Climatological Report (Daily)
Issued by NWS Upton, NY

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849
CDUS41 KOKX 110627
CLIISP

CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK, NY
227 AM EDT TUE AUG 11 2026

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

...THE ISLIP NY CLIMATE SUMMARY FOR AUGUST 10 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    301 PM  91    2009  82      2       87
  MINIMUM         70    539 AM  51    1964  67      3       62
  AVERAGE         77                        74      3       75

PRECIPITATION (IN)
  YESTERDAY        0.02          1.64 2012   0.14  -0.12     0.00
  MONTH TO DATE    2.57                      1.43   1.14     0.04
  SINCE JUN 1     11.00                      8.69   2.31     7.56
  SINCE JAN 1     26.26                     27.49  -1.23    23.29

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        0
  SINCE JUN 1     10                        31    -21       18
  SINCE JUL 1      0                         1     -1        0

 COOLING
  YESTERDAY       12                        10      2       10
  MONTH TO DATE  129                       100     29       75
  SINCE JUN 1    629                       564     65      744
  SINCE JAN 1    684                       593     91      756
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    13   HIGHEST WIND DIRECTION    SW (230)
  HIGHEST GUST SPEED    17   HIGHEST GUST DIRECTION    SW (220)
  AVERAGE WIND SPEED     5.6


SKY COVER
  AVERAGE SKY COVER 0.5


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    91          1100 PM
 LOWEST     49           900 AM
 AVERAGE    70

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


THE ISLIP NY CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   82        93      2005
 MINIMUM TEMPERATURE (F)   67        49      1972


SUNRISE AND SUNSET
AUGUST 11 2026........SUNRISE   559 AM EDT   SUNSET   756 PM EDT
AUGUST 12 2026........SUNRISE   600 AM EDT   SUNSET   755 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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