206  
CDUS43 KLSX 122227  
CLISTL  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE ST LOUIS MO  
427 PM CST TUE DEC 12 2023  
   
...............................  
 
   
..THE ST. LOUIS CLIMATE SUMMARY FOR DECEMBER 12 2023  
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 51 359 PM 72 2015 45 6 43  
MINIMUM 31 438 AM -5 1962 29 2 35  
AVERAGE 41 37 4 39  
 
PRECIPITATION (IN)  
TODAY 0.00 1.31 1972 0.08 -0.08 0.00  
MONTH TO DATE 0.82 0.95 -0.13 0.25  
SINCE DEC 1 0.82 0.95 -0.13 0.25  
SINCE JAN 1 31.67 40.15 -8.48 47.23  
 
SNOWFALL (IN)  
TODAY 0.0 4.4 2010 0.0 0.0 0.0  
MONTH TO DATE 0.0 0.9 -0.9 0.0  
SINCE DEC 1 0.0 0.9 -0.9 0.0  
SINCE JUL 1 0.0 1.8 -1.8 0.8  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 24 28 -4 26  
MONTH TO DATE 227 313 -86 273  
SINCE DEC 1 227 313 -86 273  
SINCE JUL 1 879 1135 -256 1066  
 
COOLING  
TODAY 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 9 HIGHEST WIND DIRECTION NW (330)  
HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION NW (320)  
AVERAGE WIND SPEED 3.8  
 
SKY COVER  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 64 800 AM  
LOWEST 35 200 PM  
AVERAGE 50  
   
......................................................  
 
THE ST. LOUIS CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 45 73 1948  
MINIMUM TEMPERATURE (F) 29 1 1903  
 
SUNRISE AND SUNSET  
DECEMBER 12 2023......SUNRISE 710 AM CST SUNSET 440 PM CST  
DECEMBER 13 2023......SUNRISE 711 AM CST SUNSET 440 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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