Climatological Report (Daily)
Issued by NWS Portland, ME

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CDUS41 KGYX 120919
CLIPWM


CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAY ME
419 AM EST TUE DEC 12 2017


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

...THE PORTLAND ME CLIMATE SUMMARY FOR DECEMBER 11 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         38    121 PM  60    1966  39     -1       31
  MINIMUM         26   1111 PM  -6    1958  22      4        8
  AVERAGE         32                        30      2       20

PRECIPITATION (IN)
  YESTERDAY        0.00          2.01 1887   0.14  -0.14     0.00
  MONTH TO DATE    1.23                      1.54  -0.31     1.31
  SINCE DEC 1      1.23                      1.54  -0.31     1.31
  SINCE JAN 1     41.40                     44.77  -3.37    38.12

SNOWFALL (IN)
  YESTERDAY        0.0           4.4  1882   0.4   -0.4      0.0
  MONTH TO DATE    6.4                       3.5    2.9      2.2
  SINCE DEC 1      6.4                       3.5    2.9      2.2
  SINCE JUL 1      6.5                       5.4    1.1      2.7
  SNOW DEPTH       3

DEGREE DAYS
 HEATING
  YESTERDAY       33                        34     -1       45
  MONTH TO DATE  326                       358    -32      368
  SINCE DEC 1    326                       358    -32      368
  SINCE JUL 1   1491                      1849   -358     1620

 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   6   RESULTANT WIND DIRECTION  SW (220)
  HIGHEST WIND SPEED    17   HIGHEST WIND DIRECTION     W (250)
  HIGHEST GUST SPEED    27   HIGHEST GUST DIRECTION     W (270)
  AVERAGE WIND SPEED     9.4


SKY COVER
  AVERAGE SKY COVER 0.7


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    72           200 AM
 LOWEST     48           200 PM
 AVERAGE    60

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


THE PORTLAND ME CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   39        64      1979
 MINIMUM TEMPERATURE (F)   22       -15      1977


SUNRISE AND SUNSET
DECEMBER 12 2017......SUNRISE   706 AM EST   SUNSET   405 PM EST
DECEMBER 13 2017......SUNRISE   706 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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