AFOS product CLIDCA
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CDUS41 KLWX 160524
CLIDCA


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC                  
124 AM EDT WED MAY 16 2012


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

...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR MAY 15 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         79    523 PM  94    1962  75      4       75       
                                      1900                          
  MINIMUM         67   1128 PM  40    1939  56     11       62       
  AVERAGE         73                        66      7       69      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        1.22          1.28 1949   0.14   1.08      T      
  MONTH TO DATE    2.36                      1.87   0.49     1.07    
  SINCE MAR 1      5.30                      8.41  -3.11     8.67    
  SINCE JAN 1      9.82                     13.84  -4.02    13.04    
                                                                     
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        0       
  MONTH TO DATE    4                        54    -50       47       
  SINCE MAR 1    496                       892   -396      866       
  SINCE JUL 1   3045                      4000   -955     3984       
                                                                     
 COOLING                                                             
  YESTERDAY        8                         3      5        4       
  MONTH TO DATE   55                        32     23       15       
  SINCE MAR 1    105                        58     47       59       
  SINCE JAN 1    105                        58     47       59       
..................................................................


WIND (MPH)                                                           
  HIGHEST WIND SPEED    23   HIGHEST WIND DIRECTION     S (160)      
  HIGHEST GUST SPEED    29   HIGHEST GUST DIRECTION     S (170)      
  AVERAGE WIND SPEED     5.4                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.9                                              

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

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    93           500 AM                                     
 LOWEST     62           200 PM                                     
 AVERAGE    78                                                       

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

                                                                     
THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   75        93      1911                    
 MINIMUM TEMPERATURE (F)   56        38      1920                    

                                                                     
SUNRISE AND SUNSET                                                   
MAY 16 2012...........SUNRISE   554 AM EDT   SUNSET   815 PM EDT   
MAY 17 2012...........SUNRISE   554 AM EDT   SUNSET   816 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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