Climatological Report (Daily)
Issued by NWS Sterling, VA

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CDUS41 KLWX 280536
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1235 AM EST SUN DEC 28 2014


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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR DECEMBER 27 2014...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1962 TO 2014


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         59    316 PM  73    1971  43     16       50
  MINIMUM         27    413 AM   1    1989  25      2       21
  AVERAGE         43                        34      9       36

PRECIPITATION (IN)
  YESTERDAY        0.00          1.04 1964   0.08  -0.08     0.00
  MONTH TO DATE    3.21                      2.65   0.56     4.31
  SINCE DEC 1      3.21                      2.65   0.56     4.31
  SINCE JAN 1     46.02                     41.23   4.79    44.07

SNOWFALL (IN)
  YESTERDAY        0.0           4.4  1990   0.1   -0.1
  MONTH TO DATE    T                         2.9   -2.9
  SINCE JUL 1      1.6                       3.4   -1.8
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       22                        31     -9       29
  MONTH TO DATE  704                       758    -54      693
  SINCE DEC 1    704                       758    -54      693
  SINCE JUL 1   1698                      1674     24     1657

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        2
  SINCE DEC 1      0                         0      0        2
  SINCE JAN 1    968                      1178   -210     1274
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED     7   HIGHEST WIND DIRECTION    SE (140)
  HIGHEST GUST SPEED     8   HIGHEST GUST DIRECTION    SE (150)
  AVERAGE WIND SPEED     1.7


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.7


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100           500 AM
 LOWEST     28           400 PM
 AVERAGE    64

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


THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   43        73      1984
 MINIMUM TEMPERATURE (F)   25         8      1966


SUNRISE AND SUNSET
DECEMBER 28 2014......SUNRISE   728 AM EST   SUNSET   455 PM EST
DECEMBER 29 2014......SUNRISE   728 AM EST   SUNSET   456 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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