846
CDUS41 KOKX 190625
CLIISP
CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK, NY
225 AM EDT SAT SEP 19 2026
...............................
..THE ISLIP NY CLIMATE SUMMARY FOR SEPTEMBER 18 2026
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)
YESTERDAY
MAXIMUM 80 324 PM 85 1965 74 6 83
MINIMUM 67 1159 PM 43 1986 58 9 66
1990
AVERAGE 74 66 8 75
PRECIPITATION (IN)
YESTERDAY T 1.34 2023 0.13 -0.13 T
MONTH TO DATE 4.21 2.11 2.10 1.24
SINCE SEP 1 4.21 2.11 2.10 1.24
SINCE JAN 1 35.84 32.41 3.43 25.02
SNOWFALL (IN)
YESTERDAY 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
YESTERDAY 0 2 -2 0
MONTH TO DATE 3 14 -11 2
SINCE SEP 1 3 14 -11 2
SINCE JUL 1 3 17 -14 2
COOLING
YESTERDAY 9 3 6 10
MONTH TO DATE 110 84 26 77
SINCE SEP 1 110 84 26 77
SINCE JAN 1 983 848 135 1005
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION N (340)
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION NW (330)
AVERAGE WIND SPEED 8.4
SKY COVER
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 300 AM
LOWEST 47 300 PM
AVERAGE 70
......................................................
THE ISLIP NY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 74 85 1983
2025
MINIMUM TEMPERATURE (F) 58 44 1990
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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