Climatological Report (Daily)
Issued by NWS Sterling, VA

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CDUS41 KLWX 252128
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
528 PM EDT TUE JUL 25 2017


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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JULY 25 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         79    329 PM 100    2016  88     -9      100
  MINIMUM         66    454 AM  55    1976  66      0       74
  AVERAGE         73                        77     -4       87

PRECIPITATION (IN)
  TODAY            0.00          1.54 1992   0.12  -0.12     0.01
  MONTH TO DATE    7.11                      2.94   4.17     1.37
  SINCE JUN 1      8.39                      6.92   1.47     7.72
  SINCE JAN 1     27.48                     23.74   3.74    25.39

SNOWFALL (IN)
  TODAY            0.0          MM      MM   0.0    0.0
  MONTH TO DATE    T                         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            8                        12     -4       22
  MONTH TO DATE  357                       295     62      353
  SINCE JUN 1    613                       532     81      606
  SINCE JAN 1    750                       624    126      704
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    16   HIGHEST WIND DIRECTION    NW (310)
  HIGHEST GUST SPEED    21   HIGHEST GUST DIRECTION    NW (320)
  AVERAGE WIND SPEED    10.5


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.5


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    68           500 AM
 LOWEST     54          1000 AM
 AVERAGE    61

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


THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   88        98      2012
                                             1966
 MINIMUM TEMPERATURE (F)   66        50      1976


SUNRISE AND SUNSET
JULY 25 2017..........SUNRISE   605 AM EDT   SUNSET   827 PM EDT
JULY 26 2017..........SUNRISE   606 AM EDT   SUNSET   826 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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