Climatological Report (Daily)
Issued by NWS Upton, NY

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415
CDUS41 KOKX 050642
CLIISP

CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK, NY
242 AM EDT SAT SEP 05 2026

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

...THE ISLIP NY CLIMATE SUMMARY FOR SEPTEMBER 4 2026...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1963 TO 2026


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
...................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         84    144 PM  92    2018  78      6       78
  MINIMUM         70    932 PM  49    1975  63      7       58
  AVERAGE         77                        70      7       68

PRECIPITATION (IN)
  YESTERDAY        0.04          1.65 2012   0.12  -0.08     0.00
  MONTH TO DATE    1.12                      0.47   0.65     0.00
  SINCE SEP 1      1.12                      0.47   0.65     0.00
  SINCE JAN 1     32.75                     30.77   1.98    23.78

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 SEP 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        0
  SINCE SEP 1      0                         0      0        0
  SINCE JUL 1      0                         3     -3        0

 COOLING
  YESTERDAY       12                         6      6        3
  MONTH TO DATE   37                        24     13        9
  SINCE SEP 1     37                        24     13        9
  SINCE JAN 1    910                       788    122      937
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    20   HIGHEST WIND DIRECTION     N (340)
  HIGHEST GUST SPEED    28   HIGHEST GUST DIRECTION     N (340)
  AVERAGE WIND SPEED     6.9


SKY COVER
  AVERAGE SKY COVER 0.6


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    96           300 AM
 LOWEST     48           200 PM
 AVERAGE    72

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


THE ISLIP NY CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   78        91      2023
 MINIMUM TEMPERATURE (F)   63        49      1989
                                             1997
                                             2000


SUNRISE AND SUNSET
SEPTEMBER  5 2026.....SUNRISE   623 AM EDT   SUNSET   718 PM EDT
SEPTEMBER  6 2026.....SUNRISE   624 AM EDT   SUNSET   716 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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