325
CDUS41 KOKX 182039
CLIISP
CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK, NY
439 PM EDT SAT APR 18 2026
...............................
..THE ISLIP NY CLIMATE SUMMARY FOR APRIL 18 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 60 204 PM 89 2002 59 1 62
MINIMUM 48 424 AM 31 1980 42 6 34
AVERAGE 54 51 3 48
PRECIPITATION (IN)
TODAY 0.00 0.92 1969 0.13 -0.13 0.00
MONTH TO DATE 0.35 2.46 -2.11 1.40
SINCE MAR 1 4.54 6.97 -2.43 6.16
SINCE JAN 1 10.78 13.92 -3.14 10.48
SNOWFALL (IN)
TODAY 0.0 T 1983 0.0 0.0 0.0
1997
2001
MONTH TO DATE 0.0 0.5 -0.5 0.0
SINCE MAR 1 0.2 7.0 -6.8 0.0
SINCE JUL 1 61.8 31.7 30.1 11.7
SNOW DEPTH 0
DEGREE DAYS
HEATING
TODAY 11 14 -3 17
MONTH TO DATE 237 314 -77 299
SINCE MAR 1 954 1094 -140 913
SINCE JUL 1 4810 4813 -3 4395
COOLING
TODAY 0 0 0 0
MONTH TO DATE 11 0 11 0
SINCE MAR 1 11 0 11 0
SINCE JAN 1 11 0 11 0
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION NE (60)
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION NE (60)
AVERAGE WIND SPEED 7.6
SKY COVER
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 200 AM
LOWEST 72 300 PM
AVERAGE 85
......................................................
THE ISLIP NY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 60 82 1985
MINIMUM TEMPERATURE (F) 42 27 1965
SUNRISE AND SUNSET
APRIL 18 2026.........SUNRISE 609 AM EDT SUNSET 735 PM EDT
APRIL 19 2026.........SUNRISE 607 AM EDT SUNSET 736 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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