988  
CDUS43 KLOT 210632  
CLILOT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
132 AM CDT THU AUG 21 2025  
   
...............................  
 
   
..THE ROMEOVILLE WFO CLIMATE SUMMARY FOR AUGUST 20 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 76 91 2010 82 -6 73  
2023  
MINIMUM 66 49 1992 63 3 57  
AVERAGE 71 73 -2 65  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 2.39 2022 0.13 -0.13 0.00  
MONTH TO DATE 5.86 2.82 3.04 2.31  
SINCE JUN 1 13.72 12.00 1.72 11.30  
SINCE JAN 1 24.64 27.80 -3.16 32.26  
 
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 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  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 2  
SINCE JUN 1 17 25 -8 10  
SINCE JUL 1 0 2 -2 2  
 
COOLING  
YESTERDAY 6 8 -2 0  
MONTH TO DATE 213 171 42 149  
SINCE JUN 1 836 671 165 688  
SINCE JAN 1 880 748 132 759    
........................................................  
 
THE ROMEOVILLE WFO CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 82 94 2003  
MINIMUM TEMPERATURE (F) 63 49 1992  
 
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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