054  
CDUS41 KLWX 220524  
CLIDCA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
124 AM EDT FRI SEP 22 2023  
   
...............................
 
 
...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR SEPTEMBER 21 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 80 2:27 PM 96 1895 79 1 86  
MINIMUM 60 6:11 AM 41 1956 62 -2 65  
AVERAGE 70 71 -1 76  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 2.18 1979 0.13 -0.13 0.00  
MONTH TO DATE 1.34 2.78 -1.44 1.90  
SINCE SEP 1 1.34 2.78 -1.44 1.90  
SINCE JAN 1 23.83 30.69 -6.86 33.85  
 
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 1 -1 0  
MONTH TO DATE 0 2 -2 0  
SINCE SEP 1 0 2 -2 0  
SINCE JUL 1 0 2 -2 0  
 
COOLING  
YESTERDAY 5 6 -1 11  
MONTH TO DATE 255 194 61 240  
SINCE SEP 1 255 194 61 240  
SINCE JAN 1 1621 1646 -25 1748    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION NE (50)  
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION NE (60)  
AVERAGE WIND SPEED 5.3  
 
SKY COVER  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 84 3:00 AM  
LOWEST 39 2:00 PM  
AVERAGE 62  
   
......................................................
 
 
THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 79 98 1895  
MINIMUM TEMPERATURE (F) 62 39 1904  
 
SUNRISE AND SUNSET  
SEPTEMBER 22 2023.....SUNRISE 6:56 AM EDT SUNSET 7:05 PM EDT  
SEPTEMBER 23 2023.....SUNRISE 6:57 AM EDT SUNSET 7:04 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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