Climatological Report (Daily)
Issued by NWS Sterling, VA

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CDUS41 KLWX 210524
CLIDCA


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1224 AM EST SUN DEC 21 2014


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

...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR DECEMBER 20 2014...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2014


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         39    630 PM  66    1889  45     -6       60
                                      1877
  MINIMUM         30    702 AM   5    1942  31     -1       44
  AVERAGE         35                        38     -3       52

PRECIPITATION (IN)
  YESTERDAY        0.00          1.56 1957   0.09  -0.09     0.00
  MONTH TO DATE    2.08                      2.06   0.02     3.13
  SINCE DEC 1      2.08                      2.06   0.02     3.13
  SINCE JAN 1     42.99                     38.75   4.24    41.84

SNOWFALL (IN)
  YESTERDAY        0.0           5.0  1892   0.1   -0.1
  MONTH TO DATE    T                         1.3   -1.3
  SINCE JUL 1      T                         1.8   -1.8
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       30                        27      3       13
  MONTH TO DATE  424                       480    -56      473
  SINCE DEC 1    424                       480    -56      473
  SINCE JUL 1   1031                      1175   -144     1181

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE DEC 1      0                         0      0        0
  SINCE JAN 1   1712                      1549    163     1719
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    10   HIGHEST WIND DIRECTION    NW (330)
  HIGHEST GUST SPEED    13   HIGHEST GUST DIRECTION    NW (330)
  AVERAGE WIND SPEED     4.6


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.6


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    63           700 AM
 LOWEST     44           400 PM
 AVERAGE    54

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


THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   45        72      2013
 MINIMUM TEMPERATURE (F)   31         4      1942


SUNRISE AND SUNSET
DECEMBER 21 2014......SUNRISE   723 AM EST   SUNSET   450 PM EST
DECEMBER 22 2014......SUNRISE   723 AM EST   SUNSET   450 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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