AFOS product CLIIAD
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CLIIAD

CLIMATE REPORT 
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 
1224 AM EST THU DEC 15 2022

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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR DECEMBER 14 2022...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1960 TO 2022


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST      
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL           
...................................................................
TEMPERATURE (F)                                                          
 YESTERDAY                                                           
  MAXIMUM         42   1:50 PM  69    2015  47     -5       59        
  MINIMUM         20   6:41 AM   3    1989  29     -9       26        
  AVERAGE         31                        38     -7       43     

PRECIPITATION (IN)                                                    
  YESTERDAY        T             1.24 2020   0.11  -0.11     0.00     
  MONTH TO DATE    0.40                      1.59  -1.19     0.05     
  SINCE DEC 1      0.40                      1.59  -1.19     0.05     
  SINCE JAN 1     36.21                     41.53  -5.32    34.55     

SNOWFALL (IN)                                                              
  YESTERDAY       MM             3.6  2003   0.1   MM        0.0      
  MONTH TO DATE    0.0                       1.1   -1.1      0.0      
  SINCE DEC 1      0.0                       1.1   -1.1      0.0      
  SINCE JUL 1      T                         1.4   -1.4       T       
  SNOW DEPTH       0                                                 

DEGREE DAYS                                                           
 HEATING                                                              
  YESTERDAY       34                        27      7       22        
  MONTH TO DATE  348                       357     -9      292        
  SINCE DEC 1    348                       357     -9      292        
  SINCE JUL 1   1182                      1257    -75     1018        

 COOLING                                                              
  YESTERDAY        0                         0      0        0        
  MONTH TO DATE    0                         0      0        0        
  SINCE DEC 1      0                         0      0        0        
  SINCE JAN 1   1376                      1231    145     1480        
...................................................................


WIND (MPH)                                                            
  HIGHEST WIND SPEED    10   HIGHEST WIND DIRECTION     N (20)        
  HIGHEST GUST SPEED    14   HIGHEST GUST DIRECTION     N (20)        
  AVERAGE WIND SPEED     3.7                                        


SKY COVER                                                             
  AVERAGE SKY COVER 0.7                                                 


WEATHER CONDITIONS                                                    
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                         
  LIGHT RAIN                                                          


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    84           7:00 AM                                      
 LOWEST     36           3:00 PM                                      
 AVERAGE    60                                                        

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


THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                     
 MAXIMUM TEMPERATURE (F)   47        71      1971                      
 MINIMUM TEMPERATURE (F)   29         5      1989                      


SUNRISE AND SUNSET                                                    
DECEMBER 15 2022......SUNRISE   7:21 AM EST   SUNSET   4:49 PM EST     
DECEMBER 16 2022......SUNRISE   7:22 AM EST   SUNSET   4:49 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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