Climatological Report (Daily)
Issued by NWS Portland, ME

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
000
CDUS41 KGYX 171015
CLIPWM


CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAY ME
514 AM EST SUN DEC 17 2017


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

...THE PORTLAND ME CLIMATE SUMMARY FOR DECEMBER 16 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         31    242 PM  56    2008  37     -6        9
  MINIMUM         11    813 AM  -9    1951  20     -9       -3
  AVERAGE         21                        29     -8        3

PRECIPITATION (IN)
  YESTERDAY        T             1.96 2005   0.13  -0.13     0.00
  MONTH TO DATE    2.05                      2.20  -0.15     1.97
  SINCE DEC 1      2.05                      2.20  -0.15     1.97
  SINCE JAN 1     42.22                     45.43  -3.21    38.78

SNOWFALL (IN)
  YESTERDAY        T            10.7  1916   0.4   -0.4      0.0
  MONTH TO DATE    8.8                       5.5    3.3      6.2
  SINCE DEC 1      8.8                       5.5    3.3      6.2
  SINCE JUL 1      8.9                       7.4    1.5      6.7
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       44                        36      8       62
  MONTH TO DATE  545                       536      9      588
  SINCE DEC 1    545                       536      9      588
  SINCE JUL 1   1710                      2027   -317     1840

 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   5   RESULTANT WIND DIRECTION   W (270)
  HIGHEST WIND SPEED    20   HIGHEST WIND DIRECTION     N (340)
  HIGHEST GUST SPEED    31   HIGHEST GUST DIRECTION     N (340)
  AVERAGE WIND SPEED     7.5


SKY COVER
  AVERAGE SKY COVER 0.5


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    96           800 AM
 LOWEST     52           900 PM
 AVERAGE    74

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


THE PORTLAND ME CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   37        57      1984
 MINIMUM TEMPERATURE (F)   20       -12      1942


SUNRISE AND SUNSET
DECEMBER 17 2017......SUNRISE   709 AM EST   SUNSET   406 PM EST
DECEMBER 18 2017......SUNRISE   710 AM EST   SUNSET   406 PM EST


-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.




$$




USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.