Climatological Report (Daily)
Issued by NWS Upton, NY

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984
CDUS41 KOKX 310621
CLIISP

CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK, NY
221 AM EDT MON AUG 31 2026

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

...THE ISLIP NY CLIMATE SUMMARY FOR AUGUST 30 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         79   1159 AM  96    1973  79      0       77
  MINIMUM         62    309 AM  45    1986  64     -2       56
  AVERAGE         71                        72     -1       67

PRECIPITATION (IN)
  YESTERDAY        0.02          0.54 1974   0.11  -0.09     0.00
  MONTH TO DATE    7.94                      4.13   3.81     0.53
  SINCE JUN 1     16.37                     11.39   4.98     8.05
  SINCE JAN 1     31.63                     30.19   1.44    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 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        6                         7     -1        2
  MONTH TO DATE  310                       265     45      242
  SINCE JUN 1    810                       729     81      911
  SINCE JAN 1    865                       758    107      923
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    18   HIGHEST WIND DIRECTION    SW (210)
  HIGHEST GUST SPEED    25   HIGHEST GUST DIRECTION    SW (210)
  AVERAGE WIND SPEED     8.1


SKY COVER
  AVERAGE SKY COVER 0.8


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  LIGHT RAIN


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    94           900 PM
 LOWEST     50          1000 AM
 AVERAGE    72

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


THE ISLIP NY CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   79        94      1973
                                             2010
 MINIMUM TEMPERATURE (F)   64        45      1965


SUNRISE AND SUNSET
AUGUST 31 2026........SUNRISE   618 AM EDT   SUNSET   726 PM EDT
SEPTEMBER  1 2026.....SUNRISE   619 AM EDT   SUNSET   725 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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