Climatological Report (Daily)
Issued by NWS Upton, NY

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096
CDUS41 KOKX 301311
CLIISP

CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK, NY
911 AM EDT SUN AUG 30 2026

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

...THE ISLIP NY CLIMATE SUMMARY FOR AUGUST 29 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         77    430 PM  92    2018  80     -3       78
  MINIMUM         63   1159 PM  46    1986  64     -1       65
  AVERAGE         70                        72     -2       72

PRECIPITATION (IN)
  YESTERDAY        0.00          2.72 2002   0.11  -0.11      T
  MONTH TO DATE    7.92                      4.02   3.90     0.53
  SINCE JUN 1     16.35                     11.28   5.07     8.05
  SINCE JAN 1     31.61                     30.08   1.53    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        5                         7     -2        7
  MONTH TO DATE  304                       258     46      240
  SINCE JUN 1    804                       722     82      909
  SINCE JAN 1    859                       751    108      921
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    15   HIGHEST WIND DIRECTION    NE (30)
  HIGHEST GUST SPEED    21   HIGHEST GUST DIRECTION     N (10)
  AVERAGE WIND SPEED     7.6


SKY COVER
  AVERAGE SKY COVER 0.3


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    76           400 AM
 LOWEST     37           300 PM
 AVERAGE    57

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


THE ISLIP NY CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   79        96      1973
 MINIMUM TEMPERATURE (F)   64        45      1986


SUNRISE AND SUNSET
AUGUST 30 2026........SUNRISE   617 AM EDT   SUNSET   728 PM EDT
AUGUST 31 2026........SUNRISE   618 AM EDT   SUNSET   726 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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