AFOS product CLISTL
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CDUS43 KLSX 220740
CLISTL

CLIMATE REPORT 
NATIONAL WEATHER SERVICE ST LOUIS MO
240 AM CDT THU MAY 22 2025

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

...THE ST. LOUIS CLIMATE SUMMARY FOR MAY 21 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         74    307 PM  93    1941  79     -5       91       
  MINIMUM         58    557 AM  38    1883  60     -2       73       
  AVERAGE         66                        69     -3       82     

PRECIPITATION (IN)                                                    
  YESTERDAY        0.00          2.00 1957   0.15  -0.15     0.32     
  MONTH TO DATE    3.42                      3.34   0.08     3.70     
  SINCE MAR 1     17.18                     11.57   5.61    14.02     
  SINCE JAN 1     21.17                     16.39   4.78    18.45     

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 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                         2     -2        0        
  MONTH TO DATE   45                        61    -16        2        
  SINCE MAR 1    597                       899   -302      545        
  SINCE JUL 1   3822                      4418   -596     3351        

 COOLING                                                              
  YESTERDAY        1                         6     -5       17        
  MONTH TO DATE   84                        82      2      149        
  SINCE MAR 1    150                       126     24      237        
  SINCE JAN 1    150                       127     23      237        
...................................................................


WIND (MPH)                                                            
  HIGHEST WIND SPEED    26   HIGHEST WIND DIRECTION     W (280)       
  HIGHEST GUST SPEED    37   HIGHEST GUST DIRECTION     W (260)       
  AVERAGE WIND SPEED    14.6                                        


SKY COVER                                                             
  AVERAGE SKY COVER 0.3                                                 


WEATHER CONDITIONS                                                    
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                         
  NO SIGNIFICANT WEATHER WAS OBSERVED.                                  


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    70           500 AM                                      
 LOWEST     38           400 PM                                      
 AVERAGE    54                                                        

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


THE ST. LOUIS CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                     
 MAXIMUM TEMPERATURE (F)   79        94      1925                      
 MINIMUM TEMPERATURE (F)   60        37      1883                      


SUNRISE AND SUNSET                                                    
MAY 22 2025...........SUNRISE   544 AM CDT   SUNSET   813 PM CDT     
MAY 23 2025...........SUNRISE   543 AM CDT   SUNSET   814 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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