AFOS product CLIDCA
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CDUS41 KLWX 010525
CLIDCA


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC                  
1225 AM EST WED FEB 1 2012


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

...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR JANUARY 31 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         66    248 PM  71    1916  44     22       37       
  MINIMUM         39    651 AM  -2    1905  29     10       29       
  AVERAGE         53                        37     16       33      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          1.18 1878   0.10  -0.10      T      
  MONTH TO DATE    2.19                      2.81  -0.62     2.25    
  SINCE DEC 1      7.09                      5.86   1.23     4.03    
  SINCE JAN 1      2.19                      2.81  -0.62     2.25    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0           5.7  1949   0.2   -0.2              
  MONTH TO DATE    1.7                       5.6   -3.9              
  SINCE JUL 1      1.7                       8.4   -6.7              
  SNOW DEPTH       0                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       12                        28    -16       32       
  MONTH TO DATE  746                       897   -151      965       
  SINCE DEC 1   1359                      1685   -326     1898       
  SINCE JUL 1   1954                      2380   -426     2470       
                                                                     
 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    21   HIGHEST WIND DIRECTION    SW (210)      
  HIGHEST GUST SPEED    25   HIGHEST GUST DIRECTION    SW (210)      
  AVERAGE WIND SPEED    11.1                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.5                                              

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

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    59           600 AM                                     
 LOWEST     24           500 PM                                     
 AVERAGE    42                                                       

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

                                                                     
THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   44        77      2002                    
 MINIMUM TEMPERATURE (F)   29         6      1935                    
                                             1900                    
                                             1899                    

                                                                     
SUNRISE AND SUNSET                                                   
FEBRUARY  1 2012......SUNRISE   715 AM EST   SUNSET   529 PM EST   
FEBRUARY  2 2012......SUNRISE   714 AM EST   SUNSET   530 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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