Climatological Report (Daily)
Issued by NWS Sterling, VA

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CDUS41 KLWX 200524
CLIDCA


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1224 AM EST SAT DEC 20 2014


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

...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR DECEMBER 19 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         43    245 PM  74    1924  46     -3       61
  MINIMUM         34   1159 PM   6    1884  32      2       30
  AVERAGE         39                        39      0       46

PRECIPITATION (IN)
  YESTERDAY        0.00          1.34 2009   0.10  -0.10     0.00
  MONTH TO DATE    2.08                      1.97   0.11     3.13
  SINCE DEC 1      2.08                      1.97   0.11     3.13
  SINCE JAN 1     42.99                     38.66   4.33    41.84

SNOWFALL (IN)
  YESTERDAY        0.0          15.0  2009   0.0    0.0
  MONTH TO DATE    T                         1.2   -1.2
  SINCE JUL 1      T                         1.7   -1.7
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       26                        26      0       19
  MONTH TO DATE  394                       453    -59      460
  SINCE DEC 1    394                       453    -59      460
  SINCE JUL 1   1001                      1148   -147     1168

 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    18   HIGHEST WIND DIRECTION    NW (310)
  HIGHEST GUST SPEED    26   HIGHEST GUST DIRECTION    NW (320)
  AVERAGE WIND SPEED    10.8


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.7


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    56          1000 PM
 LOWEST     43           400 PM
 AVERAGE    50

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


THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   45        66      1889
                                             1877
 MINIMUM TEMPERATURE (F)   31         5      1942


SUNRISE AND SUNSET
DECEMBER 20 2014......SUNRISE   722 AM EST   SUNSET   449 PM EST
DECEMBER 21 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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