377  
CDUS41 KLWX 072134  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
534 PM EDT MON JUL 07 2025  
   
...............................  
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JULY 7 2025  
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 93 3:38 PM 101 1988 88 5 96  
2010  
2012  
MINIMUM 73 5:13 AM 47 1970 67 6 75  
AVERAGE 83 77 6 86  
 
PRECIPITATION (IN)  
TODAY 0.02 1.59 2005 0.13 -0.11 0.00  
MONTH TO DATE 0.41 0.95 -0.54 0.68  
SINCE JUN 1 7.34 5.25 2.09 1.37  
SINCE JAN 1 21.26 22.49 -1.23 18.67  
 
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 0.0 0.0 0.0 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE JUN 1 15 13 2 0  
SINCE JUL 1 0 0 0 0  
 
COOLING  
TODAY 18 12 6 21  
MONTH TO DATE 91 82 9 111  
SINCE JUN 1 412 320 92 465  
SINCE JAN 1 530 426 104 648    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION NW (300)  
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION NW (300)  
AVERAGE WIND SPEED 4.4  
 
SKY COVER  
AVERAGE SKY COVER 0.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 94 2:00 AM  
LOWEST 54 2:00 PM  
AVERAGE 74  
   
......................................................  
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 88 101 2012  
MINIMUM TEMPERATURE (F) 67 48 1983  
1984  
 
SUNRISE AND SUNSET  
JULY 7 2025..........SUNRISE 5:51 AM EDT SUNSET 8:38 PM EDT  
JULY 8 2025..........SUNRISE 5:52 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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