187  
CDUS41 KLWX 152129  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
429 PM EST MON FEB 15 2021  
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR FEBRUARY 15 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 37 3:17 PM 76 2018 46 -9 37  
MINIMUM 34 8:54 AM 6 2015 26 8 15  
AVERAGE 36 36 0 26  
 
PRECIPITATION (IN)  
TODAY 0.01 0.52 1992 0.10 -0.09 0.00  
MONTH TO DATE 1.34 1.48 -0.14 2.13  
SINCE DEC 1 9.03 7.12 1.91 8.43  
SINCE JAN 1 3.22 4.16 -0.94 5.46  
 
SNOWFALL (IN)  
TODAY 0.0 4.2 2003 0.3 -0.3 0.0  
MONTH TO DATE 5.2 4.5 0.7 T  
SINCE DEC 1 10.8 15.3 -4.5 2.9  
SINCE JUL 1 10.8 15.8 -5.0 2.9  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 29 29 0 39  
MONTH TO DATE 457 451 6 326  
SINCE DEC 1 2163 2319 -156 1930  
SINCE JUL 1 2830 3235 -405 2793  
 
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 12 HIGHEST WIND DIRECTION N (350)  
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION N (10)  
AVERAGE WIND SPEED 6.4  
 
SKY COVER  
AVERAGE SKY COVER 1.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
RAIN  
LIGHT RAIN  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 89 4:00 PM  
LOWEST 69 10:00 AM  
AVERAGE 79  
   
......................................................
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 47 70 1976  
MINIMUM TEMPERATURE (F) 26 6 2015  
 
SUNRISE AND SUNSET  
FEBRUARY 15 2021......SUNRISE 7:01 AM EST SUNSET 5:48 PM EST  
FEBRUARY 16 2021......SUNRISE 6:59 AM EST SUNSET 5:49 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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