Climatological Report (Daily)
Issued by NWS Upton, NY

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000
CDUS41 KOKX 150631
CLIISP


CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK NY
131 AM EST FRI DEC 15 2017


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

...THE ISLIP NY CLIMATE SUMMARY FOR DECEMBER 14 2017...

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)
 YESTERDAY
  MAXIMUM         32    324 PM  62    2015  43    -11       43
  MINIMUM         22   1159 PM   5    1982  29     -7       29
  AVERAGE         27                        36     -9       36

PRECIPITATION (IN)
  YESTERDAY        0.10          1.62 1977   0.13  -0.03     0.00
  MONTH TO DATE    0.97                      1.94  -0.97     1.39
  SINCE DEC 1      0.97                      1.94  -0.97     1.39
  SINCE JAN 1     42.29                     44.12  -1.83    32.85

SNOWFALL (IN)
  YESTERDAY        1.8           4.1  2013   0.2    1.6      0.0
  MONTH TO DATE    3.1                       1.7    1.4      0.1
  SINCE OCT 1      3.1                       2.2    0.9      0.1
  SINCE JUL 1      3.1                       2.2    0.9      0.1
  SNOW DEPTH       1

DEGREE DAYS
 HEATING
  YESTERDAY       38                        29      9       29
  MONTH TO DATE  363                       376    -13      370
  SINCE DEC 1    363                       376    -13      370
  SINCE JUL 1   1114                      1392   -278     1161

 COOLING
  YESTERDAY        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    24   HIGHEST WIND DIRECTION     W (280)
  HIGHEST GUST SPEED    31   HIGHEST GUST DIRECTION     W (270)
  AVERAGE WIND SPEED    10.6


SKY COVER
  AVERAGE SKY COVER 0.8


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    92           700 AM
 LOWEST     42          1200 AM
 AVERAGE    67

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


THE ISLIP NY CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   43        62      2015
 MINIMUM TEMPERATURE (F)   28        11      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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