Climatological Report (Daily)
Issued by NWS Sterling, VA

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CDUS41 KLWX 110528
CLIDCA


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1225 AM EST SUN DEC 11 2016


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

...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR DECEMBER 10 2016...

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


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         39   1245 PM  67    1966  48     -9       63
                                      1939
  MINIMUM         26   1148 PM   4    1876  34     -8       41
  AVERAGE         33                        41     -8       52

PRECIPITATION (IN)
  YESTERDAY        0.00          2.23 1878   0.11  -0.11      T
  MONTH TO DATE    1.40                      1.08   0.32     1.07
  SINCE DEC 1      1.40                      1.08   0.32     1.07
  SINCE JAN 1     30.49                     37.77  -7.28    41.25

SNOWFALL (IN)
  YESTERDAY        0.0           7.0  1904   0.1   -0.1
  MONTH TO DATE    0.0                       0.6   -0.6
  SINCE JUL 1      0.0                       1.1   -1.1
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       32                        24      8       13
  MONTH TO DATE  207                       225    -18      179
  SINCE DEC 1    207                       225    -18      179
  SINCE JUL 1    694                       920   -226      714

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE DEC 1      0                         0      0        0
  SINCE JAN 1   1994                      1549    445     1998
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    20   HIGHEST WIND DIRECTION    NW (320)
  HIGHEST GUST SPEED    25   HIGHEST GUST DIRECTION    NW (330)
  AVERAGE WIND SPEED     9.9


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.3


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  NO SIGNIFICANT WEATHER WAS OBSERVED.


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    58          1200 AM
 LOWEST     35          1200 PM
 AVERAGE    47

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


THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   48        68      1979
                                             1971
                                             1897
 MINIMUM TEMPERATURE (F)   34        12      1917
                                             1904
                                             1880


SUNRISE AND SUNSET
DECEMBER 11 2016......SUNRISE   717 AM EST   SUNSET   446 PM EST
DECEMBER 12 2016......SUNRISE   718 AM EST   SUNSET   447 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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