Climatological Report (Daily)
Issued by NWS Upton, NY

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343
CDUS41 KOKX 140618
CLIISP

CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK, NY
218 AM EDT WED MAY 14 2025

...................................

...THE ISLIP NY CLIMATE SUMMARY FOR MAY 13 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   1225 PM  81    2023  68      2       64
  MINIMUM         57    501 AM  37    2005  50      7       42
  AVERAGE         64                        59      5       53

PRECIPITATION (IN)
  YESTERDAY        0.12          1.32 2017   0.09   0.03     0.00
  MONTH TO DATE    1.83                      1.36   0.47     1.40
  SINCE MAR 1      8.57                      9.93  -1.36    14.39
  SINCE JAN 1     12.89                     16.88  -3.99    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       12
  MONTH TO DATE   37                       110    -73      112
  SINCE MAR 1   1010                      1350   -340     1137
  SINCE JUL 1   4492                      5069   -577     4476

 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    15   HIGHEST WIND DIRECTION    SE (130)
  HIGHEST GUST SPEED    20   HIGHEST GUST DIRECTION     E (100)
  AVERAGE WIND SPEED     7.1


SKY COVER
  AVERAGE SKY COVER 0.8


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  RAIN
  LIGHT RAIN
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    93           600 AM
 LOWEST     70          1200 PM
 AVERAGE    82

..........................................................


THE ISLIP NY CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   68        86      1991
 MINIMUM TEMPERATURE (F)   50        34      1987
                                             1996
                                             1998


SUNRISE AND SUNSET
MAY 14 2025...........SUNRISE   536 AM EDT   SUNSET   802 PM EDT
MAY 15 2025...........SUNRISE   535 AM EDT   SUNSET   803 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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