Climatological Report (Daily)
Issued by NWS Upton, NY

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000
CDUS41 KOKX 152134
CLIISP


CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK NY
434 PM EST FRI DEC 15 2017


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

...THE ISLIP NY CLIMATE SUMMARY FOR DECEMBER 15 2017...
VALID TODAY AS OF 0400 PM LOCAL TIME.

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1963 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 TODAY
  MAXIMUM         31    223 PM  62    2015  43    -12       33
  MINIMUM         12    625 AM  11    1968  28    -16       19
  AVERAGE         22                        36    -14       26

PRECIPITATION (IN)
  TODAY            0.01          1.55 2013   0.13  -0.12      T
  MONTH TO DATE    0.98                      2.07  -1.09     1.39
  SINCE DEC 1      0.98                      2.07  -1.09     1.39
  SINCE JAN 1     42.30                     44.25  -1.95    32.85

SNOWFALL (IN)
  TODAY            0.2           1.1  1987   0.2    0.0      0.1
  MONTH TO DATE    3.3                       1.9    1.4      0.2
  SINCE OCT 1      3.3                       2.4    0.9      0.2
  SINCE JUL 1      3.3                       2.4    0.9      0.2
  SNOW DEPTH       1

DEGREE DAYS
 HEATING
  TODAY           43                        29     14       39
  MONTH TO DATE  406                       405      1      409
  SINCE DEC 1    406                       405      1      409
  SINCE JUL 1   1157                      1421   -264     1200

 COOLING
  TODAY            0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE DEC 1      0                         0      0        0
  SINCE JAN 1    972                       787    185     1124
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    12   HIGHEST WIND DIRECTION    NW (310)
  HIGHEST GUST SPEED    15   HIGHEST GUST DIRECTION    NW (300)
  AVERAGE WIND SPEED     3.1


SKY COVER
  AVERAGE SKY COVER 0.6


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED TODAY.
  LIGHT SNOW
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    85           400 PM
 LOWEST     52          1200 AM
 AVERAGE    69

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


THE ISLIP NY CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   43        64      1971
 MINIMUM TEMPERATURE (F)   28        10      1988
                                             1968


SUNRISE AND SUNSET
DECEMBER 15 2017......SUNRISE   710 AM EST   SUNSET   426 PM EST
DECEMBER 16 2017......SUNRISE   710 AM EST   SUNSET   426 PM EST


-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.




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