979  
CDUS43 KLOT 212133  
CLILOT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
433 PM CDT THU AUG 21 2025  
   
...............................
 
 
   
..THE ROMEOVILLE WFO CLIMATE SUMMARY FOR AUGUST 21 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 94 2003 82 -5 75  
MINIMUM 63 49 1992 63 0 53  
AVERAGE 70 72 -2 64  
 
PRECIPITATION (IN)  
TODAY 0.00 1.29 2014 0.14 -0.14 0.00  
MONTH TO DATE 5.86 2.96 2.90 2.31  
SINCE JUN 1 13.72 12.14 1.58 11.30  
SINCE JAN 1 24.64 27.94 -3.30 32.26  
 
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 JUN 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 0 0 1  
MONTH TO DATE 0 0 0 3  
SINCE JUN 1 17 25 -8 11  
SINCE JUL 1 0 2 -2 3  
 
COOLING  
TODAY 5 8 -3 0  
MONTH TO DATE 218 179 39 149  
SINCE JUN 1 841 679 162 688  
SINCE JAN 1 885 756 129 759    
........................................................
 
 
THE ROMEOVILLE WFO CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 82 89 1996  
2007  
MINIMUM TEMPERATURE (F) 63 51 1992  
2004  
2024  
 
SUNRISE AND SUNSET  
AUGUST 21 2025........SUNRISE 6:07 AM CDT SUNSET 7:43 PM CDT  
AUGUST 22 2025........SUNRISE 6:08 AM CDT SUNSET 7:41 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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