192  
CDUS41 KLWX 232122  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
522 PM EDT TUE MAR 23 2021  
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MARCH 23 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 69 2:00 PM 83 1994 58 11 44  
2012  
MINIMUM 35 4:52 AM 17 1969 35 0 40  
AVERAGE 52 46 6 42  
 
PRECIPITATION (IN)  
TODAY 0.00 2.21 1991 0.11 -0.11 0.17  
MONTH TO DATE 0.59 2.39 -1.80 1.12  
SINCE MAR 1 0.59 2.39 -1.80 1.12  
SINCE JAN 1 6.75 7.81 -1.06 7.69  
 
SNOWFALL (IN)  
TODAY 0.0 T 1968 0.0 0.0 0.0  
1971  
1972  
MONTH TO DATE T 2.4 -2.4 T  
SINCE MAR 1 T 2.4 -2.4 T  
SINCE JUL 1 12.0 21.3 -9.3 2.9  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 13 19 -6 23  
MONTH TO DATE 448 512 -64 346  
SINCE MAR 1 448 512 -64 346  
SINCE JUL 1 3641 4102 -461 3490  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 3  
SINCE MAR 1 0 0 0 3  
SINCE JAN 1 0 0 0 3    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION E (110)  
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION E (110)  
AVERAGE WIND SPEED 4.9  
 
SKY COVER  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 85 5:00 AM  
LOWEST 49 2:00 PM  
AVERAGE 67  
   
......................................................
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 59 79 1988  
1994  
MINIMUM TEMPERATURE (F) 35 19 2014  
 
SUNRISE AND SUNSET  
MARCH 23 2021.........SUNRISE 7:08 AM EDT SUNSET 7:25 PM EDT  
MARCH 24 2021.........SUNRISE 7:07 AM EDT SUNSET 7:26 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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