130  
CDUS41 KLWX 300624  
CLIDCA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
224 AM EDT TUE SEP 30 2025  
   
...............................
 
 
...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR SEPTEMBER 29 2025...  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1871 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 78 2:49 PM 93 1954 76 2 72  
MINIMUM 66 6:04 AM 40 1942 59 7 68  
AVERAGE 72 67 5 70  
 
PRECIPITATION (IN)  
YESTERDAY T 2.68 1924 0.13 -0.13 0.05  
MONTH TO DATE 3.72 3.79 -0.07 2.23  
SINCE SEP 1 3.72 3.79 -0.07 2.23  
SINCE JAN 1 30.98 31.70 -0.72 31.32  
 
SNOWFALL (IN)  
YESTERDAY 0.0 MM MM 0.0 0.0 0.0  
MONTH TO DATE 0.0 0.0 0.0 0.0  
SINCE SEP 1 0.0 0.0 0.0 0.0  
SINCE JUL 1 0.0 0.0 0.0 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 2 -2 0  
MONTH TO DATE 0 12 -12 0  
SINCE SEP 1 0 12 -12 0  
SINCE JUL 1 0 12 -12 0  
 
COOLING  
YESTERDAY 7 4 3 5  
MONTH TO DATE 219 234 -15 231  
SINCE SEP 1 219 234 -15 231  
SINCE JAN 1 1684 1686 -2 1946    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION NE (40)  
HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION NE (50)  
AVERAGE WIND SPEED 4.5  
 
SKY COVER  
AVERAGE SKY COVER 0.9  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 1:00 AM  
LOWEST 66 1:00 PM  
AVERAGE 80  
   
......................................................
 
 
THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 75 91 1954  
1986  
MINIMUM TEMPERATURE (F) 59 38 1942  
 
SUNRISE AND SUNSET  
SEPTEMBER 30 2025.....SUNRISE 7:03 AM EDT SUNSET 6:52 PM EDT  
OCTOBER 1 2025.......SUNRISE 7:04 AM EDT SUNSET 6:50 PM EDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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