AFOS product CLIDCA
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CDUS41 KLWX 180520
CLIDCA


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC                  
120 AM EDT THU OCT 18 2012


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

...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR OCTOBER 17 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         69    244 PM  86    1938  68      1       69       
                                      1908                          
  MINIMUM         46    630 AM  33    1893  50     -4       57       
                                      1886                          
  AVERAGE         58                        59     -1       63      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          2.52 1932   0.10  -0.10     0.00    
  MONTH TO DATE    0.74                      1.87  -1.13     1.88    
  SINCE SEP 1      5.03                      5.59  -0.56    10.72    
  SINCE JAN 1     23.74                     31.99  -8.25    38.02    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0          MM      MM   0.0    0.0              
  MONTH TO DATE    0.0                       0.0    0.0              
  SINCE JUL 1      0.0                       0.0    0.0              
  SNOW DEPTH       0                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY        7                         7      0        2       
  MONTH TO DATE   87                        82      5       64       
  SINCE SEP 1     92                       106    -14       78       
  SINCE JUL 1     92                       106    -14       78       
                                                                     
 COOLING                                                             
  YESTERDAY        0                         1     -1        0       
  MONTH TO DATE   33                        29      4       14       
  SINCE SEP 1    262                       231     31      222       
  SINCE JAN 1   1963                      1542    421     1924       
..................................................................


WIND (MPH)                                                           
  HIGHEST WIND SPEED    13   HIGHEST WIND DIRECTION     S (180)      
  HIGHEST GUST SPEED    16   HIGHEST GUST DIRECTION     S (170)      
  AVERAGE WIND SPEED     4.6                                         

                                                                     
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    86           300 AM                                     
 LOWEST     42           200 PM                                     
 AVERAGE    64                                                       

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

                                                                     
THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   68        85      1938                    
                                             1881                    
 MINIMUM TEMPERATURE (F)   50        34      1876                    

                                                                     
SUNRISE AND SUNSET                                                   
OCTOBER 18 2012.......SUNRISE   721 AM EDT   SUNSET   625 PM EDT   
OCTOBER 19 2012.......SUNRISE   722 AM EDT   SUNSET   623 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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