Climatological Report (Daily)
Issued by NWS Upton, NY

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342
CDUS41 KOKX 050633
CLIISP

CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK, NY
133 AM EST FRI DEC 05 2025

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

...THE ISLIP NY CLIMATE SUMMARY FOR DECEMBER 4 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         45    257 PM  73    1998  48     -3       46
  MINIMUM         26   1159 PM  13    1966  33     -7       21
  AVERAGE         36                        40     -4       34

PRECIPITATION (IN)
  YESTERDAY        0.00          2.45 1964   0.16  -0.16     0.13
  MONTH TO DATE    1.33                      0.61   0.72     0.13
  SINCE DEC 1      1.33                      0.61   0.72     0.13
  SINCE JAN 1     34.47                     41.89  -7.42    42.70

SNOWFALL (IN)
  YESTERDAY        0.0           1.8  2005   0.0    0.0      0.0
  MONTH TO DATE    0.0                       0.2   -0.2       T
  SINCE DEC 1      0.0                       0.2   -0.2       T
  SINCE JUL 1      T                         0.7   -0.7       T
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       29                        25      4       31
  MONTH TO DATE  112                        98     14      131
  SINCE DEC 1    112                        98     14      131
  SINCE JUL 1    901                      1037   -136      821

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE DEC 1      0                         0      0        0
  SINCE JAN 1   1104                       885    219     1012
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    28   HIGHEST WIND DIRECTION    NW (320)
  HIGHEST GUST SPEED    42   HIGHEST GUST DIRECTION    NW (320)
  AVERAGE WIND SPEED    12.5


SKY COVER
  AVERAGE SKY COVER 0.3


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  NO SIGNIFICANT WEATHER WAS OBSERVED.


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    75          1200 AM
 LOWEST     34           900 PM
 AVERAGE    55

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


THE ISLIP NY CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   47        70      2001
 MINIMUM TEMPERATURE (F)   32        13      1966


SUNRISE AND SUNSET
DECEMBER  5 2025......SUNRISE   701 AM EST   SUNSET   425 PM EST
DECEMBER  6 2025......SUNRISE   702 AM EST   SUNSET   425 PM EST


-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.




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