Climatological Report (Daily)
Issued by NWS Upton, NY

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010
CDUS41 KOKX 180617
CLIISP

CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK, NY
217 AM EDT SAT JUL 18 2026

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

...THE ISLIP NY CLIMATE SUMMARY FOR JULY 17 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    248 PM  94    1997  83      1       90
  MINIMUM         66    329 AM  56    1966  68     -2       79
  AVERAGE         75                        76     -1       85

PRECIPITATION (IN)
  YESTERDAY        0.00          1.34 2018   0.11  -0.11     0.03
  MONTH TO DATE    3.78                      1.66   2.12     2.60
  SINCE JUN 1      4.60                      5.66  -1.06     4.48
  SINCE JAN 1     19.86                     24.46  -4.60    20.21

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       10                        10      0       20
  MONTH TO DATE  197                       165     32      232
  SINCE JUN 1    397                       317     80      472
  SINCE JAN 1    452                       346    106      484
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    16   HIGHEST WIND DIRECTION     N (340)
  HIGHEST GUST SPEED    20   HIGHEST GUST DIRECTION    NW (330)
  AVERAGE WIND SPEED     7.3


SKY COVER
  AVERAGE SKY COVER 0.7


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  FOG
  HAZE


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    84          1100 PM
 LOWEST     32           200 PM
 AVERAGE    58

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


THE ISLIP NY CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   83        98      1999
 MINIMUM TEMPERATURE (F)   68        58      1971


SUNRISE AND SUNSET
JULY 18 2026..........SUNRISE   536 AM EDT   SUNSET   821 PM EDT
JULY 19 2026..........SUNRISE   537 AM EDT   SUNSET   820 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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