AFOS product CLISTL
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CDUS43 KLSX 150728
CLISTL

CLIMATE REPORT 
NATIONAL WEATHER SERVICE ST LOUIS MO
228 AM CDT THU MAY 15 2025

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

...THE ST. LOUIS CLIMATE SUMMARY FOR MAY 14 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         85    342 PM  93    2013  76      9       72       
  MINIMUM         63    505 AM  37    1920  57      6       64       
  AVERAGE         74                        67      7       68     

PRECIPITATION (IN)                                                    
  YESTERDAY        0.00          3.33 1886   0.16  -0.16     1.20     
  MONTH TO DATE    1.28                      2.29  -1.01     3.25     
  SINCE MAR 1     15.04                     10.52   4.52    13.57     
  SINCE JAN 1     19.03                     15.34   3.69    18.00     

SNOWFALL (IN)                                                              
  YESTERDAY        0.0           0.0    MM   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                        47     -2        2        
  SINCE MAR 1    597                       885   -288      545        
  SINCE JUL 1   3822                      4404   -582     3351        

 COOLING                                                              
  YESTERDAY        9                         4      5        3        
  MONTH TO DATE   31                        45    -14       70        
  SINCE MAR 1     97                        89      8      158        
  SINCE JAN 1     97                        90      7      158        
...................................................................


WIND (MPH)                                                            
  HIGHEST WIND SPEED    20   HIGHEST WIND DIRECTION    SE (140)       
  HIGHEST GUST SPEED    27   HIGHEST GUST DIRECTION    SE (130)       
  AVERAGE WIND SPEED    10.7                                        


SKY COVER                                                             
  AVERAGE SKY COVER 0.4                                                 


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    87           600 AM                                      
 LOWEST     55          1200 PM                                      
 AVERAGE    71                                                        

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


THE ST. LOUIS CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                     
 MAXIMUM TEMPERATURE (F)   77        94      1944                      
 MINIMUM TEMPERATURE (F)   58        39      1959                      


SUNRISE AND SUNSET                                                    
MAY 15 2025...........SUNRISE   549 AM CDT   SUNSET   807 PM CDT     
MAY 16 2025...........SUNRISE   548 AM CDT   SUNSET   808 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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