AFOS product CLIDCA
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CDUS41 KLWX 110523
CLIDCA


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1222 AM EST TUE DEC 11 2012


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

...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR DECEMBER 10 2012...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2012


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         63    713 PM  67    1966  48     15       47
                                      1939
  MINIMUM         49    158 AM   4    1876  34     15       32
  AVERAGE         56                        41     15       40

PRECIPITATION (IN)
  YESTERDAY        0.01          2.23 1878   0.11  -0.10     0.00
  MONTH TO DATE    0.22                      1.08  -0.86     3.34
  SINCE DEC 1      0.22                      1.08  -0.86     3.34
  SINCE JAN 1     29.64                     37.77  -8.13    45.33

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

DEGREE DAYS
 HEATING
  YESTERDAY        9                        24    -15       25
  MONTH TO DATE  146                       225    -79      190
  SINCE DEC 1    146                       225    -79      190
  SINCE JUL 1    857                       920    -63      785

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE DEC 1      0                         0      0        0
  SINCE JAN 1   1975                      1549    426     1925
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    15   HIGHEST WIND DIRECTION    SW (210)
  HIGHEST GUST SPEED    20   HIGHEST GUST DIRECTION     S (200)
  AVERAGE WIND SPEED     7.4


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 1.0


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100          1200 AM
 LOWEST     78           700 PM
 AVERAGE    89

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


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 2012......SUNRISE   717 AM EST   SUNSET   446 PM EST
DECEMBER 12 2012......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.




$$