Climatological Report (Daily)
Issued by NWS Sterling, VA

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750
CDUS41 KLWX 092125
CLIDCA


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
425 PM EST FRI DEC 9 2016


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

...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR DECEMBER 9 2016...
VALID TODAY AS OF 0400 PM LOCAL TIME.

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2016


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE
                VALUE   (LST)  VALUE       VALUE  FROM
                                                  NORMAL
...............................................................
TEMPERATURE (F)
 TODAY
  MAXIMUM         41    219 PM  71    1991  49     -8
  MINIMUM         30    524 AM   4    1876  34     -4
  AVERAGE         36                        41     -5

PRECIPITATION (IN)
  TODAY            0.00          1.29 2009   0.11  -0.11
  MONTH TO DATE    1.40                      0.97   0.43
  SINCE DEC 1      1.40                      0.97   0.43
  SINCE JAN 1     30.49                     37.66  -7.17

SNOWFALL (IN)
  TODAY            0.0           1.6  2005   0.0    0.0
  MONTH TO DATE    0.0                       0.5   -0.5
  SINCE JUL 1      0.0                       1.0   -1.0
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  TODAY           29                                5
  MONTH TO DATE  175                              -26
  SINCE DEC 1    175                              -26
  SINCE JUL 1    662                             -234

 COOLING
  TODAY            0                                0
  MONTH TO DATE    0                                0
  SINCE DEC 1      0                                0
  SINCE JAN 1   1994                              445
...............................................................


WIND (MPH)
  HIGHEST WIND SPEED    23   HIGHEST WIND DIRECTION    NW (320)
  HIGHEST GUST SPEED    32   HIGHEST GUST DIRECTION     W (290)
  AVERAGE WIND SPEED    14.8




RELATIVE HUMIDITY (PERCENT)
 HIGHEST    53
 LOWEST     37
 AVERAGE    45

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


THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   48        67      1966
                                             1939
 MINIMUM TEMPERATURE (F)   34         4      1876


SUNRISE AND SUNSET
DECEMBER  9 2016......SUNRISE   715 AM EST   SUNSET   446 PM EST
DECEMBER 10 2016......SUNRISE   716 AM EST   SUNSET   446 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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