101  
CDUS41 KLWX 010538  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
1238 AM EST MON MAR 01 2021  
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR FEBRUARY 28 2021
 
 
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)  
YESTERDAY  
MAXIMUM 47 9:19 AM 70 1965 50 -3 45  
1976  
MINIMUM 43 12:36 AM 10 1993 28 15 27  
2014  
AVERAGE 45 39 6 36  
 
PRECIPITATION (IN)  
YESTERDAY 0.97 1.13 1966 0.09 0.88 T  
MONTH TO DATE 4.28 2.74 1.54 3.24  
SINCE DEC 1 11.97 8.38 3.59 9.54  
SINCE JAN 1 6.16 5.42 0.74 6.57  
 
SNOWFALL (IN)  
YESTERDAY 0.0 4.1 2005 0.2 -0.2 T  
MONTH TO DATE 6.4 7.6 -1.2 T  
SINCE DEC 1 12.0 18.4 -6.4 2.9  
SINCE JUL 1 12.0 18.9 -6.9 2.9  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 20 26 -6 29  
MONTH TO DATE 820 807 13 644  
SINCE DEC 1 2526 2675 -149 2248  
SINCE JUL 1 3193 3591 -398 3111  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 0 0 0 0    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION E (100)  
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION SE (130)  
AVERAGE WIND SPEED 4.2  
 
SKY COVER  
AVERAGE SKY COVER 1.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 7:00 PM  
LOWEST 86 9:00 AM  
AVERAGE 93  
   
......................................................
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 50 77 1972  
MINIMUM TEMPERATURE (F) 29 11 1980  
 
SUNRISE AND SUNSET  
MARCH 1 2021.........SUNRISE 6:42 AM EST SUNSET 6:03 PM EST  
MARCH 2 2021.........SUNRISE 6:40 AM EST SUNSET 6:04 PM EST  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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