AFOS product CLIIAD
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CLIIAD

CLIMATE REPORT 
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 
1223 AM EST SAT DEC 24 2022

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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR DECEMBER 23 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         45   3:27 AM  68    1990  45      0       43        
  MINIMUM         10  11:59 PM   4    1989  28    -18       20        
  AVERAGE         28                        36     -8       32     

PRECIPITATION (IN)                                                    
  YESTERDAY        0.22          1.30 2004   0.11   0.11     0.00     
  MONTH TO DATE    4.70                      2.54   2.16     0.05     
  SINCE DEC 1      4.70                      2.54   2.16     0.05     
  SINCE JAN 1     40.51                     42.48  -1.97    34.55     

SNOWFALL (IN)                                                              
  YESTERDAY        T             7.5  1963   0.1   -0.1      0.0      
  MONTH TO DATE    T                         1.9   -1.9      0.0      
  SINCE DEC 1      T                         1.9   -1.9      0.0      
  SINCE JUL 1      T                         2.2   -2.2       T       
  SNOW DEPTH       0                                                 

DEGREE DAYS                                                           
 HEATING                                                              
  YESTERDAY       37                        29      8       33        
  MONTH TO DATE  612                       609      3      493        
  SINCE DEC 1    612                       609      3      493        
  SINCE JUL 1   1446                      1509    -63     1219        

 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    39   HIGHEST WIND DIRECTION     W (290)       
  HIGHEST GUST SPEED    55   HIGHEST GUST DIRECTION    NW (300)       
  AVERAGE WIND SPEED    16.5                                        


SKY COVER                                                             
  AVERAGE SKY COVER 0.6                                                 


WEATHER CONDITIONS                                                    
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                         
  RAIN                                                                
  LIGHT RAIN                                                          
  SLEET                                                               
  FOG                                                                 


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100           1:00 AM                                      
 LOWEST     36           2:00 PM                                      
 AVERAGE    68                                                        

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


THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                     
 MAXIMUM TEMPERATURE (F)   45        71      2015                      
 MINIMUM TEMPERATURE (F)   28         1      1983                      


SUNRISE AND SUNSET                                                    
DECEMBER 24 2022......SUNRISE   7:26 AM EST   SUNSET   4:53 PM EST     
DECEMBER 25 2022......SUNRISE   7:27 AM EST   SUNSET   4:53 PM EST     


-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.




$$