Climatological Report (Daily)
Issued by NWS Upton, NY

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000
CDUS41 KOKX 120624
CLIISP


CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK NY
124 AM EST TUE DEC 12 2017


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

...THE ISLIP NY CLIMATE SUMMARY FOR DECEMBER 11 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         42    214 PM  65    1971  44     -2       36
  MINIMUM         29    818 PM   5    1968  30     -1       22
  AVERAGE         36                        37     -1       29

PRECIPITATION (IN)
  YESTERDAY        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)
  YESTERDAY        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
  YESTERDAY       29                        28      1       36
  MONTH TO DATE  265                       290    -25      290
  SINCE DEC 1    265                       290    -25      290
  SINCE JUL 1   1016                      1306   -290     1081

 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    18   HIGHEST WIND DIRECTION     W (260)
  HIGHEST GUST SPEED    23   HIGHEST GUST DIRECTION     W (250)
  AVERAGE WIND SPEED     6.4


SKY COVER
  AVERAGE SKY COVER 0.8


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    82          1000 PM
 LOWEST     46           200 PM
 AVERAGE    64

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


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


SUNRISE AND SUNSET
DECEMBER 12 2017......SUNRISE   707 AM EST   SUNSET   425 PM EST
DECEMBER 13 2017......SUNRISE   708 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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