965  
CDUS43 KLSX 170829  
CLISTL  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE ST LOUIS MO  
229 AM CST SUN DEC 17 2023  
   
...............................  
 
   
..THE ST. LOUIS CLIMATE SUMMARY FOR DECEMBER 16 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 54 116 AM 71 2021 44 10 37  
MINIMUM 42 1159 PM -8 1989 28 14 30  
AVERAGE 48 36 12 34  
 
PRECIPITATION (IN)  
YESTERDAY 0.32 1.16 2001 0.07 0.25 T  
MONTH TO DATE 1.14 1.25 -0.11 1.46  
SINCE DEC 1 1.14 1.25 -0.11 1.46  
SINCE JAN 1 31.99 40.45 -8.46 48.44  
 
SNOWFALL (IN)  
YESTERDAY 0.0 2.4 2019 0.1 -0.1 T  
MONTH TO DATE 0.0 1.3 -1.3 T  
SINCE DEC 1 0.0 1.3 -1.3 T  
SINCE JUL 1 0.0 2.2 -2.2 0.8  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 17 29 -12 31  
MONTH TO DATE 299 426 -127 369  
SINCE DEC 1 299 426 -127 369  
SINCE JUL 1 951 1248 -297 1162  
 
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 20 HIGHEST WIND DIRECTION W (270)  
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION SE (150)  
AVERAGE WIND SPEED 9.1  
 
SKY COVER  
AVERAGE SKY COVER 1.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 89 500 PM  
LOWEST 31 1200 AM  
AVERAGE 60  
   
......................................................  
 
THE ST. LOUIS CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 44 72 1908  
MINIMUM TEMPERATURE (F) 28 -3 1875  
 
SUNRISE AND SUNSET  
DECEMBER 17 2023......SUNRISE 714 AM CST SUNSET 442 PM CST  
DECEMBER 18 2023......SUNRISE 714 AM CST SUNSET 442 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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