AFOS product CLISTL
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CDUS43 KLSX 040728
CLISTL

CLIMATE REPORT 
NATIONAL WEATHER SERVICE ST LOUIS MO
228 AM CDT THU SEP 04 2025

...................................

...THE ST. LOUIS CLIMATE SUMMARY FOR SEPTEMBER 3 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         87    211 PM 101    2011  85      2       78       
  MINIMUM         62    236 AM  45    1974  65     -3       60       
  AVERAGE         75                        75      0       69     

PRECIPITATION (IN)                                                    
  YESTERDAY        T             0.74 1991   0.10  -0.10     0.00     
  MONTH TO DATE    0.05                      0.31  -0.26     0.00     
  SINCE SEP 1      0.05                      0.31  -0.26     0.00     
  SINCE JAN 1     32.14                     29.98   2.16    31.68     

SNOWFALL (IN)                                                              
  YESTERDAY        0.0           0.0  2015   0.0    0.0      0.0      
  MONTH TO DATE    0.0                       0.0    0.0      0.0      
  SINCE SEP 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                                                              
  YESTERDAY        0                         0      0        0        
  MONTH TO DATE    0                         0      0        0        
  SINCE SEP 1      0                         0      0        0        
  SINCE JUL 1      0                         1     -1        0        

 COOLING                                                              
  YESTERDAY       10                        10      0        4        
  MONTH TO DATE   26                        32     -6       24        
  SINCE SEP 1     26                        32     -6       24        
  SINCE JAN 1   1547                      1482     65     1732        
...................................................................


WIND (MPH)                                                            
  HIGHEST WIND SPEED    20   HIGHEST WIND DIRECTION     N (350)       
  HIGHEST GUST SPEED    27   HIGHEST GUST DIRECTION     N (360)       
  AVERAGE WIND SPEED     8.3                                        


SKY COVER                                                             
  AVERAGE SKY COVER 0.6                                                 


WEATHER CONDITIONS                                                    
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                         
  LIGHT RAIN                                                          


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    87           600 AM                                      
 LOWEST     37           400 PM                                      
 AVERAGE    62                                                        

..........................................................


THE ST. LOUIS CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                     
 MAXIMUM TEMPERATURE (F)   85       104      1954                      
 MINIMUM TEMPERATURE (F)   65        42      1974                      


SUNRISE AND SUNSET                                                    
SEPTEMBER  4 2025.....SUNRISE   634 AM CDT   SUNSET   727 PM CDT     
SEPTEMBER  5 2025.....SUNRISE   634 AM CDT   SUNSET   725 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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