677  
CDUS41 KLWX 280527  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
1227 AM EST WED FEB 28 2024  
   
...............................  
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR FEBRUARY 27 2024  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1960 TO 2024  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 63 12:14 PM 74 1997 49 14 54  
MINIMUM 40 4:06 AM 8 1968 29 11 32  
AVERAGE 52 39 13 43  
 
PRECIPITATION (IN)  
YESTERDAY 0.01 0.60 2000 0.09 -0.08 0.19  
MONTH TO DATE 1.33 2.51 -1.18 2.26  
SINCE DEC 1 13.08 8.75 4.33 8.57  
SINCE JAN 1 7.33 5.45 1.88 3.62  
 
SNOWFALL (IN)  
YESTERDAY 0.0 4.1 2003 0.2 -0.2 0.0  
MONTH TO DATE 1.7 6.8 -5.1 0.4  
SINCE DEC 1 11.7 16.5 -4.8 0.4  
SINCE JUL 1 11.7 16.8 -5.1 0.4  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 13 26 -13 22  
MONTH TO DATE 614 774 -160 552  
SINCE DEC 1 2156 2583 -427 2117  
SINCE JUL 1 2927 3483 -556 2951  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 3 0 3 0  
SINCE JAN 1 3 0 3 0    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION S (190)  
HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION S (190)  
AVERAGE WIND SPEED 9.7  
 
SKY COVER  
AVERAGE SKY COVER 0.8  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 83 11:00 PM  
LOWEST 42 11:00 AM  
AVERAGE 63  
   
......................................................  
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 49 70 1965  
1976  
MINIMUM TEMPERATURE (F) 29 10 1993  
2014  
 
SUNRISE AND SUNSET  
FEBRUARY 28 2024......SUNRISE 6:44 AM EST SUNSET 6:01 PM EST  
FEBRUARY 29 2024......SUNRISE 6:43 AM EST SUNSET 6:02 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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