192  
CDUS41 KLWX 040535  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
1235 AM EST SUN FEB 04 2024  
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR FEBRUARY 3 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 52 3:14 PM 67 2020 44 8 38  
MINIMUM 30 11:59 PM 1 1965 25 5 17  
AVERAGE 41 34 7 28  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.33 2014 0.09 -0.09 0.00  
MONTH TO DATE T 0.28 -0.28 0.06  
SINCE DEC 1 11.75 6.52 5.23 6.37  
SINCE JAN 1 6.00 3.22 2.78 1.42  
 
SNOWFALL (IN)  
YESTERDAY 0.0 3.5 1996 0.3 -0.3 0.0  
MONTH TO DATE 0.0 0.9 -0.9 0.4  
SINCE DEC 1 10.0 10.6 -0.6 0.4  
SINCE JUL 1 10.0 10.9 -0.9 0.4  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 24 31 -7 37  
MONTH TO DATE 67 93 -26 101  
SINCE DEC 1 1609 1902 -293 1666  
SINCE JUL 1 2380 2802 -422 2500  
 
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 18 HIGHEST WIND DIRECTION N (20)  
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION N (10)  
AVERAGE WIND SPEED 5.9  
 
SKY COVER  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 78 11:00 PM  
LOWEST 37 3:00 PM  
AVERAGE 58  
   
......................................................
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 44 70 1991  
MINIMUM TEMPERATURE (F) 25 4 1965  
1996  
 
SUNRISE AND SUNSET  
FEBRUARY 4 2024......SUNRISE 7:14 AM EST SUNSET 5:34 PM EST  
FEBRUARY 5 2024......SUNRISE 7:13 AM EST SUNSET 5:35 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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