924  
CDUS41 KLWX 300525  
CLIDCA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
125 AM EDT SAT SEP 30 2023  
   
...............................
 
 
...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR SEPTEMBER 29 2023...  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1871 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 72 3:07 PM 93 1954 76 -4 71  
MINIMUM 62 7:11 AM 40 1942 59 3 55  
AVERAGE 67 67 0 63  
 
PRECIPITATION (IN)  
YESTERDAY T 2.68 1924 0.13 -0.13 0.00  
MONTH TO DATE 3.60 3.79 -0.19 1.95  
SINCE SEP 1 3.60 3.79 -0.19 1.95  
SINCE JAN 1 26.09 31.70 -5.61 33.90  
 
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 T  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 2 -2 2  
MONTH TO DATE 9 12 -3 12  
SINCE SEP 1 9 12 -3 12  
SINCE JUL 1 9 12 -3 12  
 
COOLING  
YESTERDAY 2 4 -2 0  
MONTH TO DATE 263 234 29 258  
SINCE SEP 1 263 234 29 258  
SINCE JAN 1 1629 1686 -57 1766    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION N (360)  
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION N (10)  
AVERAGE WIND SPEED 10.1  
 
SKY COVER  
AVERAGE SKY COVER 1.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 7:00 AM  
LOWEST 73 1:00 PM  
AVERAGE 83  
   
......................................................
 
 
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 2023.....SUNRISE 7:03 AM EDT SUNSET 6:53 PM EDT  
OCTOBER 1 2023.......SUNRISE 7:04 AM EDT SUNSET 6:51 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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