Climatological Report (Daily)
Issued by NWS Sterling, VA

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CDUS41 KLWX 042122
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
422 PM EST SUN DEC 4 2016


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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR DECEMBER 4 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         45    317 PM  75    1998  50     -5       50
  MINIMUM         30    722 AM  10    1966  30      0       30
  AVERAGE         38                        40     -2       40

PRECIPITATION (IN)
  TODAY            0.00          1.18 1993   0.11  -0.11     0.00
  MONTH TO DATE    0.07                      0.44  -0.37     0.79
  SINCE DEC 1      0.07                      0.44  -0.37     0.79
  SINCE JAN 1     33.04                     39.02  -5.98    36.41

SNOWFALL (IN)
  TODAY            0.0           T    2014   0.1   -0.1
                                      1983
  MONTH TO DATE    0.0                       0.3   -0.3
  SINCE JUL 1      T                         0.8   -0.8
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  TODAY           27                        25      2       25
  MONTH TO DATE   82                        98    -16       81
  SINCE DEC 1     82                        98    -16       81
  SINCE JUL 1    809                      1014   -205      831

 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    13   HIGHEST WIND DIRECTION     W (290)
  HIGHEST GUST SPEED    16   HIGHEST GUST DIRECTION     W (290)
  AVERAGE WIND SPEED     3.5


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.6


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    78           600 AM
 LOWEST     49          1200 PM
 AVERAGE    64

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


THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   49        77      2001
 MINIMUM TEMPERATURE (F)   30        12      1966


SUNRISE AND SUNSET
DECEMBER  4 2016......SUNRISE   713 AM EST   SUNSET   447 PM EST
DECEMBER  5 2016......SUNRISE   714 AM EST   SUNSET   447 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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