Climatological Report (Daily)
Issued by NWS Sterling, VA

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CDUS41 KLWX 220524
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1223 AM EST SUN JAN 22 2017


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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JANUARY 21 2017...

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)
 YESTERDAY
  MAXIMUM         49    704 PM  62    2006  43      6       32
  MINIMUM         46    714 AM -16    1984  24     22       20
  AVERAGE         48                        33     15       26

PRECIPITATION (IN)
  YESTERDAY        T             0.94 1974   0.09  -0.09     0.00
  MONTH TO DATE    1.83                      1.77   0.06     1.82
  SINCE DEC 1      4.19                      4.73  -0.54     5.58
  SINCE JAN 1      1.83                      1.77   0.06     1.82

SNOWFALL (IN)
  YESTERDAY        0.0           8.5  2014   0.2   -0.2
  MONTH TO DATE    0.7                       4.5   -3.8
  SINCE JUL 1      0.7                       8.5   -7.8
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       17                        32    -15       39
  MONTH TO DATE  551                       672   -121      679
  SINCE DEC 1   1374                      1554   -180     1182
  SINCE JUL 1   2101                      2470   -369     1932

 COOLING
  YESTERDAY        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     8   HIGHEST WIND DIRECTION    NE (60)
  HIGHEST GUST SPEED    11   HIGHEST GUST DIRECTION    SW (220)
  AVERAGE WIND SPEED     3.8


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 1.0


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  FOG
  FOG W/VISIBILITY <= 1/4 MILE


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100           100 AM
 LOWEST     93          1200 AM
 AVERAGE    97

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


THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   43        68      1986
 MINIMUM TEMPERATURE (F)   24       -18      1984


SUNRISE AND SUNSET
JANUARY 22 2017.......SUNRISE   723 AM EST   SUNSET   520 PM EST
JANUARY 23 2017.......SUNRISE   723 AM EST   SUNSET   521 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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