770  
CDUS43 KLSX 200730  
CLISTL  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE ST LOUIS MO  
230 AM CDT THU AUG 20 2026  
   
...............................
 
 
   
..THE ST. LOUIS CLIMATE SUMMARY FOR AUGUST 19 2026
 
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1874 TO 2026  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 81 526 PM 105 1936 88 -7 93  
1962  
MINIMUM 71 710 AM 55 1953 69 2 77  
AVERAGE 76 79 -3 85  
 
PRECIPITATION (IN)  
YESTERDAY 0.15 2.03 1914 0.11 0.04 0.04  
MONTH TO DATE 3.62 2.17 1.45 1.48  
SINCE JUN 1 17.57 10.59 6.98 10.44  
SINCE JAN 1 36.24 28.46 7.78 32.09  
 
SNOWFALL (IN)  
YESTERDAY 0.0 0.0 2015 0.0 0.0 0.0  
MONTH TO DATE 0.0 0.0 0.0 0.0  
SINCE JUN 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 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE JUN 1 0 4 -4 0  
SINCE JUL 1 0 0 0 0  
 
COOLING  
YESTERDAY 11 14 -3 20  
MONTH TO DATE 302 278 24 308  
SINCE JUN 1 1135 1105 30 1261  
SINCE JAN 1 1407 1300 107 1432    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION S (200)  
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION S (200)  
AVERAGE WIND SPEED 6.2  
 
SKY COVER  
AVERAGE SKY COVER 0.9  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 94 500 AM  
LOWEST 72 500 PM  
AVERAGE 83  
   
......................................................
 
 
THE ST. LOUIS CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 88 104 1962  
MINIMUM TEMPERATURE (F) 69 52 1950  
 
SUNRISE AND SUNSET  
AUGUST 20 2026........SUNRISE 620 AM CDT SUNSET 749 PM CDT  
AUGUST 21 2026........SUNRISE 621 AM CDT SUNSET 748 PM CDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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