AFOS product CLIDCA
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CDUS41 KLWX 290521
CLIDCA


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC                  
1221 AM EST SUN JAN 29 2012


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

...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR JANUARY 28 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         55    606 PM  73    1949  44     11       38       
  MINIMUM         33    650 AM  -2    1935  29      4       30       
  AVERAGE         44                        36      8       34      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          2.15 1922   0.10  -0.10     0.07    
  MONTH TO DATE    2.19                      2.53  -0.34     2.25    
  SINCE DEC 1      7.09                      5.58   1.51     4.03    
  SINCE JAN 1      2.19                      2.53  -0.34     2.25    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0          21.0  1922   0.2   -0.2              
  MONTH TO DATE    1.7                       4.9   -3.2              
  SINCE JUL 1      1.7                       7.7   -6.0              
  SNOW DEPTH       0                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       21                        29     -8       31       
  MONTH TO DATE  686                       812   -126      872       
  SINCE DEC 1   1299                      1598   -299     1805       
  SINCE JUL 1   1894                      2293   -399     2377       
                                                                     
 COOLING                                                             
  YESTERDAY        0                         0      0        0       
  MONTH TO DATE    0                         0      0        0       
  SINCE DEC 1      0                         0      0        0       
  SINCE JAN 1      0                         0      0        0       
..................................................................


WIND (MPH)                                                           
  HIGHEST WIND SPEED    25   HIGHEST WIND DIRECTION    NW (310)      
  HIGHEST GUST SPEED    35   HIGHEST GUST DIRECTION    NW (300)      
  AVERAGE WIND SPEED     8.3                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.3                                              

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

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    82           700 AM                                     
 LOWEST     29           800 PM                                     
 AVERAGE    56                                                       

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

                                                                     
THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   44        76      1975                    
 MINIMUM TEMPERATURE (F)   29         2      1873                    

                                                                     
SUNRISE AND SUNSET                                                   
JANUARY 29 2012.......SUNRISE   717 AM EST   SUNSET   526 PM EST   
JANUARY 30 2012.......SUNRISE   716 AM EST   SUNSET   527 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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