096  
CDUS43 KLSX 210744  
CLISTL  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE ST LOUIS MO  
244 AM CDT MON APR 21 2025  
   
...............................
 
 
   
..THE ST. LOUIS CLIMATE SUMMARY FOR APRIL 20 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 78 423 PM 89 1987 70 8 61  
MINIMUM 55 134 AM 28 1904 49 6 42  
AVERAGE 67 59 8 52  
 
PRECIPITATION (IN)  
YESTERDAY 1.82 1.84 1966 0.17 1.65 0.00  
MONTH TO DATE 8.70 3.02 5.68 5.32  
SINCE MAR 1 11.61 6.52 5.09 7.48  
SINCE JAN 1 15.60 11.34 4.26 11.91  
 
SNOWFALL (IN)  
YESTERDAY 0.0 5.5 1904 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 7 -7 13  
MONTH TO DATE 181 205 -24 129  
SINCE MAR 1 536 781 -245 491  
SINCE JUL 1 3761 4300 -539 3297  
 
COOLING  
YESTERDAY 2 1 1 0  
MONTH TO DATE 19 20 -1 49  
SINCE MAR 1 41 27 14 69  
SINCE JAN 1 41 28 13 69    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 30 HIGHEST WIND DIRECTION SE (150)  
HIGHEST GUST SPEED 40 HIGHEST GUST DIRECTION SE (140)  
AVERAGE WIND SPEED 13.2  
 
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 89 1200 AM  
LOWEST 48 400 PM  
AVERAGE 69  
   
......................................................
 
 
THE ST. LOUIS CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 70 89 1902  
1965  
MINIMUM TEMPERATURE (F) 49 30 2021  
 
SUNRISE AND SUNSET  
APRIL 21 2025.........SUNRISE 616 AM CDT SUNSET 745 PM CDT  
APRIL 22 2025.........SUNRISE 615 AM CDT SUNSET 746 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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