111  
CDUS43 KLOT 160638  
CLILOT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
138 AM CDT SAT AUG 16 2025  
   
...............................  
 
   
..THE ROMEOVILLE WFO CLIMATE SUMMARY FOR AUGUST 15 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 90R 89 2000 83 7 74  
2015  
MINIMUM 66 48 2004 63 3 65  
AVERAGE 78 73 5 70  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.94 1993 0.15 -0.15 0.55  
MONTH TO DATE 0.55 2.11 -1.56 1.90  
SINCE JUN 1 8.41 11.29 -2.88 10.89  
SINCE JAN 1 19.33 27.09 -7.76 31.85  
 
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 13 8 5 5  
MONTH TO DATE 159 131 28 118  
SINCE JUN 1 782 631 151 657  
SINCE JAN 1 826 708 118 728    
........................................................  
 
THE ROMEOVILLE WFO CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 83 96 1995  
MINIMUM TEMPERATURE (F) 63 50 1992  
2004  
 
SUNRISE AND SUNSET  
AUGUST 16 2025........SUNRISE 6:02 AM CDT SUNSET 7:50 PM CDT  
AUGUST 17 2025........SUNRISE 6:03 AM CDT SUNSET 7:49 PM CDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.
The Nexlab IL Page
The Nexlab IN Page
Main Text Page