946  
CDUS43 KLOT 200643  
CLIRFD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
143 AM CDT WED AUG 20 2025  
   
...............................  
 
   
..THE ROCKFORD IL CLIMATE SUMMARY FOR AUGUST 19 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 81 5:00 PM 100 1916 82 -1 79  
1947  
MINIMUM 67 11:59 PM 44 1915 62 5 60  
AVERAGE 74 72 2 70  
 
PRECIPITATION (IN)  
YESTERDAY T 3.41 1990 0.14 -0.14 0.00  
MONTH TO DATE 2.94 2.55 0.39 1.18  
SINCE JUN 1 12.81 11.59 1.22 13.44  
SINCE JAN 1 21.21 25.15 -3.94 28.44  
 
SNOWFALL (IN)  
YESTERDAY 0.0 0.0 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 9 30 -21 10  
SINCE JUL 1 0 3 -3 4  
 
COOLING  
YESTERDAY 9 7 2 5  
MONTH TO DATE 180 147 33 140  
SINCE JUN 1 798 603 195 672  
SINCE JAN 1 836 664 172 740    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION N (340)  
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION N (340)  
AVERAGE WIND SPEED 6.7  
 
SKY COVER  
AVERAGE SKY COVER 0.8  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 97 3:00 AM  
LOWEST 67 5:00 PM  
AVERAGE 82  
   
......................................................  
 
THE ROCKFORD IL CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 82 100 1947  
MINIMUM TEMPERATURE (F) 62 47 1897  
1940  
 
SUNRISE AND SUNSET  
AUGUST 20 2025........SUNRISE 6:09 AM CDT SUNSET 7:49 PM CDT  
AUGUST 21 2025........SUNRISE 6:11 AM CDT SUNSET 7:48 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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