Climatological Report (Daily)
Issued by NWS Upton, NY

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000
CDUS41 KOKX 112138
CLIISP


CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK NY
437 PM EST MON DEC 11 2017


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

...THE ISLIP NY CLIMATE SUMMARY FOR DECEMBER 11 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         42    214 PM  65    1971  44     -2       36
  MINIMUM         31    739 AM   5    1968  30      1       22
  AVERAGE         37                        37      0       29

PRECIPITATION (IN)
  TODAY            T             2.65 1992   0.14  -0.14     0.01
  MONTH TO DATE    0.85                      1.54  -0.69     0.54
  SINCE DEC 1      0.85                      1.54  -0.69     0.54
  SINCE JAN 1     42.17                     43.72  -1.55    32.00

SNOWFALL (IN)
  TODAY            T             1.2  1986   0.1   -0.1      0.1
  MONTH TO DATE    1.3                       1.2    0.1      0.1
  SINCE OCT 1      1.3                       1.7   -0.4      0.1
  SINCE JUL 1      1.3                       1.7   -0.4      0.1
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  TODAY           28                        28      0       36
  MONTH TO DATE  264                       290    -26      290
  SINCE DEC 1    264                       290    -26      290
  SINCE JUL 1   1015                      1306   -291     1081

 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    18   HIGHEST WIND DIRECTION     W (260)
  HIGHEST GUST SPEED    23   HIGHEST GUST DIRECTION     W (250)
  AVERAGE WIND SPEED     9.9


SKY COVER
  AVERAGE SKY COVER 0.8


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    75           900 AM
 LOWEST     46           200 PM
 AVERAGE    61

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


THE ISLIP NY CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   44        68      2015
 MINIMUM TEMPERATURE (F)   29         7      1988


SUNRISE AND SUNSET
DECEMBER 11 2017......SUNRISE   707 AM EST   SUNSET   425 PM EST
DECEMBER 12 2017......SUNRISE   707 AM EST   SUNSET   425 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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