Climatological Report (Daily)
Issued by NWS Sterling, VA

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CDUS41 KLWX 290525
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1224 AM EST MON DEC 29 2014


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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR DECEMBER 28 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         57   1256 PM  73    1984  43     14       57
  MINIMUM         40   1212 AM   8    1966  25     15       27
  AVERAGE         49                        34     15       42

PRECIPITATION (IN)
  YESTERDAY        0.04          1.74 1967   0.08  -0.04     0.00
  MONTH TO DATE    3.25                      2.73   0.52     4.31
  SINCE DEC 1      3.25                      2.73   0.52     4.31
  SINCE JAN 1     46.06                     41.31   4.75    44.07

SNOWFALL (IN)
  YESTERDAY       MM             2.3  1993   0.2   MM
  MONTH TO DATE    T                         3.1   -3.1
  SINCE JUL 1      1.6                       3.6   -2.0
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       16                        31    -15       23
  MONTH TO DATE  720                       789    -69      716
  SINCE DEC 1    720                       789    -69      716
  SINCE JUL 1   1714                      1705      9     1680

 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    15   HIGHEST WIND DIRECTION     N (350)
  HIGHEST GUST SPEED    18   HIGHEST GUST DIRECTION     N (350)
  AVERAGE WIND SPEED     4.0


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.9


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  LIGHT RAIN


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    93           500 PM
 LOWEST     59          1200 PM
 AVERAGE    76

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


THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   43        78      1984
 MINIMUM TEMPERATURE (F)   25         7      1977


SUNRISE AND SUNSET
DECEMBER 29 2014......SUNRISE   728 AM EST   SUNSET   456 PM EST
DECEMBER 30 2014......SUNRISE   728 AM EST   SUNSET   457 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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