Climatological Report (Daily)
Issued by NWS Upton, NY

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021
CDUS41 KOKX 152033
CLIISP

CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK, NY
433 PM EDT SAT AUG 15 2026

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

...THE ISLIP NY CLIMATE SUMMARY FOR AUGUST 15 2026...
VALID TODAY AS OF 0400 PM LOCAL TIME.

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)
 TODAY
  MAXIMUM         81    259 PM  90    2016  82     -1       88
  MINIMUM         66    536 AM  48    1964  66      0       74
  AVERAGE         74                        74      0       81

PRECIPITATION (IN)
  TODAY            0.00          2.01 1969   0.14  -0.14     0.00
  MONTH TO DATE    2.65                      2.13   0.52     0.15
  SINCE JUN 1     11.08                      9.39   1.69     7.67
  SINCE JAN 1     26.34                     28.19  -1.85    23.40

SNOWFALL (IN)
  TODAY            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
  TODAY            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
  TODAY            9                         9      0       16
  MONTH TO DATE  190                       145     45      148
  SINCE JUN 1    690                       609     81      817
  SINCE JAN 1    745                       638    107      829
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    13   HIGHEST WIND DIRECTION    NE (50)
  HIGHEST GUST SPEED    18   HIGHEST GUST DIRECTION    NE (50)
  AVERAGE WIND SPEED     5.6


SKY COVER
  AVERAGE SKY COVER 0.2


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    96           300 AM
 LOWEST     38           300 PM
 AVERAGE    67

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


THE ISLIP NY CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   82        90      1997
                                             2001
                                             2018
 MINIMUM TEMPERATURE (F)   66        50      1972


SUNRISE AND SUNSET
AUGUST 15 2026........SUNRISE   603 AM EDT   SUNSET   750 PM EDT
AUGUST 16 2026........SUNRISE   604 AM EDT   SUNSET   749 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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