Climatological Report (Daily)
Issued by NWS Sterling, VA

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CDUS41 KLWX 082130
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
430 PM EST THU DEC 8 2016


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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR DECEMBER 8 2016...
VALID TODAY AS OF 0400 PM LOCAL TIME.

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1962 TO 2016


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 TODAY
  MAXIMUM         48    243 PM  76    1980  48      0       53
  MINIMUM         29    157 AM  13    2002  29      0       29
  AVERAGE         39                        38      1       41

PRECIPITATION (IN)
  TODAY            0.00          1.24 1972   0.10  -0.10     0.00
  MONTH TO DATE    1.36                      0.87   0.49     0.79
  SINCE DEC 1      1.36                      0.87   0.49     0.79
  SINCE JAN 1     34.33                     39.45  -5.12    36.41

SNOWFALL (IN)
  TODAY            0.0           5.0  1989   0.1   -0.1
  MONTH TO DATE    T                         0.7   -0.7
  SINCE JUL 1      T                         1.2   -1.2
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  TODAY           26                        27     -1       24
  MONTH TO DATE  176                       203    -27      178
  SINCE DEC 1    176                       203    -27      178
  SINCE JUL 1    903                      1119   -216      928

 COOLING
  TODAY            0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE DEC 1      0                         0      0        0
  SINCE JAN 1   1559                      1178    381     1324
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    24   HIGHEST WIND DIRECTION     W (290)
  HIGHEST GUST SPEED    30   HIGHEST GUST DIRECTION    NW (300)
  AVERAGE WIND SPEED     4.9


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.8


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    92          1200 AM
 LOWEST     31           300 PM
 AVERAGE    62

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


THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   48        72      1978
 MINIMUM TEMPERATURE (F)   29        11      1989


SUNRISE AND SUNSET
DECEMBER  8 2016......SUNRISE   716 AM EST   SUNSET   447 PM EST
DECEMBER  9 2016......SUNRISE   717 AM EST   SUNSET   448 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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