Climatological Report (Daily)
Issued by NWS Sterling, VA

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CDUS41 KLWX 092123
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
423 PM EST SUN DEC 9 2018


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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR DECEMBER 9 2018...
VALID TODAY AS OF 0400 PM LOCAL TIME.

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1960 TO 2018


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 TODAY
  MAXIMUM         32    359 PM  72    1978  48    -16       35
  MINIMUM         29    932 AM  11    1989  29      0       25
  AVERAGE         31                        38     -7       30

PRECIPITATION (IN)
  TODAY            0.00          1.12 1973   0.11  -0.11     0.24
  MONTH TO DATE    0.32                      0.98  -0.66     0.37
  SINCE DEC 1      0.32                      0.98  -0.66     0.37
  SINCE JAN 1     61.30                     39.56  21.74    40.26

SNOWFALL (IN)
  TODAY            0.0           4.0  2017   0.1   -0.1
  MONTH TO DATE    T                         0.8   -0.8
  SINCE JUL 1      3.0                       1.3    1.7
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  TODAY           34                        27      7       35
  MONTH TO DATE  255                       230     25      218
  SINCE DEC 1    255                       230     25      218
  SINCE JUL 1   1213                      1146     67     1012

 COOLING
  TODAY            0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE DEC 1      0                         0      0        0
  SINCE JAN 1   1522                      1178    344     1281
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    13   HIGHEST WIND DIRECTION     N (10)
  HIGHEST GUST SPEED    14   HIGHEST GUST DIRECTION     N (10)
  AVERAGE WIND SPEED     5.1


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 1.0


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    69           300 AM
 LOWEST     58           100 AM
 AVERAGE    64

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


THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   47        70      1966
 MINIMUM TEMPERATURE (F)   28         4      1989


SUNRISE AND SUNSET
DECEMBER  9 2018......SUNRISE   717 AM EST   SUNSET   447 PM EST
DECEMBER 10 2018......SUNRISE   718 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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