Climatological Report (Daily)
Issued by NWS Upton, NY

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791
CDUS41 KOKX 132034
CLIISP

CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK, NY
434 PM EDT SUN SEP 13 2026

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

...THE ISLIP NY CLIMATE SUMMARY FOR SEPTEMBER 13 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         78    259 PM  89    2005  76      2       76
  MINIMUM         68    238 AM  48    1973  60      8       58
  AVERAGE         73                        68      5       67

PRECIPITATION (IN)
  TODAY            3.06R         1.82 1971   0.11   2.95     0.14
  MONTH TO DATE    4.21                      1.47   2.74     1.24
  SINCE SEP 1      4.21                      1.47   2.74     1.24
  SINCE JAN 1     35.84                     31.77   4.07    25.02

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 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
  TODAY            0                         1     -1        0
  MONTH TO DATE    0                         6     -6        2
  SINCE SEP 1      0                         6     -6        2
  SINCE JUL 1      0                         9     -9        2

 COOLING
  TODAY            8                         4      4        2
  MONTH TO DATE   90                        67     23       44
  SINCE SEP 1     90                        67     23       44
  SINCE JAN 1    963                       831    132      972
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    23   HIGHEST WIND DIRECTION     S (180)
  HIGHEST GUST SPEED    39   HIGHEST GUST DIRECTION     S (170)
  AVERAGE WIND SPEED     6.7


SKY COVER
  AVERAGE SKY COVER 0.9


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
  HEAVY RAIN
  RAIN
  LIGHT RAIN
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100          1100 AM
 LOWEST     76           300 PM
 AVERAGE    88

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


THE ISLIP NY CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   76        86      1976
 MINIMUM TEMPERATURE (F)   60        41      1975


SUNRISE AND SUNSET
SEPTEMBER 13 2026.....SUNRISE   631 AM EDT   SUNSET   705 PM EDT
SEPTEMBER 14 2026.....SUNRISE   632 AM EDT   SUNSET   703 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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