155
CDUS41 KOKX 192030
CLIISP
CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK, NY
430 PM EDT SAT SEP 19 2026
...............................
..THE ISLIP NY CLIMATE SUMMARY FOR SEPTEMBER 19 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 69 235 PM 85 1983 74 -5 85
2025
MINIMUM 62 727 AM 44 1990 58 4 61
AVERAGE 66 66 0 73
PRECIPITATION (IN)
TODAY 0.00 1.61 1972 0.13 -0.13 0.00
MONTH TO DATE 4.21 2.24 1.97 1.24
SINCE SEP 1 4.21 2.24 1.97 1.24
SINCE JAN 1 35.84 32.54 3.30 25.02
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 2 -2 0
MONTH TO DATE 3 16 -13 2
SINCE SEP 1 3 16 -13 2
SINCE JUL 1 3 19 -16 2
COOLING
TODAY 1 3 -2 8
MONTH TO DATE 111 87 24 85
SINCE SEP 1 111 87 24 85
SINCE JAN 1 984 851 133 1013
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION NE (30)
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION N (20)
AVERAGE WIND SPEED 11.0
SKY COVER
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 73 1200 AM
LOWEST 52 500 AM
AVERAGE 63
......................................................
THE ISLIP NY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 74 87 1983
MINIMUM TEMPERATURE (F) 58 38 1979
SUNRISE AND SUNSET
SEPTEMBER 19 2026.....SUNRISE 637 AM EDT SUNSET 655 PM EDT
SEPTEMBER 20 2026.....SUNRISE 638 AM EDT SUNSET 653 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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