AFOS product CLIIAD
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CDUS41 KLWX 160626
CLIIAD

CLIMATE REPORT 
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 
226 AM EDT MON JUN 16 2025

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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JUNE 15 2025...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1960 TO 2025


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST      
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL           
...................................................................
TEMPERATURE (F)                                                          
 YESTERDAY                                                           
  MAXIMUM         71   1:27 AM  99    1994  83    -12       84        
  MINIMUM         64  11:59 PM  42    1978  62      2       60        
  AVERAGE         68                        72     -4       72     

PRECIPITATION (IN)                                                    
  YESTERDAY        1.52          1.70 1960   0.15   1.37     0.00     
  MONTH TO DATE    4.74                      2.21   2.53     0.28     
  SINCE JUN 1      4.74                      2.21   2.53     0.28     
  SINCE JAN 1     18.66                     19.45  -0.79    17.58     

SNOWFALL (IN)                                                              
  YESTERDAY        0.0          MM      MM   0.0    0.0      0.0      
  MONTH TO DATE    0.0                       0.0    0.0      0.0      
  SINCE JUN 1      0.0                       0.0    0.0      0.0      
  SINCE JUL 1     15.5                      21.0   -5.5     11.7      
  SNOW DEPTH       0                                                 

DEGREE DAYS                                                           
 HEATING                                                              
  YESTERDAY        0                         0      0        0        
  MONTH TO DATE   15                        11      4        0        
  SINCE JUN 1     15                        11      4        0        
  SINCE JUL 1   4106                      4603   -497     3691        

 COOLING                                                              
  YESTERDAY        3                         8     -5        7        
  MONTH TO DATE  109                        93     16      119        
  SINCE JUN 1    109                        93     16      119        
  SINCE JAN 1    227                       199     28      302        
...................................................................


WIND (MPH)                                                            
  HIGHEST WIND SPEED    13   HIGHEST WIND DIRECTION     E (90)        
  HIGHEST GUST SPEED    17   HIGHEST GUST DIRECTION     E (70)        
  AVERAGE WIND SPEED     7.3                                        


SKY COVER                                                             
  AVERAGE SKY COVER 1.0                                                 


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100           3:00 AM                                      
 LOWEST     90          11:00 AM                                      
 AVERAGE    95                                                        

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


THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                     
 MAXIMUM TEMPERATURE (F)   83        96      1991                      
                                             1994                     
 MINIMUM TEMPERATURE (F)   62        47      1978                      


SUNRISE AND SUNSET                                                    
JUNE 16 2025..........SUNRISE   5:44 AM EDT   SUNSET   8:37 PM EDT     
JUNE 17 2025..........SUNRISE   5:44 AM EDT   SUNSET   8:38 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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