849  
CDUS41 KLWX 252131  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
431 PM EST MON JAN 25 2021  
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JANUARY 25 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 38 3:54 PM 73 1967 43 -5 51  
MINIMUM 33 1:26 AM -5 1987 24 9 36  
AVERAGE 36 33 3 44  
 
PRECIPITATION (IN)  
TODAY 0.00 1.57 1978 0.09 -0.09 1.47  
MONTH TO DATE 1.26 2.13 -0.87 3.33  
SINCE DEC 1 7.07 5.09 1.98 6.30  
SINCE JAN 1 1.26 2.13 -0.87 3.33  
 
SNOWFALL (IN)  
TODAY 0.0 10.3 2000 0.3 -0.3 0.0  
MONTH TO DATE T 5.6 -5.6 2.3  
SINCE DEC 1 2.4 9.1 -6.7 2.9  
SINCE JUL 1 2.4 9.6 -7.2 2.9  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 29 32 -3 21  
MONTH TO DATE 703 800 -97 638  
SINCE DEC 1 1505 1682 -177 1438  
SINCE JUL 1 2172 2598 -426 2301  
 
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 9 HIGHEST WIND DIRECTION NE (60)  
HIGHEST GUST SPEED 13 HIGHEST GUST DIRECTION E (90)  
AVERAGE WIND SPEED 3.7  
 
SKY COVER  
AVERAGE SKY COVER 1.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 72 1:00 AM  
LOWEST 50 3:00 PM  
AVERAGE 61  
   
......................................................
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 43 70 1967  
MINIMUM TEMPERATURE (F) 24 3 1987  
 
SUNRISE AND SUNSET  
JANUARY 25 2021.......SUNRISE 7:21 AM EST SUNSET 5:23 PM EST  
JANUARY 26 2021.......SUNRISE 7:21 AM EST SUNSET 5:24 PM EST  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab VA Page
The Nexlab MD Page
The Nexlab WV Page Main Text Page