761  
CDUS41 KLWX 072140  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
440 PM EST TUE JAN 07 2025  
   
...............................  
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JANUARY 7 2025  
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1960 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 34 2:50 PM 71 2008 43 -9 51  
MINIMUM 22 7:50 AM -1 2018 26 -4 30  
AVERAGE 28 34 -6 41  
 
PRECIPITATION (IN)  
TODAY 0.00 1.56 1996 0.09 -0.09 0.00  
MONTH TO DATE 0.69 0.65 0.04 0.98  
SINCE DEC 1 4.03 3.95 0.08 6.73  
SINCE JAN 1 0.69 0.65 0.04 0.98  
 
SNOWFALL (IN)  
TODAY MM 19.8 1996 0.2 MM 0.0  
MONTH TO DATE 6.2 1.0 5.2 T  
SINCE DEC 1 6.3 3.8 2.5 0.5  
SINCE JUL 1 6.3 4.1 2.2 0.5  
SNOW DEPTH 4  
 
DEGREE DAYS  
HEATING  
TODAY 37 31 6 24  
MONTH TO DATE 231 213 18 197  
SINCE DEC 1 1060 1058 2 872  
SINCE JUL 1 1728 1958 -230 1643  
 
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 30 HIGHEST WIND DIRECTION NW (300)  
HIGHEST GUST SPEED 38 HIGHEST GUST DIRECTION NW (300)  
AVERAGE WIND SPEED 18.6  
 
SKY COVER  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 66 12:00 AM  
LOWEST 49 3:00 PM  
AVERAGE 58  
   
......................................................  
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 43 70 2008  
MINIMUM TEMPERATURE (F) 26 -4 1970  
 
SUNRISE AND SUNSET  
JANUARY 7 2025.......SUNRISE 7:29 AM EST SUNSET 5:04 PM EST  
JANUARY 8 2025.......SUNRISE 7:29 AM EST SUNSET 5:05 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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