987  
CDUS41 KLWX 032122  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
522 PM EDT SAT APR 03 2021  
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR APRIL 3 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 56 3:56 PM 86 1981 62 -6 66  
MINIMUM 24 6:10 AM 23 1991 38 -14 45  
AVERAGE 40 50 -10 56  
 
PRECIPITATION (IN)  
TODAY 0.00 0.70 2008 0.13 -0.13 0.00  
MONTH TO DATE 0.27 0.37 -0.10 T  
SINCE MAR 1 2.54 3.75 -1.21 1.99  
SINCE JAN 1 8.70 9.17 -0.47 8.56  
 
SNOWFALL (IN)  
TODAY MM T 1987 0.1 MM 0.0  
2008  
2016  
MONTH TO DATE T 0.1 -0.1 0.0  
SINCE MAR 1 T 2.9 -2.9 T  
SINCE JUL 1 12.0 21.8 -9.8 2.9  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
TODAY 25 15 10 9  
MONTH TO DATE 77 46 31 41  
SINCE MAR 1 592 693 -101 489  
SINCE JUL 1 3785 4283 -498 3633  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE MAR 1 4 3 1 3  
SINCE JAN 1 4 3 1 3    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION N (350)  
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION NW (330)  
AVERAGE WIND SPEED 4.4  
 
SKY COVER  
AVERAGE SKY COVER 0.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 74 5:00 AM  
LOWEST 20 4:00 PM  
AVERAGE 47  
   
......................................................
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 63 85 2011  
MINIMUM TEMPERATURE (F) 39 22 1965  
2013  
 
SUNRISE AND SUNSET  
APRIL 3 2021.........SUNRISE 6:51 AM EDT SUNSET 7:36 PM EDT  
APRIL 4 2021.........SUNRISE 6:49 AM EDT SUNSET 7:37 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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