Climatological Report (Daily)
Issued by NWS Upton, NY
Issued by NWS Upton, NY
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CDUS41 KOKX 120629
CLIISP
CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK, NY
229 AM EDT MON MAY 12 2025
...................................
...THE ISLIP NY CLIMATE SUMMARY FOR MAY 11 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 78 123 PM 83 1965 67 11 58
2001
MINIMUM 50 514 AM 34 1966 49 1 45
AVERAGE 64 58 6 52
PRECIPITATION (IN)
YESTERDAY 0.00 0.71 1967 0.10 -0.10 0.00
MONTH TO DATE 1.71 1.17 0.54 1.40
SINCE MAR 1 8.45 9.74 -1.29 14.39
SINCE JAN 1 12.77 16.69 -3.92 24.11
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 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 1 7 -6 13
MONTH TO DATE 30 96 -66 86
SINCE MAR 1 1003 1336 -333 1111
SINCE JUL 1 4485 5055 -570 4450
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 2 0 2 1
SINCE MAR 1 2 2 0 5
SINCE JAN 1 2 2 0 5
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION NW (320)
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION NW (300)
AVERAGE WIND SPEED 6.3
SKY COVER
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 74 300 AM
LOWEST 18 400 PM
AVERAGE 46
..........................................................
THE ISLIP NY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 67 87 1991
MINIMUM TEMPERATURE (F) 50 37 1969
1983
1990
SUNRISE AND SUNSET
MAY 12 2025...........SUNRISE 538 AM EDT SUNSET 800 PM EDT
MAY 13 2025...........SUNRISE 537 AM EDT SUNSET 801 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$