431  
CDUS43 KLSX 010728  
CLISTL  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE ST LOUIS MO  
228 AM CDT THU MAY 01 2025  
   
...............................
 
 
   
..THE ST. LOUIS CLIMATE SUMMARY FOR APRIL 30 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 75 215 PM 91 2007 73 2 83  
MINIMUM 57 841 AM 35 1877 52 5 56  
1907  
AVERAGE 66 62 4 70  
 
PRECIPITATION (IN)  
YESTERDAY 1.00 2.86 1893 0.17 0.83 0.00  
MONTH TO DATE 10.85 4.73 6.12 8.16  
SINCE MAR 1 13.76 8.23 5.53 10.32  
SINCE JAN 1 17.75 13.05 4.70 14.75  
 
SNOWFALL (IN)  
YESTERDAY 0.0 0.0 2015 0.0 0.0 0.0  
MONTH TO DATE 0.0 0.2 -0.2 0.0  
SINCE MAR 1 0.3 2.5 -2.2 T  
SINCE JUL 1 18.6 16.6 2.0 9.3  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 5 -5 0  
MONTH TO DATE 197 263 -66 181  
SINCE MAR 1 552 839 -287 543  
SINCE JUL 1 3777 4358 -581 3349  
 
COOLING  
YESTERDAY 1 2 -1 5  
MONTH TO DATE 44 37 7 68  
SINCE MAR 1 66 44 22 88  
SINCE JAN 1 66 45 21 88    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION S (170)  
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION S (170)  
AVERAGE WIND SPEED 8.8  
 
SKY COVER  
AVERAGE SKY COVER 0.9  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 90 900 PM  
LOWEST 68 100 PM  
AVERAGE 79  
   
......................................................
 
 
THE ST. LOUIS CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 73 90 1936  
MINIMUM TEMPERATURE (F) 53 34 1963  
 
SUNRISE AND SUNSET  
MAY 1 2025...........SUNRISE 604 AM CDT SUNSET 754 PM CDT  
MAY 2 2025...........SUNRISE 602 AM CDT SUNSET 755 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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