937  
CDUS41 KLWX 072133  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
433 PM EST SUN FEB 07 2021  
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR FEBRUARY 7 2021
 
 
VALID TODAY AS OF 0400 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 43 2:43 AM 72 2017 45 -2 59  
MINIMUM 33 11:55 AM -1 1995 25 8 33  
AVERAGE 38 35 3 46  
 
PRECIPITATION (IN)  
TODAY 0.35 1.53 1965 0.10 0.25 0.36  
MONTH TO DATE 0.60 0.69 -0.09 1.18  
SINCE DEC 1 8.29 6.33 1.96 7.48  
SINCE JAN 1 2.48 3.37 -0.89 4.51  
 
SNOWFALL (IN)  
TODAY 1.8 10.5 1967 0.3 1.5 0.0  
MONTH TO DATE 4.5 2.2 2.3 0.0  
SINCE DEC 1 10.1 13.0 -2.9 2.9  
SINCE JUL 1 10.1 13.5 -3.4 2.9  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 27 30 -3 19  
MONTH TO DATE 197 215 -18 123  
SINCE DEC 1 1903 2083 -180 1727  
SINCE JUL 1 2570 2999 -429 2590  
 
COOLING  
TODAY 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 15 HIGHEST WIND DIRECTION S (180)  
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION S (180)  
AVERAGE WIND SPEED 6.1  
 
SKY COVER  
AVERAGE SKY COVER 0.9  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
RAIN  
LIGHT RAIN  
HEAVY SNOW  
SNOW  
LIGHT SNOW  
FOG  
FOG W/VISIBILITY <= 1/4 MILE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 96 7:00 AM  
LOWEST 47 2:00 AM  
AVERAGE 72  
   
......................................................
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 45 71 2017  
MINIMUM TEMPERATURE (F) 25 -6 1967  
 
SUNRISE AND SUNSET  
FEBRUARY 7 2021......SUNRISE 7:10 AM EST SUNSET 5:38 PM EST  
FEBRUARY 8 2021......SUNRISE 7:09 AM EST SUNSET 5:40 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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