748  
CDUS43 KLOT 230632  
CLILOT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
132 AM CDT TUE SEP 23 2025  
   
...............................  
 
   
..THE ROMEOVILLE WFO CLIMATE SUMMARY FOR SEPTEMBER 22 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 80 93 2017 74 6 72  
MINIMUM 63 33 1995 53 10 62  
AVERAGE 72 64 8 67  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.45 2024 0.11 -0.11 1.45  
MONTH TO DATE 0.70 2.47 -1.77 1.59  
SINCE SEP 1 0.70 2.47 -1.77 1.59  
SINCE JAN 1 25.71 31.81 -6.10 34.93  
 
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 0 4 -4 0  
MONTH TO DATE 49 42 7 17  
SINCE SEP 1 49 42 7 17  
SINCE JUL 1 61 48 13 21  
 
COOLING  
YESTERDAY 7 2 5 2  
MONTH TO DATE 93 92 1 131  
SINCE SEP 1 93 92 1 131  
SINCE JAN 1 996 917 79 1000    
........................................................  
 
THE ROMEOVILLE WFO CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 74 93 2017  
MINIMUM TEMPERATURE (F) 53 29 1995  
 
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