Climatological Report (Daily)
Issued by NWS Upton, NY

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006
CDUS41 KOKX 300620
CLIISP

CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK, NY
220 AM EDT THU JUL 30 2026

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

...THE ISLIP NY CLIMATE SUMMARY FOR JULY 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         79   1211 PM  96    2002  83     -4       96
  MINIMUM         68    629 AM  55    1968  68      0       73
  AVERAGE         74                        75     -1       85

PRECIPITATION (IN)
  YESTERDAY        2.12R         1.00 2016   0.12   2.00     0.00
  MONTH TO DATE    7.42                      2.99   4.43     2.71
  SINCE JUN 1      8.24                      6.99   1.25     4.59
  SINCE JAN 1     23.50                     25.79  -2.29    20.32

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                        30    -20       18
  SINCE JUL 1      0                         0      0        0

 COOLING
  YESTERDAY        9                        10     -1       20
  MONTH TO DATE  284                       287     -3      395
  SINCE JUN 1    484                       439     45      635
  SINCE JAN 1    539                       468     71      647
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    22   HIGHEST WIND DIRECTION    SE (130)
  HIGHEST GUST SPEED    33   HIGHEST GUST DIRECTION    SE (120)
  AVERAGE WIND SPEED     6.9


SKY COVER
  AVERAGE SKY COVER 0.8


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100           600 AM
 LOWEST     71           300 PM
 AVERAGE    86

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


THE ISLIP NY CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   83        96      2025
 MINIMUM TEMPERATURE (F)   68        52      1968


SUNRISE AND SUNSET
JULY 30 2026..........SUNRISE   547 AM EDT   SUNSET   810 PM EDT
JULY 31 2026..........SUNRISE   548 AM EDT   SUNSET   809 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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