025  
CDUS41 KLWX 132125  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
425 PM EST SAT MAR 13 2021  
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MARCH 13 2021
 
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1981 TO 2010  
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 60 3:59 PM 87 1990 54 6 75  
MINIMUM 44 8:09 AM 16 1998 32 12 50  
AVERAGE 52 43 9 63  
 
PRECIPITATION (IN)  
TODAY 0.00 1.63 1977 0.10 -0.10 0.22  
MONTH TO DATE 0.18 1.25 -1.07 0.37  
SINCE MAR 1 0.18 1.25 -1.07 0.37  
SINCE JAN 1 6.34 6.67 -0.33 6.94  
 
SNOWFALL (IN)  
TODAY 0.0 13.9 1993 0.0 0.0 0.0  
MONTH TO DATE 0.0 1.6 -1.6 0.0  
SINCE MAR 1 0.0 1.6 -1.6 0.0  
SINCE JUL 1 12.0 20.5 -8.5 2.9  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 13 22 -9 2  
MONTH TO DATE 251 310 -59 195  
SINCE MAR 1 251 310 -59 195  
SINCE JUL 1 3444 3900 -456 3339  
 
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 18 HIGHEST WIND DIRECTION NW (310)  
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION NW (320)  
AVERAGE WIND SPEED 9.6  
 
SKY COVER  
AVERAGE SKY COVER 0.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 36 6:00 AM  
LOWEST 17 4:00 PM  
AVERAGE 27  
   
......................................................
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 55 88 1990  
MINIMUM TEMPERATURE (F) 32 15 1968  
1993  
 
SUNRISE AND SUNSET  
MARCH 13 2021.........SUNRISE 6:24 AM EST SUNSET 6:15 PM EST  
MARCH 14 2021.........SUNRISE 7:22 AM EDT SUNSET 7:16 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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