869  
CDUS43 KLSX 102141  
CLISTL  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE ST LOUIS MO  
441 PM CDT SAT MAY 10 2025  
   
...............................
 
 
   
..THE ST. LOUIS CLIMATE SUMMARY FOR MAY 10 2025
 
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 78 220 PM 91 1928 75 3 74  
1963  
MINIMUM 50 554 AM 31 1966 56 -6 56  
AVERAGE 64 66 -2 65  
 
PRECIPITATION (IN)  
TODAY 0.00 2.22 1921 0.15 -0.15 0.00  
MONTH TO DATE 1.19 1.63 -0.44 2.03  
SINCE MAR 1 14.95 9.86 5.09 12.35  
SINCE JAN 1 18.94 14.68 4.26 16.78  
 
SNOWFALL (IN)  
TODAY 0.0 0.0 2015 0.0 0.0 0.0  
MONTH TO DATE 0.0 0.0 0.0 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  
TODAY 1 3 -2 0  
MONTH TO DATE 45 36 9 2  
SINCE MAR 1 597 874 -277 545  
SINCE JUL 1 3822 4393 -571 3351  
 
COOLING  
TODAY 0 4 -4 0  
MONTH TO DATE 7 29 -22 51  
SINCE MAR 1 73 73 0 139  
SINCE JAN 1 73 74 -1 139    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION E (80)  
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION E (80)  
AVERAGE WIND SPEED 2.6  
 
SKY COVER  
AVERAGE SKY COVER 0.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 79 500 AM  
LOWEST 24 200 PM  
AVERAGE 52  
   
......................................................
 
 
THE ST. LOUIS CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 76 94 2022  
MINIMUM TEMPERATURE (F) 56 35 1907  
 
SUNRISE AND SUNSET  
MAY 10 2025...........SUNRISE 554 AM CDT SUNSET 803 PM CDT  
MAY 11 2025...........SUNRISE 553 AM CDT SUNSET 804 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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