788  
CDUS43 KLOT 170633  
CLIRFD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
133 AM CDT SUN AUG 17 2025  
   
...............................  
 
   
..THE ROCKFORD IL CLIMATE SUMMARY FOR AUGUST 16 2025  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1905 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 89 2:08 PM 104 1988 82 7 86  
MINIMUM 68 5:40 AM 44 1992 62 6 67  
AVERAGE 79 72 7 77  
 
PRECIPITATION (IN)  
YESTERDAY 0.08 3.58 1968 0.14 -0.06 0.44  
MONTH TO DATE 2.29 2.13 0.16 1.18  
SINCE JUN 1 12.16 11.17 0.99 13.44  
SINCE JAN 1 20.56 24.73 -4.17 28.44  
 
SNOWFALL (IN)  
YESTERDAY 0.0 T 1935 0.0 0.0 0.0  
1948  
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 9 30 -21 10  
SINCE JUL 1 0 3 -3 4  
 
COOLING  
YESTERDAY 14 7 7 12  
MONTH TO DATE 146 126 20 117  
SINCE JUN 1 764 582 182 649  
SINCE JAN 1 802 643 159 717    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 35 HIGHEST WIND DIRECTION N (350)  
HIGHEST GUST SPEED 46 HIGHEST GUST DIRECTION N (340)  
AVERAGE WIND SPEED 4.5  
 
SKY COVER  
AVERAGE SKY COVER 0.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 97 11:00 PM  
LOWEST 61 11:00 AM  
AVERAGE 79  
   
......................................................  
 
THE ROCKFORD IL CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 82 102 1988  
MINIMUM TEMPERATURE (F) 62 46 1924  
 
SUNRISE AND SUNSET  
AUGUST 17 2025........SUNRISE 6:06 AM CDT SUNSET 7:54 PM CDT  
AUGUST 18 2025........SUNRISE 6:07 AM CDT SUNSET 7:52 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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