943  
CDUS43 KLOT 200643  
CLILOT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
143 AM CDT WED AUG 20 2025  
   
...............................  
 
   
..THE ROMEOVILLE WFO CLIMATE SUMMARY FOR AUGUST 19 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 80 91 1995 83 -3 77  
MINIMUM 68 51 1992 63 5 61  
AVERAGE 74 73 1 69  
 
PRECIPITATION (IN)  
YESTERDAY 0.13 0.84 2007 0.14 -0.01 0.00  
MONTH TO DATE 5.86 2.69 3.17 2.31  
SINCE JUN 1 13.72 11.87 1.85 11.30  
SINCE JAN 1 24.64 27.67 -3.03 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 MM  
 
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 9 8 1 4  
MONTH TO DATE 207 163 44 149  
SINCE JUN 1 830 663 167 688  
SINCE JAN 1 874 740 134 759    
........................................................  
 
THE ROMEOVILLE WFO CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 82 91 2010  
2023  
MINIMUM TEMPERATURE (F) 63 49 1992  
 
SUNRISE AND SUNSET  
AUGUST 20 2025........SUNRISE 6:06 AM CDT SUNSET 7:44 PM CDT  
AUGUST 21 2025........SUNRISE 6:07 AM CDT SUNSET 7:43 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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