Climatological Report (Daily)
Issued by NWS Upton, NY

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712
CDUS41 KOKX 210627
CLIISP

CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK, NY
227 AM EDT FRI AUG 21 2026

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

...THE ISLIP NY CLIMATE SUMMARY FOR AUGUST 20 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         84   1046 AM  94    1983  81      3       70
  MINIMUM         65   1159 PM  53    2008  66     -1       62
  AVERAGE         75                        73      2       66

PRECIPITATION (IN)
  YESTERDAY        3.27R         2.61 2001   0.14   3.13     0.32
  MONTH TO DATE    6.62                      2.82   3.80     0.47
  SINCE JUN 1     15.05                     10.08   4.97     7.99
  SINCE JAN 1     30.31                     28.88   1.43    23.72

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       10                         8      2        1
  MONTH TO DATE  240                       189     51      184
  SINCE JUN 1    740                       653     87      853
  SINCE JAN 1    795                       682    113      865
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    25   HIGHEST WIND DIRECTION     N (10)
  HIGHEST GUST SPEED    32   HIGHEST GUST DIRECTION    NE (50)
  AVERAGE WIND SPEED     8.4


SKY COVER
  AVERAGE SKY COVER 0.6


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    97           900 PM
 LOWEST     55          1000 AM
 AVERAGE    76

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


THE ISLIP NY CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   81        94      1995
 MINIMUM TEMPERATURE (F)   66        47      1977


SUNRISE AND SUNSET
AUGUST 21 2026........SUNRISE   609 AM EDT   SUNSET   742 PM EDT
AUGUST 22 2026........SUNRISE   610 AM EDT   SUNSET   740 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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