494  
CDUS41 KLWX 142121  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
521 PM EDT WED APR 14 2021  
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR APRIL 14 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 61 9:39 AM 87 1960 66 -5 57  
MINIMUM 48 1:52 AM 20 1975 42 6 38  
AVERAGE 55 54 1 48  
 
PRECIPITATION (IN)  
TODAY 0.18 2.13 1970 0.11 0.07 0.23  
MONTH TO DATE 1.27 1.66 -0.39 2.74  
SINCE MAR 1 3.54 5.04 -1.50 4.73  
SINCE JAN 1 9.70 10.46 -0.76 11.30  
 
SNOWFALL (IN)  
TODAY 0.0 0.0 2001 0.0 0.0 0.0  
2002  
MONTH TO DATE T 0.2 -0.2 0.0  
SINCE MAR 1 T 3.0 -3.0 T  
SINCE JUL 1 12.0 21.9 -9.9 2.9  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 10 12 -2 17  
MONTH TO DATE 138 190 -52 148  
SINCE MAR 1 653 837 -184 596  
SINCE JUL 1 3846 4427 -581 3740  
 
COOLING  
TODAY 0 1 -1 0  
MONTH TO DATE 5 2 3 0  
SINCE MAR 1 9 5 4 3  
SINCE JAN 1 9 5 4 3    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION SW (210)  
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION S (200)  
AVERAGE WIND SPEED 3.9  
 
SKY COVER  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 2:00 PM  
LOWEST 69 9:00 AM  
AVERAGE 81  
   
......................................................
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 67 87 1967  
MINIMUM TEMPERATURE (F) 42 28 1971  
1997  
 
SUNRISE AND SUNSET  
APRIL 14 2021.........SUNRISE 6:34 AM EDT SUNSET 7:46 PM EDT  
APRIL 15 2021.........SUNRISE 6:33 AM EDT SUNSET 7:47 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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