822  
CDUS43 KLOT 302135  
CLILOT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
435 PM CDT TUE SEP 30 2025  
   
...............................  
 
   
..THE ROMEOVILLE WFO CLIMATE SUMMARY FOR SEPTEMBER 30 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 83 90 2005 71 12 79  
MINIMUM 61 31 1993 50 11 62  
AVERAGE 72 60 12 71  
 
PRECIPITATION (IN)  
TODAY 0.00 0.24 2007 0.11 -0.11 0.00  
MONTH TO DATE 0.71 3.31 -2.60 2.41  
SINCE SEP 1 0.71 3.31 -2.60 2.41  
SINCE JAN 1 25.72 32.65 -6.93 35.75  
 
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 6 -6 0  
MONTH TO DATE 49 82 -33 23  
SINCE SEP 1 49 82 -33 23  
SINCE JUL 1 61 88 -27 27  
 
COOLING  
TODAY 7 2 5 6  
MONTH TO DATE 131 106 25 146  
SINCE SEP 1 131 106 25 146  
SINCE JAN 1 1034 931 103 1015    
........................................................  
 
THE ROMEOVILLE WFO CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 71 88 2019  
MINIMUM TEMPERATURE (F) 49 32 2003  
 
SUNRISE AND SUNSET  
SEPTEMBER 30 2025.....SUNRISE 6:48 AM CDT SUNSET 6:35 PM CDT  
OCTOBER 1 2025.......SUNRISE 6:49 AM CDT SUNSET 6:34 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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