770  
CDUS43 KLSX 212228  
CLISTL  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE ST LOUIS MO  
528 PM CDT TUE MAY 21 2024  
   
...............................  
 
   
..THE ST. LOUIS CLIMATE SUMMARY FOR MAY 21 2024  
 
VALID AS OF 0500 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1874 TO 2024  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 91 301 PM 93 1941 79 12 78  
MINIMUM 73 521 AM 38 1883 60 13 52  
AVERAGE 82 69 13 65  
 
PRECIPITATION (IN)  
TODAY 0.00 2.00 1957 0.15 -0.15 0.00  
MONTH TO DATE 3.38 3.34 0.04 1.61  
SINCE MAR 1 13.70 11.57 2.13 9.21  
SINCE JAN 1 18.13 16.39 1.74 13.57  
 
SNOWFALL (IN)  
TODAY 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 T 2.5 -2.5 T  
SINCE JUL 1 9.3 16.6 -7.3 5.4  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 0 2 -2 0  
MONTH TO DATE 2 61 -59 30  
SINCE MAR 1 545 899 -354 841  
SINCE JUL 1 3351 4418 -1067 3922  
 
COOLING  
TODAY 17 6 11 0  
MONTH TO DATE 149 82 67 110  
SINCE MAR 1 237 126 111 146  
SINCE JAN 1 237 127 110 146    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 26 HIGHEST WIND DIRECTION S (170)  
HIGHEST GUST SPEED 45 HIGHEST GUST DIRECTION S (170)  
AVERAGE WIND SPEED 14.3  
 
SKY COVER  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 73 400 AM  
LOWEST 41 200 PM  
AVERAGE 57  
   
......................................................  
 
THE ST. LOUIS CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 79 94 1925  
MINIMUM TEMPERATURE (F) 60 37 1883  
 
SUNRISE AND SUNSET  
MAY 21 2024...........SUNRISE 544 AM CDT SUNSET 813 PM CDT  
MAY 22 2024...........SUNRISE 544 AM CDT SUNSET 813 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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