155  
CDUS43 KLSX 250729  
CLISTL  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE ST LOUIS MO  
227 AM CDT MON SEP 25 2017  
 
   
...............................
 
 
   
..THE ST. LOUIS CLIMATE SUMMARY FOR SEPTEMBER 24 2017
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1874 TO 2017  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 92 245 PM 94 1891 77 15 92  
1881  
MINIMUM 69 606 AM 37 1942 57 12 73  
AVERAGE 81 67 14 83  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 2.57 1941 0.12 -0.12 0.00  
MONTH TO DATE 0.27 2.49 -2.22 4.68  
SINCE SEP 1 0.27 2.49 -2.22 4.68  
SINCE JAN 1 30.57 30.24 0.33 33.16  
 
SNOWFALL (IN)  
YESTERDAY 0.0 0.0 2015 0.0 0.0 0.0  
MONTH TO DATE 0.0 0.0 0.0 0.0  
SINCE SEP 1 0.0 0.0 0.0 0.0  
SINCE JUL 1 0.0 0.0 0.0 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 2 -2 0  
MONTH TO DATE 6 19 -13 0  
SINCE SEP 1 6 19 -13 0  
SINCE JUL 1 6 20 -14 0  
 
COOLING  
YESTERDAY 16 4 12 18  
MONTH TO DATE 220 182 38 305  
SINCE SEP 1 220 182 38 305  
SINCE JAN 1 1822 1581 241 2010    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION E (90)  
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION S (170)  
AVERAGE WIND SPEED 6.2  
 
 
SKY COVER  
AVERAGE SKY COVER 0.1  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 84 500 AM  
LOWEST 41 300 PM  
AVERAGE 63  
   
......................................................
 
 
 
THE ST. LOUIS CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 76 92 1900  
1881  
MINIMUM TEMPERATURE (F) 56 39 1942  
 
 
SUNRISE AND SUNSET  
SEPTEMBER 25 2017.....SUNRISE 652 AM CDT SUNSET 653 PM CDT  
SEPTEMBER 26 2017.....SUNRISE 653 AM CDT SUNSET 652 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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