AFOS product CLIDCA
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CDUS41 KLWX 220520
CLIDCA


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC                  
120 AM EDT SUN APR 22 2012


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

...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR APRIL 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         82    418 PM  89    1976  69     13       65       
                                      1957                          
  MINIMUM         57   1159 PM  31    1875  49      8       48       
  AVERAGE         70                        59     11       57      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.16          1.58 1929   0.10   0.06     0.00    
  MONTH TO DATE    0.37                      2.14  -1.77     2.01    
  SINCE MAR 1      1.39                      5.62  -4.23     6.41    
  SINCE JAN 1      5.91                     11.05  -5.14    10.78    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0           0.0  2002   0.0    0.0              
                                      2001                          
  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                         7     -7        8       
  MONTH TO DATE  130                       214    -84      191       
  SINCE MAR 1    402                       782   -380      785       
  SINCE JUL 1   2951                      3890   -939     3903       
                                                                     
 COOLING                                                             
  YESTERDAY        5                         1      4        0       
  MONTH TO DATE   27                        12     15       11       
  SINCE MAR 1     50                        14     36       11       
  SINCE JAN 1     50                        14     36       11       
..................................................................


WIND (MPH)                                                           
  HIGHEST WIND SPEED    29   HIGHEST WIND DIRECTION    NW (320)      
  HIGHEST GUST SPEED    38   HIGHEST GUST DIRECTION    NW (320)      
  AVERAGE WIND SPEED    12.3                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.7                                              

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

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    84           200 AM                                     
 LOWEST     31           400 PM                                     
 AVERAGE    58                                                       

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

                                                                     
THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   69        93      1985                    
 MINIMUM TEMPERATURE (F)   49        30      1875                    

                                                                     
SUNRISE AND SUNSET                                                   
APRIL 22 2012.........SUNRISE   621 AM EDT   SUNSET   752 PM EDT   
APRIL 23 2012.........SUNRISE   620 AM EDT   SUNSET   753 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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