739  
CDUS43 KLSX 182126  
CLISTL  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE ST LOUIS MO  
426 PM CDT THU MAY 18 2023  
   
...............................
 
 
   
..THE ST. LOUIS CLIMATE SUMMARY FOR MAY 18 2023
 
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 83 1239 PM 94 1996 78 5 83  
MINIMUM 62 546 AM 39 2002 59 3 64  
AVERAGE 73 68 5 74  
 
PRECIPITATION (IN)  
TODAY 0.00 2.38 1890 0.15 -0.15 0.46  
MONTH TO DATE 1.61 2.89 -1.28 3.28  
SINCE MAR 1 9.21 11.12 -1.91 11.47  
SINCE JAN 1 13.57 15.94 -2.37 16.38  
 
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 0.9  
SINCE JUL 1 5.4 16.6 -11.2 12.1  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 0 2 -2 0  
MONTH TO DATE 28 55 -27 45  
SINCE MAR 1 839 893 -54 809  
SINCE JUL 1 3920 4412 -492 3986  
 
COOLING  
TODAY 8 5 3 9  
MONTH TO DATE 104 65 39 123  
SINCE MAR 1 140 109 31 159  
SINCE JAN 1 140 110 30 159    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION SE (140)  
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION E (110)  
AVERAGE WIND SPEED 6.4  
 
SKY COVER  
AVERAGE SKY COVER 0.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 76 200 AM  
LOWEST 34 300 PM  
AVERAGE 55  
   
......................................................
 
 
THE ST. LOUIS CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 78 94 1996  
MINIMUM TEMPERATURE (F) 59 40 1894  
 
SUNRISE AND SUNSET  
MAY 18 2023...........SUNRISE 547 AM CDT SUNSET 809 PM CDT  
MAY 19 2023...........SUNRISE 546 AM CDT SUNSET 810 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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