Climatological Report (Daily)
Issued by NWS Sterling, VA

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CDUS41 KLWX 192129
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
428 PM EST SUN FEB 19 2017


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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR FEBRUARY 19 2017...
VALID TODAY AS OF 0400 PM LOCAL TIME.

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1962 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 TODAY
  MAXIMUM         69    339 PM  71    1997  47     22       43
  MINIMUM         50    104 AM   6    2015  27     23       18
  AVERAGE         60                        37     23       31

PRECIPITATION (IN)
  TODAY            T             1.34 1972   0.09  -0.09     0.00
  MONTH TO DATE    0.25                      1.87  -1.62     2.57
  SINCE DEC 1      5.34                      7.51  -2.17    10.80
  SINCE JAN 1      2.98                      4.55  -1.57     7.04

SNOWFALL (IN)
  TODAY            0.0          13.8  1979   0.3   -0.3
  MONTH TO DATE    0.6                       5.7   -5.1
  SINCE JUL 1      1.6                      17.0  -15.4
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  TODAY            5                        28    -23       34
  MONTH TO DATE  443                       565   -122      606
  SINCE DEC 1   2052                      2433   -381     2142
  SINCE JUL 1   2779                      3349   -570     2892

 COOLING
  TODAY            0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE DEC 1      0                         0      0        2
  SINCE JAN 1      0                         0      0        0
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    23   HIGHEST WIND DIRECTION    NW (310)
  HIGHEST GUST SPEED    30   HIGHEST GUST DIRECTION    NW (300)
  AVERAGE WIND SPEED    10.9


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.7


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED TODAY.
  LIGHT RAIN


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    71           300 AM
 LOWEST     32           400 PM
 AVERAGE    52

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


THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   48        70      1971
 MINIMUM TEMPERATURE (F)   27        -2      1979


SUNRISE AND SUNSET
FEBRUARY 19 2017......SUNRISE   656 AM EST   SUNSET   552 PM EST
FEBRUARY 20 2017......SUNRISE   654 AM EST   SUNSET   553 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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