593  
CDUS43 KLSX 172229  
CLISTL  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE ST LOUIS MO  
529 PM CDT THU JUL 17 2025  
   
...............................  
 
   
..THE ST. LOUIS CLIMATE SUMMARY FOR JULY 17 2025  
 
VALID AS OF 0500 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 87 300 PM 103 2012 90 -3 87  
MINIMUM 74 311 AM 57 1976 71 3 70  
AVERAGE 81 80 1 79  
 
PRECIPITATION (IN)  
TODAY 0.00 1.94 1938 0.12 -0.12 0.00  
MONTH TO DATE 1.76 2.19 -0.43 7.45  
SINCE JUN 1 6.14 6.68 -0.54 8.57  
SINCE JAN 1 27.79 24.55 3.24 29.36  
 
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 JUN 1 0.0 0.0 0.0 0.0  
SINCE JUL 1 0.0 0.0 0.0 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE JUN 1 0 4 -4 0  
SINCE JUL 1 0 0 0 0  
 
COOLING  
TODAY 16 16 0 14  
MONTH TO DATE 274 260 14 259  
SINCE JUN 1 682 611 71 726  
SINCE JAN 1 853 806 47 1039    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION N (20)  
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION NE (30)  
AVERAGE WIND SPEED 5.6  
 
SKY COVER  
AVERAGE SKY COVER 0.8  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
THUNDERSTORM  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 88 500 AM  
LOWEST 67 200 PM  
AVERAGE 78  
   
......................................................  
 
THE ST. LOUIS CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 90 112 1954  
MINIMUM TEMPERATURE (F) 71 57 1976  
 
SUNRISE AND SUNSET  
JULY 17 2025..........SUNRISE 551 AM CDT SUNSET 824 PM CDT  
JULY 18 2025..........SUNRISE 551 AM CDT SUNSET 824 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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