184  
CDUS41 KLWX 192123  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
523 PM EDT FRI MAR 19 2021  
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MARCH 19 2021
 
 
VALID TODAY AS OF 0500 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 49 3:48 PM 76 2012 57 -8 74  
MINIMUM 36 8:12 AM 10 1967 34 2 47  
AVERAGE 43 45 -2 61  
 
PRECIPITATION (IN)  
TODAY 0.00 1.07 1975 0.12 -0.12 0.29  
MONTH TO DATE 0.59 1.93 -1.34 0.95  
SINCE MAR 1 0.59 1.93 -1.34 0.95  
SINCE JAN 1 6.75 7.35 -0.60 7.52  
 
SNOWFALL (IN)  
TODAY 0.0 1.5 1997 0.0 0.0 0.0  
MONTH TO DATE T 2.1 -2.1 T  
SINCE MAR 1 T 2.1 -2.1 T  
SINCE JUL 1 12.0 21.0 -9.0 2.9  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 22 20 2 4  
MONTH TO DATE 375 435 -60 293  
SINCE MAR 1 375 435 -60 293  
SINCE JUL 1 3568 4025 -457 3437  
 
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 26 HIGHEST WIND DIRECTION N (20)  
HIGHEST GUST SPEED 36 HIGHEST GUST DIRECTION N (10)  
AVERAGE WIND SPEED 17.7  
 
SKY COVER  
AVERAGE SKY COVER 0.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 86 12:00 AM  
LOWEST 25 3:00 PM  
AVERAGE 56  
   
......................................................
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 57 80 2020  
MINIMUM TEMPERATURE (F) 34 18 1981  
 
SUNRISE AND SUNSET  
MARCH 19 2021.........SUNRISE 7:14 AM EDT SUNSET 7:21 PM EDT  
MARCH 20 2021.........SUNRISE 7:13 AM EDT SUNSET 7:22 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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