865  
CDUS43 KLSX 210738  
CLISTL  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE ST LOUIS MO  
137 AM CST TUE NOV 21 2017  
 
   
...............................
 
 
   
..THE ST. LOUIS CLIMATE SUMMARY FOR NOVEMBER 20 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 61 259 PM 76 1942 53 8 45  
MINIMUM 34 132 AM 14 1914 36 -2 28  
AVERAGE 48 45 3 37  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.64 1956 0.14 -0.14 0.00  
MONTH TO DATE 1.46 2.59 -1.13 3.10  
SINCE SEP 1 5.44 9.05 -3.61 11.20  
SINCE JAN 1 35.74 36.80 -1.06 39.68  
 
SNOWFALL (IN)  
YESTERDAY 0.0 3.3 1926 0.0 0.0 0.0  
MONTH TO DATE T 0.3 -0.3 0.0  
SINCE SEP 1 T 0.3 -0.3 0.0  
SINCE JUL 1 T 0.3 -0.3 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 17 20 -3 28  
MONTH TO DATE 343 319 24 200  
SINCE SEP 1 545 594 -49 291  
SINCE JUL 1 545 595 -50 291  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 23  
SINCE SEP 1 357 243 114 457  
SINCE JAN 1 1959 1642 317 2162    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 24 HIGHEST WIND DIRECTION S (200)  
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION SW (210)  
AVERAGE WIND SPEED 12.1  
 
 
SKY COVER  
AVERAGE SKY COVER 0.4  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 61 100 AM  
LOWEST 25 300 PM  
AVERAGE 43  
   
......................................................
 
 
 
THE ST. LOUIS CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 53 75 1990  
1913  
MINIMUM TEMPERATURE (F) 36 9 1880  
 
 
SUNRISE AND SUNSET  
NOVEMBER 21 2017......SUNRISE 651 AM CST SUNSET 444 PM CST  
NOVEMBER 22 2017......SUNRISE 652 AM CST SUNSET 443 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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