Climatological Report (Daily)
Issued by NWS Sterling, VA

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CDUS41 KLWX 232125
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
524 PM EDT WED AUG 23 2017


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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR AUGUST 23 2017...
VALID TODAY AS OF 0500 PM LOCAL TIME.

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1960 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 TODAY
  MAXIMUM         83    358 PM  96    1998  86     -3       85
  MINIMUM         72    513 AM  47    1981  64      8       61
  AVERAGE         78                        75      3       73

PRECIPITATION (IN)
  TODAY            T             1.60 2001   0.11  -0.11     0.00
  MONTH TO DATE    3.12                      2.68   0.44     0.94
  SINCE JUN 1     13.20                     10.33   2.87    10.31
  SINCE JAN 1     32.29                     27.15   5.14    27.98

SNOWFALL (IN)
  TODAY            0.0          MM      MM   0.0    0.0
  MONTH TO DATE    0.0                       0.0    0.0
  SINCE JUL 1      T                         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      6                        15     -9        3
  SINCE JUL 1      0                         0      0        0

 COOLING
  TODAY           13                        10      3        8
  MONTH TO DATE  240                       249     -9      339
  SINCE JUN 1    899                       849     50     1051
  SINCE JAN 1   1036                       941     95     1149
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    14   HIGHEST WIND DIRECTION     N (10)
  HIGHEST GUST SPEED    29   HIGHEST GUST DIRECTION     N (10)
  AVERAGE WIND SPEED     7.8


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    93           200 AM
 LOWEST     47           400 PM
 AVERAGE    70

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


THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   86        97      1998
 MINIMUM TEMPERATURE (F)   63        46      1987
                                             1971


SUNRISE AND SUNSET
AUGUST 23 2017........SUNRISE   631 AM EDT   SUNSET   753 PM EDT
AUGUST 24 2017........SUNRISE   632 AM EDT   SUNSET   752 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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