863  
CDUS43 KLOT 172147  
CLILOT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
447 PM CDT SUN AUG 17 2025  
   
...............................  
 
   
..THE ROMEOVILLE WFO CLIMATE SUMMARY FOR AUGUST 17 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 84 90 1995 83 1 81  
MINIMUM 68 49 1992 63 5 67  
AVERAGE 76 73 3 74  
 
PRECIPITATION (IN)  
TODAY 2.59R 0.77 1997 0.15 2.44 0.03  
MONTH TO DATE 3.51 2.41 1.10 2.31  
SINCE JUN 1 11.37 11.59 -0.22 11.30  
SINCE JAN 1 22.29 27.39 -5.10 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 0  
MONTH TO DATE 0 0 0 2  
SINCE JUN 1 17 25 -8 10  
SINCE JUL 1 0 2 -2 2  
 
COOLING  
TODAY 11 8 3 9  
MONTH TO DATE 186 147 39 138  
SINCE JUN 1 809 647 162 677  
SINCE JAN 1 853 724 129 748    
........................................................  
 
THE ROMEOVILLE WFO CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 83 90 1995  
MINIMUM TEMPERATURE (F) 63 53 2002  
2012  
 
SUNRISE AND SUNSET  
AUGUST 17 2025........SUNRISE 6:03 AM CDT SUNSET 7:49 PM CDT  
AUGUST 18 2025........SUNRISE 6:04 AM CDT SUNSET 7:47 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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