Climatological Report (Daily)
Issued by NWS Sterling, VA

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CDUS41 KLWX 210529
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1229 AM EST MON JAN 21 2019


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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JANUARY 20 2019...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1960 TO 2019


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         40    935 AM  63    2006  42     -2       61
  MINIMUM         16   1159 PM  -7    1985  24     -8       20
  AVERAGE         28                        33     -5       41

PRECIPITATION (IN)
  YESTERDAY        0.24          1.01 1979   0.09   0.15     0.00
  MONTH TO DATE    2.35                      1.68   0.67     1.55
  SINCE DEC 1      8.11                      4.64   3.47     2.32
  SINCE JAN 1      2.35                      1.68   0.67     1.55

SNOWFALL (IN)
  YESTERDAY        0.0           4.6  2000   0.3   -0.3
  MONTH TO DATE   12.4                       4.3    8.1
  SINCE JUL 1     15.4                       8.3    7.1
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       37                        32      5       24
  MONTH TO DATE  593                       640    -47      736
  SINCE DEC 1   1397                      1522   -125     1659
  SINCE JUL 1   2355                      2438    -83     2453

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE DEC 1      0                         0      0        0
  SINCE JAN 1      0                         0      0        0
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    37   HIGHEST WIND DIRECTION    NW (310)
  HIGHEST GUST SPEED    49   HIGHEST GUST DIRECTION    NW (320)
  AVERAGE WIND SPEED    19.0


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.8


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  RAIN
  LIGHT RAIN
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100          1200 AM
 LOWEST     41           900 PM
 AVERAGE    71

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


THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   43        63      2018
 MINIMUM TEMPERATURE (F)   24       -16      1984


SUNRISE AND SUNSET
JANUARY 21 2019.......SUNRISE   724 AM EST   SUNSET   518 PM EST
JANUARY 22 2019.......SUNRISE   724 AM EST   SUNSET   519 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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