409  
CDUS43 KLOT 170647  
CLILOT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
147 AM CDT THU JUL 17 2025  
   
...............................
 
 
   
..THE ROMEOVILLE WFO CLIMATE SUMMARY FOR JULY 16 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 92 97 2012 85 7 87  
MINIMUM 70 53 2014 65 5 69  
AVERAGE 81 75 6 78  
 
PRECIPITATION (IN)  
YESTERDAY 0.40 0.79 2015 0.15 0.25 T  
MONTH TO DATE 1.43 2.26 -0.83 3.57  
SINCE JUN 1 4.43 6.94 -2.51 8.55  
SINCE JAN 1 15.35 22.74 -7.39 29.51  
 
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 0  
SINCE JUN 1 17 23 -6 8  
SINCE JUL 1 0 0 0 0  
 
COOLING  
YESTERDAY 16 10 6 13  
MONTH TO DATE 195 156 39 167  
SINCE JUN 1 455 356 99 419  
SINCE JAN 1 499 433 66 490    
........................................................
 
 
THE ROMEOVILLE WFO CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 85 99 2012  
MINIMUM TEMPERATURE (F) 65 53 2009  
 
SUNRISE AND SUNSET  
JULY 17 2025..........SUNRISE 5:33 AM CDT SUNSET 8:23 PM CDT  
JULY 18 2025..........SUNRISE 5:34 AM CDT SUNSET 8:23 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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