Climatological Report (Daily)
Issued by NWS Portland, ME

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751
CDUS41 KGYX 150927
CLIPWM


CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAY ME
427 AM EST FRI DEC 15 2017


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

...THE PORTLAND ME CLIMATE SUMMARY FOR DECEMBER 14 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1941 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         26    239 PM  55    2006  38    -12       39
  MINIMUM         14   1157 PM  -6    1976  21     -7       22
  AVERAGE         20                        29     -9       31

PRECIPITATION (IN)
  YESTERDAY        0.00          1.74 1917   0.13  -0.13     0.01
  MONTH TO DATE    2.04                      1.94   0.10     1.97
  SINCE DEC 1      2.04                      1.94   0.10     1.97
  SINCE JAN 1     42.21                     45.17  -2.96    38.78

SNOWFALL (IN)
  YESTERDAY        0.0           7.1  1917   0.4   -0.4       T
  MONTH TO DATE    8.7                       4.7    4.0      6.2
  SINCE DEC 1      8.7                       4.7    4.0      6.2
  SINCE JUL 1      8.8                       6.6    2.2      6.7
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       45                        36      9       34
  MONTH TO DATE  451                       464    -13      475
  SINCE DEC 1    451                       464    -13      475
  SINCE JUL 1   1616                      1955   -339     1727

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE DEC 1      0                         0      0        0
  SINCE JAN 1    433                       359     74      553
..................................................................


WIND (MPH)
  RESULTANT WIND SPEED  13   RESULTANT WIND DIRECTION   W (250)
  HIGHEST WIND SPEED    18   HIGHEST WIND DIRECTION     W (270)
  HIGHEST GUST SPEED    28   HIGHEST GUST DIRECTION     W (250)
  AVERAGE WIND SPEED    13.1


SKY COVER
  AVERAGE SKY COVER 0.3


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  NO SIGNIFICANT WEATHER WAS OBSERVED.


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    67           100 AM
 LOWEST     36           300 PM
 AVERAGE    52

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


THE PORTLAND ME CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   38        57      2008
 MINIMUM TEMPERATURE (F)   21        -3      1989


SUNRISE AND SUNSET
DECEMBER 15 2017......SUNRISE   708 AM EST   SUNSET   405 PM EST
DECEMBER 16 2017......SUNRISE   709 AM EST   SUNSET   405 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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