Climatological Report (Daily)
Issued by NWS Sterling, VA

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CDUS41 KLWX 202137
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
537 PM EDT WED AUG 20 2014


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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR AUGUST 20 2014...
VALID TODAY AS OF 0500 PM LOCAL TIME.

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)
 TODAY
  MAXIMUM         84    134 PM 104    1983  87     -3       88
  MINIMUM         68    503 AM  47    1998  64      4       61
                                      1976
                                      1964
  AVERAGE         76                        75      1       75

PRECIPITATION (IN)
  TODAY            0.57          2.17 1963   0.12   0.45     0.00
  MONTH TO DATE    2.00                      2.37  -0.37     1.21
  SINCE JUN 1      8.71                     10.02  -1.31    13.12
  SINCE JAN 1     33.06                     26.84   6.22    27.11

SNOWFALL (IN)
  TODAY            0.0          MM      MM   0.0    0.0
  MONTH TO DATE    0.0                       0.0    0.0
  SINCE JUL 1      0.0                       0.0    0.0
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  TODAY            0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE JUN 1      5                        15    -10        0
  SINCE JUL 1      3                         0      3        0

 COOLING
  TODAY           11                        10      1       10
  MONTH TO DATE  145                       219    -74      160
  SINCE JUN 1    673                       819   -146      835
  SINCE JAN 1    759                       911   -152      974
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    20   HIGHEST WIND DIRECTION     N (350)
  HIGHEST GUST SPEED    24   HIGHEST GUST DIRECTION     N (350)
  AVERAGE WIND SPEED     6.4


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.8


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED TODAY.
  THUNDERSTORM
  HEAVY RAIN
  LIGHT RAIN
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    90           300 AM
 LOWEST     51           200 PM
 AVERAGE    71

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


THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   86        94      2009
                                             2005
 MINIMUM TEMPERATURE (F)   64        47      1976


SUNRISE AND SUNSET
AUGUST 20 2014........SUNRISE   628 AM EDT   SUNSET   758 PM EDT
AUGUST 21 2014........SUNRISE   629 AM EDT   SUNSET   756 PM EDT


-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.




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