866  
CDUS43 KLSX 131333  
CLISTL  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE ST LOUIS MO  
833 AM CDT THU AUG 13 2020  
   
...............................
 
 
   
..THE ST. LOUIS CLIMATE SUMMARY FOR AUGUST 12 2020
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1874 TO 2020  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 85 451 PM 106 1881 89 -4 95  
MINIMUM 74 1117 AM 51 1967 70 4 76  
AVERAGE 80 79 1 86  
 
PRECIPITATION (IN)  
YESTERDAY 0.03 2.68 2019 0.10 -0.07 2.68  
MONTH TO DATE 4.70 1.24 3.46 2.98  
SINCE JUN 1 16.48 9.63 6.85 13.34  
SINCE JAN 1 39.98 26.00 13.98 39.71  
 
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 5 -5 1  
SINCE JUL 1 0 0 0 0  
 
COOLING  
YESTERDAY 15 14 1 21  
MONTH TO DATE 129 176 -47 176  
SINCE JUN 1 1085 977 108 1004  
SINCE JAN 1 1232 1151 81 1216    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION SE (120)  
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION SE (120)  
AVERAGE WIND SPEED 6.5  
 
SKY COVER  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 90 1000 AM  
LOWEST 59 300 PM  
AVERAGE 75  
   
......................................................
 
 
THE ST. LOUIS CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 88 103 1936  
MINIMUM TEMPERATURE (F) 70 50 1964  
 
SUNRISE AND SUNSET  
AUGUST 13 2020........SUNRISE 614 AM CDT SUNSET 758 PM CDT  
AUGUST 14 2020........SUNRISE 615 AM CDT SUNSET 757 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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