178  
CDUS43 KLOT 200638  
CLILOT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
138 AM CDT WED SEP 20 2023  
   
...............................
 
 
   
..THE ROMEOVILLE WFO CLIMATE SUMMARY FOR SEPTEMBER 19 2023
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1992 TO 2023  
 
WEATHER ITEM OBSERVED RECORD YEAR NORMAL DEPARTURE LAST  
VALUE VALUE VALUE FROM YEAR  
NORMAL    
........................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 66 91 2013 76 -10 80  
2021  
MINIMUM 55 40 1992 54 1 60  
AVERAGE 61 65 -4 70  
 
PRECIPITATION (IN)  
YESTERDAY 0.17 0.69 2005 0.10 0.07 T  
MONTH TO DATE 4.77 2.13 2.64 2.51  
SINCE SEP 1 4.77 2.13 2.64 2.51  
SINCE JAN 1 29.86 31.47 -1.61 31.13  
 
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 3 1 0  
MONTH TO DATE 31 31 0 11  
SINCE SEP 1 31 31 0 11  
SINCE JUL 1 33 37 -4 11  
 
COOLING  
YESTERDAY 0 3 -3 5  
MONTH TO DATE 62 84 -22 107  
SINCE SEP 1 62 84 -22 107  
SINCE JAN 1 805 909 -104 974    
........................................................
 
 
THE ROMEOVILLE WFO CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 75 94 2018  
MINIMUM TEMPERATURE (F) 54 40 2006  
 
SUNRISE AND SUNSET  
SEPTEMBER 20 2023.....SUNRISE 6:37 AM CDT SUNSET 6:53 PM CDT  
SEPTEMBER 21 2023.....SUNRISE 6:39 AM CDT SUNSET 6:52 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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