459  
CDUS43 KLOT 170632  
CLILOT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
132 AM CDT FRI OCT 17 2025  
   
...............................
 
 
   
..THE ROMEOVILLE WFO CLIMATE SUMMARY FOR OCTOBER 16 2025
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1992 TO 2025  
 
WEATHER ITEM OBSERVED RECORD YEAR NORMAL DEPARTURE LAST  
VALUE VALUE VALUE FROM YEAR  
NORMAL    
........................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 70 81 1998 64 6 57  
MINIMUM 57 30 2018 44 13 34  
AVERAGE 64 54 10 46  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.57 1996 0.13 -0.13 0.00  
2006  
MONTH TO DATE 0.75 1.98 -1.23 0.35  
SINCE SEP 1 1.46 5.29 -3.83 2.76  
SINCE JAN 1 26.47 34.63 -8.16 36.10  
 
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 1 12 -11 19  
MONTH TO DATE 62 143 -81 102  
SINCE SEP 1 111 223 -112 125  
SINCE JUL 1 123 229 -106 129  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 42 13 29 7  
SINCE SEP 1 173 119 54 153  
SINCE JAN 1 1076 944 132 1022    
........................................................
 
 
THE ROMEOVILLE WFO CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 63 83 2016  
MINIMUM TEMPERATURE (F) 43 26 1992  
 
SUNRISE AND SUNSET  
OCTOBER 17 2025.......SUNRISE 7:07 AM CDT SUNSET 6:08 PM CDT  
OCTOBER 18 2025.......SUNRISE 7:08 AM CDT SUNSET 6:06 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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