834  
CDUS43 KLSX 200826  
CLISTL  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE ST LOUIS MO  
226 AM CST WED DEC 20 2023  
   
...............................
 
 
   
..THE ST. LOUIS CLIMATE SUMMARY FOR DECEMBER 19 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 43 317 PM 68 1877 44 -1 41  
1889  
1976  
MINIMUM 21 632 AM -7 1884 28 -7 23  
1983  
AVERAGE 32 36 -4 32  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.49 1895 0.08 -0.08 0.00  
MONTH TO DATE 1.14 1.48 -0.34 1.46  
SINCE DEC 1 1.14 1.48 -0.34 1.46  
SINCE JAN 1 31.99 40.68 -8.69 48.44  
 
SNOWFALL (IN)  
YESTERDAY 0.0 12.0 1973 0.1 -0.1 0.0  
MONTH TO DATE 0.0 1.6 -1.6 T  
SINCE DEC 1 0.0 1.6 -1.6 T  
SINCE JUL 1 0.0 2.5 -2.5 0.8  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 33 29 4 33  
MONTH TO DATE 389 513 -124 476  
SINCE DEC 1 389 513 -124 476  
SINCE JUL 1 1041 1335 -294 1269  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 1942 1713 229 1977    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION S (160)  
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION SE (150)  
AVERAGE WIND SPEED 7.8  
 
SKY COVER  
AVERAGE SKY COVER 0.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 68 400 AM  
LOWEST 34 200 PM  
AVERAGE 51  
   
......................................................
 
 
THE ST. LOUIS CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 43 71 2013  
MINIMUM TEMPERATURE (F) 28 -10 1901  
 
SUNRISE AND SUNSET  
DECEMBER 20 2023......SUNRISE 715 AM CST SUNSET 443 PM CST  
DECEMBER 21 2023......SUNRISE 716 AM CST SUNSET 443 PM CST  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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