AFOS product CLIDCA
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CDUS41 KLWX 090524
CLIDCA


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC                  
124 AM EDT WED MAY 9 2012


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

...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR MAY 8 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         75   1108 AM  92    1936  73      2       74       
  MINIMUM         61    535 AM  39    1974  54      7       54       
                                      1947                          
                                      1925                          
  AVERAGE         68                        64      4       64      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.03          2.14 1886   0.13  -0.10      T      
  MONTH TO DATE    0.32                      0.96  -0.64     0.59    
  SINCE MAR 1      3.26                      7.50  -4.24     8.19    
  SINCE JAN 1      7.78                     12.93  -5.15    12.56    
                                                                     
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                         3     -3        1       
  MONTH TO DATE    0                        33    -33       38       
  SINCE MAR 1    492                       871   -379      857       
  SINCE JUL 1   3041                      3979   -938     3975       
                                                                     
 COOLING                                                             
  YESTERDAY        3                         2      1        0       
  MONTH TO DATE   36                        14     22        8       
  SINCE MAR 1     86                        40     46       52       
  SINCE JAN 1     86                        40     46       52       
..................................................................


WIND (MPH)                                                           
  HIGHEST WIND SPEED    21   HIGHEST WIND DIRECTION     S (190)      
  HIGHEST GUST SPEED    25   HIGHEST GUST DIRECTION     S (200)      
  AVERAGE WIND SPEED    12.3                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 1.0                                              

                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  LIGHT RAIN                                                         

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    78           500 AM                                     
 LOWEST     60          1200 AM                                     
 AVERAGE    69                                                       

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

                                                                     
THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   74        96      1963                    
 MINIMUM TEMPERATURE (F)   54        34      1947                    

                                                                     
SUNRISE AND SUNSET                                                   
MAY  9 2012...........SUNRISE   601 AM EDT   SUNSET   809 PM EDT   
MAY 10 2012...........SUNRISE   600 AM EDT   SUNSET   810 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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