AFOS product CLIDCA
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CDUS41 KLWX 220524
CLIDCA


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1221 AM EST SAT DEC 22 2012


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

...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR DECEMBER 21 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         59    249 AM  68    1923  45     14       61
  MINIMUM         39    616 PM   4    1942  31      8       47
  AVERAGE         49                        38     11       54

PRECIPITATION (IN)
  YESTERDAY        0.26          1.38 1905   0.09   0.17     0.12
  MONTH TO DATE    1.27                      2.15  -0.88     3.47
  SINCE DEC 1      1.27                      2.15  -0.88     3.47
  SINCE JAN 1     30.69                     38.84  -8.15    45.46

SNOWFALL (IN)
  YESTERDAY        0.0           5.3  1962   0.1   -0.1
  MONTH TO DATE    0.0                       1.4   -1.4
  SINCE JUL 1      T                         1.9   -1.9
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       16                        27    -11       11
  MONTH TO DATE  341                       507   -166      418
  SINCE DEC 1    341                       507   -166      418
  SINCE JUL 1   1052                      1202   -150     1013

 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    28   HIGHEST WIND DIRECTION     W (280)
  HIGHEST GUST SPEED    38   HIGHEST GUST DIRECTION     W (290)
  AVERAGE WIND SPEED    15.9


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.9


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    93           300 AM
 LOWEST     39           400 PM
 AVERAGE    66

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


THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   45        72      1889
 MINIMUM TEMPERATURE (F)   31         3      1872


SUNRISE AND SUNSET
DECEMBER 22 2012......SUNRISE   724 AM EST   SUNSET   450 PM EST
DECEMBER 23 2012......SUNRISE   724 AM EST   SUNSET   451 PM EST


-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.




$$