623  
CDUS43 KLOT 232138  
CLILOT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
438 PM CDT TUE SEP 23 2025  
   
...............................
 
 
   
..THE ROMEOVILLE WFO CLIMATE SUMMARY FOR SEPTEMBER 23 2025
 
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 77 93 2017 74 3 67  
MINIMUM 63 29 1995 53 10 60  
AVERAGE 70 63 7 64  
 
PRECIPITATION (IN)  
TODAY 0.01 0.62 2001 0.11 -0.10 0.03  
MONTH TO DATE 0.71 2.58 -1.87 1.62  
SINCE SEP 1 0.71 2.58 -1.87 1.62  
SINCE JAN 1 25.72 31.92 -6.20 34.96  
 
SNOWFALL (IN)  
TODAY 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  
TODAY 0 4 -4 1  
MONTH TO DATE 49 46 3 18  
SINCE SEP 1 49 46 3 18  
SINCE JUL 1 61 52 9 22  
 
COOLING  
TODAY 5 2 3 0  
MONTH TO DATE 98 94 4 131  
SINCE SEP 1 98 94 4 131  
SINCE JAN 1 1001 919 82 1000    
........................................................
 
 
THE ROMEOVILLE WFO CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 74 91 2007  
2017  
MINIMUM TEMPERATURE (F) 52 36 2012  
 
SUNRISE AND SUNSET  
SEPTEMBER 23 2025.....SUNRISE 6:41 AM CDT SUNSET 6:47 PM CDT  
SEPTEMBER 24 2025.....SUNRISE 6:42 AM CDT SUNSET 6:46 PM CDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab IL Page
The Nexlab IN Page Main Text Page