Climatological Report (Daily)
Issued by NWS Sterling, VA

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CDUS41 KLWX 200530
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1228 AM EST MON NOV 20 2017


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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR NOVEMBER 19 2017...

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)
 YESTERDAY
  MAXIMUM         60    347 AM  76    1985  56      4       70
  MINIMUM         40    929 PM  13    2014  35      5       35
  AVERAGE         50                        45      5       53

PRECIPITATION (IN)
  YESTERDAY        0.09          1.93 2003   0.12  -0.03     0.02
  MONTH TO DATE    1.96                      2.15  -0.19     0.25
  SINCE SEP 1      6.86                      9.32  -2.46     3.45
  SINCE JAN 1     39.86                     37.32   2.54    31.45

SNOWFALL (IN)
  YESTERDAY        0.0           T    2016   0.0    0.0
                                      1984
                                      1969
  MONTH TO DATE    0.0                       0.1   -0.1
  SINCE JUL 1      T                         0.1   -0.1
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       15                        20     -5       12
  MONTH TO DATE  342                       318     24      275
  SINCE SEP 1    562                       672   -110      486
  SINCE JUL 1    563                       674   -111      486

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    1                         0      1        2
  SINCE SEP 1    220                       160     60      296
  SINCE JAN 1   1281                      1176    105     1559
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    38   HIGHEST WIND DIRECTION     W (290)
  HIGHEST GUST SPEED    49   HIGHEST GUST DIRECTION    NW (300)
  AVERAGE WIND SPEED    17.6


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.8


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100           200 AM
 LOWEST     45           300 PM
 AVERAGE    73

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


THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   56        79      1985
 MINIMUM TEMPERATURE (F)   34        18      1980


SUNRISE AND SUNSET
NOVEMBER 20 2017......SUNRISE   658 AM EST   SUNSET   452 PM EST
NOVEMBER 21 2017......SUNRISE   659 AM EST   SUNSET   452 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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