AFOS product CLIDCA
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CDUS41 KLWX 210524
CLIDCA


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC                  
122 AM EDT MON SEP 21 2015


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

...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR SEPTEMBER 20 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         82    213 PM  94    1895  78      4       84       
  MINIMUM         68   1159 PM  41    1916  61      7       64       
  AVERAGE         75                        69      6       74      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          1.43 1938   0.13  -0.13     0.00    
  MONTH TO DATE    0.27                      2.42  -2.15     0.43    
  SINCE SEP 1      0.27                      2.42  -2.15     0.43    
  SINCE JAN 1     33.16                     28.82   4.34    34.10    
                                                                     
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        0                         1     -1        0       
  MONTH TO DATE    0                         5     -5        0       
  SINCE SEP 1      0                         5     -5        0       
  SINCE JUL 1      0                         5     -5        0       
                                                                     
 COOLING                                                             
  YESTERDAY       10                         5      5        9       
  MONTH TO DATE  249                       164     85      226       
  SINCE SEP 1    249                       164     85      226       
  SINCE JAN 1   1923                      1475    448     1619       
..................................................................


WIND (MPH)                                                           
  HIGHEST WIND SPEED    18   HIGHEST WIND DIRECTION     N (360)      
  HIGHEST GUST SPEED    24   HIGHEST GUST DIRECTION     N (340)      
  AVERAGE WIND SPEED    10.7                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.7                                              

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

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    90           300 AM                                     
 LOWEST     39           300 PM                                     
 AVERAGE    65                                                       

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

                                                                     
THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   78        96      1895                    
 MINIMUM TEMPERATURE (F)   61        41      1956                    

                                                                     
SUNRISE AND SUNSET                                                   
SEPTEMBER 21 2015.....SUNRISE   655 AM EDT   SUNSET   707 PM EDT   
SEPTEMBER 22 2015.....SUNRISE   656 AM EDT   SUNSET   706 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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