMUM 63 407 AM 40 1975 59 4 56
AVERAGE 73 67 6 68
PRECIPITATION (IN)
TODAY 0.00 3.12 1966 0.12 -0.12 0.00
MONTH TO DATE 1.24 1.72 -0.48 0.06
SINCE SEP 1 1.24 1.72 -0.48 0.06
SINCE JAN 1 25.02 32.02 -7.00 38.93
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 0 1 -1 0
MONTH TO DATE 2 8 -6 5
SINCE SEP 1 2 8 -6 5
SINCE JUL 1 2 11 -9 6
COOLING
TODAY 8 4 4 3
MONTH TO DATE 58 75 -17 40
SINCE SEP 1 58 75 -17 40
SINCE JAN 1 986 839 147 961
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION NE (30)
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION NE (30)
AVERAGE WIND SPEED 9.0
SKY COVER
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 500 AM
LOWEST 37 300 PM
AVERAGE 65
......................................................
THE ISLIP NY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 75 88 1998
MINIMUM TEMPERATURE (F) 59 44 1964
SUNRISE AND SUNSET
SEPTEMBER 15 2025.....SUNRISE 633 AM EDT SUNSET 701 PM EDT
SEPTEMBER 16 2025.....SUNRISE 634 AM EDT SUNSET 659 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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