676  
CDUS41 KLWX 180523  
CLIDCA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
123 AM EDT SUN SEP 18 2022  
   
...............................
 
 
...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR SEPTEMBER 17 2022...  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1871 TO 2022  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 82 2:12 PM 96 1991 80 2 82  
MINIMUM 63 6:05 AM 44 1923 64 -1 71  
AVERAGE 73 72 1 77  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 3.26 1876 0.14 -0.14 0.01  
MONTH TO DATE 1.90 2.24 -0.34 2.40  
SINCE SEP 1 1.90 2.24 -0.34 2.40  
SINCE JAN 1 33.85 30.15 3.70 37.58  
 
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 T 0.0 0.0 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE SEP 1 0 0 0 0  
SINCE JUL 1 0 0 0 0  
 
COOLING  
YESTERDAY 8 8 0 12  
MONTH TO DATE 195 168 27 183  
SINCE SEP 1 195 168 27 183  
SINCE JAN 1 1703 1620 83 1702    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION S (180)  
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION S (190)  
AVERAGE WIND SPEED 5.2  
 
SKY COVER  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 90 7:00 AM  
LOWEST 44 2:00 PM  
AVERAGE 67  
   
......................................................
 
 
THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 80 91 1898  
1921  
1927  
MINIMUM TEMPERATURE (F) 63 45 1937  
 
SUNRISE AND SUNSET  
SEPTEMBER 18 2022.....SUNRISE 6:52 AM EDT SUNSET 7:11 PM EDT  
SEPTEMBER 19 2022.....SUNRISE 6:53 AM EDT SUNSET 7:10 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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