431  
CDUS43 KLSX 180746  
CLISTL  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE ST LOUIS MO  
246 AM CDT TUE MAR 18 2025  
   
...............................
 
 
   
..THE ST. LOUIS CLIMATE SUMMARY FOR MARCH 17 2025
 
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1874 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 69 416 PM 83 2011 57 12 54  
MINIMUM 30 345 AM 10 1900 37 -7 32  
AVERAGE 50 47 3 43  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.34 2012 0.12 -0.12 0.00  
MONTH TO DATE 0.73 1.74 -1.01 1.07  
SINCE MAR 1 0.73 1.74 -1.01 1.07  
SINCE JAN 1 4.72 6.56 -1.84 5.50  
 
SNOWFALL (IN)  
YESTERDAY 0.0 2.5 1949 0.0 0.0 0.0  
MONTH TO DATE 0.3 1.6 -1.3 T  
SINCE MAR 1 0.3 1.6 -1.3 T  
SINCE JUL 1 18.6 15.7 2.9 9.3  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 15 18 -3 22  
MONTH TO DATE 226 356 -130 178  
SINCE MAR 1 226 356 -130 178  
SINCE JUL 1 3451 3875 -424 2984  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 9 0 9 9  
SINCE MAR 1 9 0 9 9  
SINCE JAN 1 9 1 8 9    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 24 HIGHEST WIND DIRECTION S (170)  
HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION S (160)  
AVERAGE WIND SPEED 11.5  
 
SKY COVER  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 66 300 AM  
LOWEST 18 300 PM  
AVERAGE 42  
   
......................................................
 
 
THE ST. LOUIS CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 57 82 2012  
MINIMUM TEMPERATURE (F) 37 6 1923  
 
SUNRISE AND SUNSET  
MARCH 18 2025.........SUNRISE 708 AM CDT SUNSET 712 PM CDT  
MARCH 19 2025.........SUNRISE 706 AM CDT SUNSET 713 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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