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CLISTL

CLIMATE REPORT 
NATIONAL WEATHER SERVICE ST LOUIS MO
430 PM CDT WED MAY 12 2021

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

...THE ST. LOUIS CLIMATE SUMMARY FOR MAY 12 2021...
VALID TODAY AS OF 0400 PM LOCAL TIME.

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1874 TO 2021


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST      
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL           
...................................................................
TEMPERATURE (F)                                                          
 TODAY                                                               
  MAXIMUM         65    246 PM  92    1956  76    -11       57       
  MINIMUM         45    555 AM  39    1960  57    -12       48       
  AVERAGE         55                        66    -11       53     

PRECIPITATION (IN)                                                    
  TODAY            0.00          2.18 2002   0.17  -0.17      T       
  MONTH TO DATE    0.39                      1.97  -1.58     1.25     
  SINCE MAR 1      9.66                     10.20  -0.54    10.12     
  SINCE JAN 1     15.12                     15.02   0.10    19.28     

SNOWFALL (IN)                                                              
  TODAY            0.0           0.0  2015   0.0    0.0      0.0      
  MONTH TO DATE    0.0                       0.0    0.0       T       
  SINCE MAR 1      0.8                       2.5   -1.7       T       
  SINCE JUL 1     12.9                      16.6   -3.7     14.3      
  SNOW DEPTH       0                                                 

DEGREE DAYS                                                           
 HEATING                                                              
  TODAY           10                         3      7       12        
  MONTH TO DATE   83                        42     41       95        
  SINCE MAR 1    740                       880   -140      862        
  SINCE JUL 1   4319                      4399    -80     4306        

 COOLING                                                              
  TODAY            0                         4     -4        0        
  MONTH TO DATE   19                        37    -18       13        
  SINCE MAR 1     54                        81    -27       44        
  SINCE JAN 1     54                        82    -28       44        
...................................................................


WIND (MPH)                                                            
  HIGHEST WIND SPEED    20   HIGHEST WIND DIRECTION     E (70)        
  HIGHEST GUST SPEED    29   HIGHEST GUST DIRECTION     E (70)        
  AVERAGE WIND SPEED     8.0                                        


SKY COVER                                                             
  AVERAGE SKY COVER 0.6                                                 


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    57          1200 AM                                      
 LOWEST     27           200 PM                                      
 AVERAGE    42                                                        

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


THE ST. LOUIS CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR                     
 MAXIMUM TEMPERATURE (F)   76        91      1915                      
                                             2018                     
 MINIMUM TEMPERATURE (F)   57        40      1938                      
                                             1971                     


SUNRISE AND SUNSET                                                    
MAY 12 2021...........SUNRISE   552 AM CDT   SUNSET   804 PM CDT     
MAY 13 2021...........SUNRISE   551 AM CDT   SUNSET   805 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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