374
CDUS41 KOKX 252036
CLIISP
CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK, NY
436 PM EDT THU SEP 25 2025
...............................
..THE ISLIP NY CLIMATE SUMMARY FOR SEPTEMBER 25 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 77 1045 AM 87 2010 72 5 68
MINIMUM 71 113 AM 38 1963 56 15 57
AVERAGE 74 64 10 63
PRECIPITATION (IN)
TODAY 0.23 1.69 1975 0.12 0.11 T
MONTH TO DATE 1.54 2.96 -1.42 0.06
SINCE SEP 1 1.54 2.96 -1.42 0.06
SINCE JAN 1 25.32 33.26 -7.94 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 3 -3 2
MONTH TO DATE 7 32 -25 15
SINCE SEP 1 7 32 -25 15
SINCE JUL 1 7 35 -28 16
COOLING
TODAY 9 2 7 0
MONTH TO DATE 112 100 12 72
SINCE SEP 1 112 100 12 72
SINCE JAN 1 1040 864 176 993
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION S (160)
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION S (170)
AVERAGE WIND SPEED 10.4
SKY COVER
AVERAGE SKY COVER 1.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 200 AM
LOWEST 88 900 AM
AVERAGE 93
......................................................
THE ISLIP NY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 71 85 1970
MINIMUM TEMPERATURE (F) 55 40 1963
1987
SUNRISE AND SUNSET
SEPTEMBER 25 2025.....SUNRISE 643 AM EDT SUNSET 644 PM EDT
SEPTEMBER 26 2025.....SUNRISE 644 AM EDT SUNSET 642 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page