019  
CDUS41 KLWX 242122  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
522 PM EDT THU JUN 24 2021  
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JUNE 24 2021
 
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1960 TO 2021  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 78 3:40 PM 97 2010 86 -8 84  
MINIMUM 50 5:09 AM 46 1979 64 -14 68  
AVERAGE 64 75 -11 76  
 
PRECIPITATION (IN)  
TODAY 0.00 1.76 1994 0.14 -0.14 0.00  
MONTH TO DATE 3.23 3.45 -0.22 4.94  
SINCE JUN 1 3.23 3.45 -0.22 4.94  
SINCE JAN 1 16.81 20.69 -3.88 21.46  
 
SNOWFALL (IN)  
TODAY 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 12.0 21.0 -9.0 2.9  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 1 0 1 0  
MONTH TO DATE 6 11 -5 5  
SINCE JUN 1 6 11 -5 5  
SINCE JUL 1 4158 4603 -445 4154  
 
COOLING  
TODAY 0 10 -10 11  
MONTH TO DATE 205 174 31 200  
SINCE JUN 1 205 174 31 200  
SINCE JAN 1 314 280 34 277    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION E (110)  
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION E (110)  
AVERAGE WIND SPEED 2.6  
 
SKY COVER  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 92 5:00 AM  
LOWEST 38 11:00 AM  
AVERAGE 65  
   
......................................................
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 86 97 1966  
MINIMUM TEMPERATURE (F) 65 44 1979  
 
SUNRISE AND SUNSET  
JUNE 24 2021..........SUNRISE 5:45 AM EDT SUNSET 8:39 PM EDT  
JUNE 25 2021..........SUNRISE 5:46 AM EDT SUNSET 8:39 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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