AFOS product CLIDCA
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CDUS41 KLWX 160538
CLIDCA


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1237 AM EST SUN DEC 16 2012


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

...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR DECEMBER 15 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         54    326 PM  71    1971  47      7       63
  MINIMUM         37    655 AM   6    1904  33      4       43
  AVERAGE         46                        40      6       53

PRECIPITATION (IN)
  YESTERDAY        0.00          1.38 1901   0.10  -0.10     0.01
  MONTH TO DATE    0.29                      1.59  -1.30     3.35
  SINCE DEC 1      0.29                      1.59  -1.30     3.35
  SINCE JAN 1     29.71                     38.28  -8.57    45.34

SNOWFALL (IN)
  YESTERDAY        0.0           4.5  1905   0.1   -0.1
  MONTH TO DATE    0.0                       1.0   -1.0
  SINCE JUL 1      T                         1.5   -1.5
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       19                        25     -6       12
  MONTH TO DATE  246                       349   -103      303
  SINCE DEC 1    246                       349   -103      303
  SINCE JUL 1    957                      1044    -87      898

 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    10   HIGHEST WIND DIRECTION     S (200)
  HIGHEST GUST SPEED    12   HIGHEST GUST DIRECTION    SE (130)
  AVERAGE WIND SPEED     4.4


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.8


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    85           400 AM
 LOWEST     46           300 PM
 AVERAGE    66

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


THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   46        74      1971
 MINIMUM TEMPERATURE (F)   32        10      1917


SUNRISE AND SUNSET
DECEMBER 16 2012......SUNRISE   720 AM EST   SUNSET   448 PM EST
DECEMBER 17 2012......SUNRISE   721 AM EST   SUNSET   448 PM EST


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




$$