AFOS product CLIIAD
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CDUS41 KLWX 190531
CLIIAD

CLIMATE REPORT 
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 
1231 AM EST THU JAN 19 2023

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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JANUARY 18 2023...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1960 TO 2023


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST      
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL           
...................................................................
TEMPERATURE (F)                                                          
 YESTERDAY                                                           
  MAXIMUM         58   1:48 PM  70    1990  42     16       40        
  MINIMUM         40   2:43 AM  -1    1994  25     15       24        
  AVERAGE         49                        34     15       32     

PRECIPITATION (IN)                                                    
  YESTERDAY        T             1.18 1980   0.09  -0.09     0.00     
  MONTH TO DATE    0.46                      1.70  -1.24     3.22     
  SINCE DEC 1      5.41                      5.00   0.41     3.68     
  SINCE JAN 1      0.46                      1.70  -1.24     3.22     

SNOWFALL (IN)                                                              
  YESTERDAY        0.0           4.2  1984   0.2   -0.2      0.0      
  MONTH TO DATE    0.0                       3.4   -3.4     10.4      
  SINCE DEC 1      T                         6.2   -6.2     10.4      
  SINCE JUL 1      T                         6.5   -6.5     10.4      
  SNOW DEPTH       0                                                 

DEGREE DAYS                                                           
 HEATING                                                              
  YESTERDAY       16                        31    -15       33        
  MONTH TO DATE  375                       554   -179      556        
  SINCE DEC 1   1237                      1399   -162     1171        
  SINCE JUL 1   2071                      2299   -228     1897        

 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    22   HIGHEST WIND DIRECTION    NW (320)       
  HIGHEST GUST SPEED    30   HIGHEST GUST DIRECTION    NW (320)       
  AVERAGE WIND SPEED     8.5                                        


SKY COVER                                                             
  AVERAGE SKY COVER 0.4                                                 


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    97          12:00 AM                                      
 LOWEST     46           1:00 PM                                      
 AVERAGE    72                                                        

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


THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                     
 MAXIMUM TEMPERATURE (F)   42        65      1972                      
 MINIMUM TEMPERATURE (F)   25        -6      1994                      


SUNRISE AND SUNSET                                                    
JANUARY 19 2023.......SUNRISE   7:25 AM EST   SUNSET   5:16 PM EST     
JANUARY 20 2023.......SUNRISE   7:25 AM EST   SUNSET   5:17 PM EST     


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




$$