612  
CDUS43 KLOT 300633  
CLILOT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
133 AM CDT TUE SEP 30 2025  
   
...............................  
 
   
..THE ROMEOVILLE WFO CLIMATE SUMMARY FOR SEPTEMBER 29 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 88R 87 2002 72 16 73  
MINIMUM 59 33 1992 50 9 67  
AVERAGE 74 61 13 70  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.68 2019 0.10 -0.10 T  
MONTH TO DATE 0.71 3.20 -2.49 2.41  
SINCE SEP 1 0.71 3.20 -2.49 2.41  
SINCE JAN 1 25.72 32.54 -6.82 35.75  
 
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 6 -6 0  
MONTH TO DATE 49 76 -27 23  
SINCE SEP 1 49 76 -27 23  
SINCE JUL 1 61 82 -21 27  
 
COOLING  
YESTERDAY 9 2 7 5  
MONTH TO DATE 124 106 18 140  
SINCE SEP 1 124 106 18 140  
SINCE JAN 1 1027 931 96 1009    
........................................................  
 
THE ROMEOVILLE WFO CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 71 90 2005  
MINIMUM TEMPERATURE (F) 50 31 1993  
 
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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