AFOS product CLIDCA
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CDUS41 KLWX 210521
CLIDCA


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
120 AM EDT MON MAY 21 2012


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

...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR MAY 20 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         81    121 PM  96    1996  76      5       72
  MINIMUM         59    502 AM  42    2002  58      1       55
  AVERAGE         70                        67      3       64

PRECIPITATION (IN)
  YESTERDAY        0.01          2.63 2005   0.13  -0.12      T
  MONTH TO DATE    2.37                      2.53  -0.16     1.59
  SINCE MAR 1      5.31                      9.07  -3.76     9.19
  SINCE JAN 1      9.83                     14.50  -4.67    13.56

SNOWFALL (IN)
  YESTERDAY        0.0          MM      MM   0.0    0.0
  MONTH TO DATE    0.0                       0.0    0.0
  SINCE JUL 1      2.0                      14.5  -12.5
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY        0                         2     -2        1
  MONTH TO DATE    4                        64    -60       48
  SINCE MAR 1    496                       902   -406      867
  SINCE JUL 1   3045                      4010   -965     3985

 COOLING
  YESTERDAY        5                         4      1        0
  MONTH TO DATE   78                        50     28       26
  SINCE MAR 1    128                        76     52       70
  SINCE JAN 1    128                        76     52       70
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    23   HIGHEST WIND DIRECTION     E (70)
  HIGHEST GUST SPEED    28   HIGHEST GUST DIRECTION     E (70)
  AVERAGE WIND SPEED    11.4


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.6


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    87          1100 PM
 LOWEST     31           800 AM
 AVERAGE    59

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


THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   77        95      1934
 MINIMUM TEMPERATURE (F)   58        41      1907


SUNRISE AND SUNSET
MAY 21 2012...........SUNRISE   551 AM EDT   SUNSET   819 PM EDT
MAY 22 2012...........SUNRISE   550 AM EDT   SUNSET   820 PM EDT


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




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