440  
CDUS43 KLOT 040638  
CLILOT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
138 AM CDT THU SEP 04 2025  
   
...............................  
 
   
..THE ROMEOVILLE WFO CLIMATE SUMMARY FOR SEPTEMBER 3 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 71 90 1999 80 -9 76  
2015  
2023  
MINIMUM 54 50 1997 60 -6 56  
AVERAGE 63 70 -7 66  
 
PRECIPITATION (IN)  
YESTERDAY 0.06 0.52 2018 0.13 -0.07 0.00  
MONTH TO DATE 0.06 0.40 -0.34 0.00  
SINCE SEP 1 0.06 0.40 -0.34 0.00  
SINCE JAN 1 25.07 29.74 -4.67 33.34  
 
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 2 1 1 0  
MONTH TO DATE 2 3 -1 0  
SINCE SEP 1 2 3 -1 0  
SINCE JUL 1 14 9 5 4  
 
COOLING  
YESTERDAY 0 6 -6 1  
MONTH TO DATE 4 18 -14 6  
SINCE SEP 1 4 18 -14 6  
SINCE JAN 1 907 843 64 875    
........................................................  
 
THE ROMEOVILLE WFO CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 80 92 1999  
2018  
MINIMUM TEMPERATURE (F) 60 43 1997  
 
SUNRISE AND SUNSET  
SEPTEMBER 4 2025.....SUNRISE 6:22 AM CDT SUNSET 7:20 PM CDT  
SEPTEMBER 5 2025.....SUNRISE 6:23 AM CDT SUNSET 7:18 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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