509
CDUS41 KOKX 210617
CLIISP
CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK, NY
217 AM EDT MON APR 21 2025
...............................
..THE ISLIP NY CLIMATE SUMMARY FOR APRIL 20 2025
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)
YESTERDAY
MAXIMUM 70 307 AM 83 1976 60 10 62
MINIMUM 49 1107 PM 28 1965 43 6 46
AVERAGE 60 51 9 54
PRECIPITATION (IN)
YESTERDAY 0.00 1.01 2009 0.13 -0.13 0.18
MONTH TO DATE 1.40 2.73 -1.33 3.34
SINCE MAR 1 6.16 7.24 -1.08 12.88
SINCE JAN 1 10.48 14.19 -3.71 22.60
SNOWFALL (IN)
YESTERDAY 0.0 0.1 1983 0.0 0.0 0.0
MONTH TO DATE 0.0 0.6 -0.6 0.0
SINCE MAR 1 0.0 7.1 -7.1 0.0
SINCE JUL 1 11.7 31.8 -20.1 10.9
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 5 14 -9 11
MONTH TO DATE 304 342 -38 292
SINCE MAR 1 918 1122 -204 883
SINCE JUL 1 4400 4841 -441 4222
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 1
SINCE MAR 1 0 0 0 1
SINCE JAN 1 0 0 0 1
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 28 HIGHEST WIND DIRECTION NW (330)
HIGHEST GUST SPEED 38 HIGHEST GUST DIRECTION W (290)
AVERAGE WIND SPEED 14.1
SKY COVER
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 80 100 AM
LOWEST 19 300 PM
AVERAGE 50
......................................................
THE ISLIP NY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 61 76 1976
1996
2007
MINIMUM TEMPERATURE (F) 43 30 1965
SUNRISE AND SUNSET
APRIL 21 2025.........SUNRISE 604 AM EDT SUNSET 739 PM EDT
APRIL 22 2025.........SUNRISE 603 AM EDT SUNSET 740 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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