Climatological Report (Daily)
Issued by NWS Upton, NY

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829
CDUS41 KOKX 240628
CLIISP

CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK, NY
228 AM EDT SUN AUG 24 2025

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

...THE ISLIP NY CLIMATE SUMMARY FOR AUGUST 23 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         81   1152 AM  91    1989  81      0       81
  MINIMUM         64    439 AM  52    1975  65     -1       58
  AVERAGE         73                        73      0       70

PRECIPITATION (IN)
  YESTERDAY        0.00          2.05 1970   0.14  -0.14     0.00
  MONTH TO DATE    0.53                      3.23  -2.70     6.44
  SINCE JUN 1      8.05                     10.49  -2.44    11.43
  SINCE JAN 1     23.78                     29.29  -5.51    38.81

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 JUN 1      0.0                       0.0    0.0      0.0
  SINCE JUL 1      0.0                       0.0    0.0      0.0
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        1
  SINCE JUN 1     18                        31    -13        1
  SINCE JUL 1      0                         1     -1        1

 COOLING
  YESTERDAY        8                         8      0        5
  MONTH TO DATE  203                       213    -10      211
  SINCE JUN 1    872                       677    195      807
  SINCE JAN 1    884                       706    178      849
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    17   HIGHEST WIND DIRECTION     S (200)
  HIGHEST GUST SPEED    27   HIGHEST GUST DIRECTION    SW (210)
  AVERAGE WIND SPEED     9.1


SKY COVER
  AVERAGE SKY COVER 0.2


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    84           400 AM
 LOWEST     38          1000 AM
 AVERAGE    61

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


THE ISLIP NY CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   81        92      2022
 MINIMUM TEMPERATURE (F)   65        49      1971


SUNRISE AND SUNSET
AUGUST 24 2025........SUNRISE   612 AM EDT   SUNSET   737 PM EDT
AUGUST 25 2025........SUNRISE   613 AM EDT   SUNSET   735 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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