AFOS product CLISTL
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CDUS43 KLSX 210826
CLISTL

CLIMATE REPORT 
NATIONAL WEATHER SERVICE ST LOUIS MO
226 AM CST THU DEC 21 2023

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

...THE ST. LOUIS CLIMATE SUMMARY FOR DECEMBER 20 2023...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1874 TO 2023


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST      
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL           
...................................................................
TEMPERATURE (F)                                                          
 YESTERDAY                                                           
  MAXIMUM         55    343 PM  71    2013  43     12       45       
  MINIMUM         35   1208 AM -10    1901  28      7       25       
  AVERAGE         45                        35     10       35     

PRECIPITATION (IN)                                                    
  YESTERDAY        0.00          1.36 1962   0.08  -0.08     0.00     
  MONTH TO DATE    1.14                      1.56  -0.42     1.46     
  SINCE DEC 1      1.14                      1.56  -0.42     1.46     
  SINCE JAN 1     31.99                     40.76  -8.77    48.44     

SNOWFALL (IN)                                                              
  YESTERDAY        0.0           3.3  1960   0.1   -0.1      0.0      
  MONTH TO DATE    0.0                       1.7   -1.7       T       
  SINCE DEC 1      0.0                       1.7   -1.7       T       
  SINCE JUL 1      0.0                       2.6   -2.6      0.8      
  SNOW DEPTH       0                                                 

DEGREE DAYS                                                           
 HEATING                                                              
  YESTERDAY       20                        30    -10       30        
  MONTH TO DATE  409                       543   -134      506        
  SINCE DEC 1    409                       543   -134      506        
  SINCE JUL 1   1061                      1365   -304     1299        

 COOLING                                                              
  YESTERDAY        0                         0      0        0        
  MONTH TO DATE    0                         0      0        0        
  SINCE DEC 1      0                         0      0        0        
  SINCE JAN 1   1942                      1713    229     1977        
...................................................................


WIND (MPH)                                                            
  HIGHEST WIND SPEED    14   HIGHEST WIND DIRECTION     S (170)       
  HIGHEST GUST SPEED    19   HIGHEST GUST DIRECTION     S (170)       
  AVERAGE WIND SPEED     7.3                                        


SKY COVER                                                             
  AVERAGE SKY COVER 0.8                                                 


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    56          1200 AM                                      
 LOWEST     32          1200 PM                                      
 AVERAGE    44                                                        

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


THE ST. LOUIS CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                     
 MAXIMUM TEMPERATURE (F)   43        67      1967                      
                                             2015                     
 MINIMUM TEMPERATURE (F)   27       -12      1989                      


SUNRISE AND SUNSET                                                    
DECEMBER 21 2023......SUNRISE   716 AM CST   SUNSET   443 PM CST     
DECEMBER 22 2023......SUNRISE   716 AM CST   SUNSET   444 PM CST     


-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.




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