344  
CDUS43 KLSX 280732  
CLISTL  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE ST LOUIS MO  
232 AM CDT THU SEP 28 2023  
   
...............................
 
 
   
..THE ST. LOUIS CLIMATE SUMMARY FOR SEPTEMBER 27 2023
 
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1874 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 84 210 PM 92 2019 77 7 75  
2021  
MINIMUM 66 620 AM 36 1940 57 9 49  
AVERAGE 75 67 8 62  
 
PRECIPITATION (IN)  
YESTERDAY 1.62R 1.28 1945 0.09 1.53 0.00  
MONTH TO DATE 2.58 2.69 -0.11 1.73  
SINCE SEP 1 2.58 2.69 -0.11 1.73  
SINCE JAN 1 27.58 32.36 -4.78 40.85  
 
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 SEP 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 2 -2 3  
MONTH TO DATE 0 21 -21 10  
SINCE SEP 1 0 21 -21 10  
SINCE JUL 1 0 22 -22 10  
 
COOLING  
YESTERDAY 10 4 6 0  
MONTH TO DATE 249 201 48 231  
SINCE SEP 1 249 201 48 231  
SINCE JAN 1 1819 1651 168 1925    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION S (170)  
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION S (170)  
AVERAGE WIND SPEED 6.3  
 
SKY COVER  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 300 AM  
LOWEST 52 500 PM  
AVERAGE 73  
   
......................................................
 
 
THE ST. LOUIS CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 77 97 1953  
MINIMUM TEMPERATURE (F) 56 32 1942  
 
SUNRISE AND SUNSET  
SEPTEMBER 28 2023.....SUNRISE 654 AM CDT SUNSET 649 PM CDT  
SEPTEMBER 29 2023.....SUNRISE 655 AM CDT SUNSET 648 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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