823  
CDUS43 KLOT 210633  
CLILOT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
133 AM CDT THU OCT 21 2021  
   
...............................
 
 
   
..THE ROMEOVILLE WFO CLIMATE SUMMARY FOR OCTOBER 20 2021
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1992 TO 2021  
 
WEATHER ITEM OBSERVED RECORD YEAR NORMAL DEPARTURE LAST  
VALUE VALUE VALUE FROM YEAR  
NORMAL    
........................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 72 85 2003 62 10 54  
MINIMUM 50 28 2002 42 8 38  
AVERAGE 61 52 9 46  
 
PRECIPITATION (IN)  
YESTERDAY T 0.52 1995 0.11 -0.11 0.18  
MONTH TO DATE 3.14 2.45 0.69 0.89  
SINCE SEP 1 4.17 5.76 -1.59 4.07  
SINCE JAN 1 25.63 35.10 -9.47 30.02  
 
SNOWFALL (IN)  
YESTERDAY 0.0 MM MM 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 4 13 -9  
MONTH TO DATE 63 193 -130  
SINCE SEP 1 82 273 -191  
SINCE JUL 1 82 279 -197  
 
COOLING  
YESTERDAY 0 0 0  
MONTH TO DATE 53 13 40  
SINCE SEP 1 214 119 95  
SINCE JAN 1 1176 944 232    
........................................................
 
 
THE ROMEOVILLE WFO CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 62 80 2007  
MINIMUM TEMPERATURE (F) 42 24 2018  
 
SUNRISE AND SUNSET  
OCTOBER 21 2021.......SUNRISE 7:12 AM CDT SUNSET 6:02 PM CDT  
OCTOBER 22 2021.......SUNRISE 7:13 AM CDT SUNSET 6:00 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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