AFOS product CLIDCA
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CDUS41 KLWX 180527
CLIDCA


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC                  
1226 AM EST SUN JAN 18 2015


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

...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR JANUARY 17 2015...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2015


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         40    330 PM  74    1943  43     -3       49       
  MINIMUM         28    801 AM  -5    1982  28      0       31       
  AVERAGE         34                        36     -2       40      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          1.09 1994   0.09  -0.09     0.00    
  MONTH TO DATE    1.65                      1.53   0.12     2.37    
  SINCE DEC 1      5.15                      4.58   0.57     7.90    
  SINCE JAN 1      1.65                      1.53   0.12     2.37    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0           5.5  1935   0.2   -0.2              
  MONTH TO DATE    2.6                       2.6    0.0              
  SINCE JUL 1      2.6                       5.4   -2.8              
  SNOW DEPTH       0                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       31                        29      2       25       
  MONTH TO DATE  517                       493     24      495       
  SINCE DEC 1   1166                      1279   -113     1191       
  SINCE JUL 1   1773                      1974   -201     1899       
                                                                     
 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    20   HIGHEST WIND DIRECTION     S (190)      
  HIGHEST GUST SPEED    24   HIGHEST GUST DIRECTION     S (200)      
  AVERAGE WIND SPEED     8.9                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.4                                              

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

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    70          1100 PM                                     
 LOWEST     40           200 PM                                     
 AVERAGE    55                                                       

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

                                                                     
THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   43        69      1990                    
 MINIMUM TEMPERATURE (F)   28        -6      1893                    

                                                                     
SUNRISE AND SUNSET                                                   
JANUARY 18 2015.......SUNRISE   724 AM EST   SUNSET   513 PM EST   
JANUARY 19 2015.......SUNRISE   723 AM EST   SUNSET   515 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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