172  
CDUS41 KLWX 240525  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
125 AM EDT TUE SEP 24 2024  
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR SEPTEMBER 23 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 68 2:11 AM 94 2019 77 -9 62  
MINIMUM 62 11:59 PM 33 1983 55 7 57  
AVERAGE 65 66 -1 60  
 
PRECIPITATION (IN)  
YESTERDAY 0.19 1.74 2003 0.12 0.07 1.51  
MONTH TO DATE 0.83 2.98 -2.15 5.19  
SINCE SEP 1 0.83 2.98 -2.15 5.19  
SINCE JAN 1 26.61 32.20 -5.59 24.41  
 
SNOWFALL (IN)  
YESTERDAY 0.0 MM MM 0.0 0.0 0.0  
MONTH TO DATE 0.0 0.0 0.0 T  
SINCE SEP 1 0.0 0.0 0.0 T  
SINCE JUL 1 0.0 0.0 0.0 T  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 2 -2 5  
MONTH TO DATE 11 20 -9 6  
SINCE SEP 1 11 20 -9 6  
SINCE JUL 1 13 21 -8 6  
 
COOLING  
YESTERDAY 0 3 -3 0  
MONTH TO DATE 97 134 -37 209  
SINCE SEP 1 97 134 -37 209  
SINCE JAN 1 1511 1190 321 1324    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION S (160)  
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION S (160)  
AVERAGE WIND SPEED 7.4  
 
SKY COVER  
AVERAGE SKY COVER 1.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 5:00 PM  
LOWEST 79 10:00 AM  
AVERAGE 86  
   
......................................................
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 76 97 2010  
MINIMUM TEMPERATURE (F) 55 30 1974  
 
SUNRISE AND SUNSET  
SEPTEMBER 24 2024.....SUNRISE 7:00 AM EDT SUNSET 7:03 PM EDT  
SEPTEMBER 25 2024.....SUNRISE 7:01 AM EDT SUNSET 7:01 PM EDT  
 
- 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