709  
CDUS41 KLWX 092130  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
530 PM EDT MON MAR 09 2026  
   
...............................  
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MARCH 9 2026  
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1960 TO 2026  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 76 3:59 PM 82 2016 52 24 60  
MINIMUM 37 6:41 AM 14 1996 32 5 26  
AVERAGE 57 42 15 43  
 
PRECIPITATION (IN)  
TODAY 0.00 0.99 2024 0.11 -0.11 0.00  
MONTH TO DATE 0.73 0.95 -0.22 0.48  
SINCE MAR 1 0.73 0.95 -0.22 0.48  
SINCE JAN 1 6.53 6.50 0.03 4.90  
 
SNOWFALL (IN)  
TODAY 0.0 8.9 1999 0.1 -0.1 0.0  
MONTH TO DATE 0.4 1.6 -1.2 0.0  
SINCE MAR 1 0.4 1.6 -1.2 0.0  
SINCE JUL 1 13.0 18.6 -5.6 15.5  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 8 23 -15 22  
MONTH TO DATE 149 219 -70 193  
SINCE MAR 1 149 219 -70 193  
SINCE JUL 1 3778 3729 49 3515  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE MAR 1 0 0 0 0  
SINCE JAN 1 0 0 0 0    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION S (190)  
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION SW (230)  
AVERAGE WIND SPEED 4.3  
 
SKY COVER  
AVERAGE SKY COVER 0.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 89 4:00 AM  
LOWEST 29 3:00 PM  
AVERAGE 59  
   
......................................................  
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 52 80 2016  
MINIMUM TEMPERATURE (F) 32 7 1996  
 
SUNRISE AND SUNSET  
MARCH 9 2026.........SUNRISE 7:30 AM EDT SUNSET 7:11 PM EDT  
MARCH 10 2026.........SUNRISE 7:29 AM EDT SUNSET 7:12 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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