986  
CDUS43 KLOT 210632  
CLIRFD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
132 AM CDT THU AUG 21 2025  
   
...............................  
 
   
..THE ROCKFORD IL CLIMATE SUMMARY FOR AUGUST 20 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 1:54 PM 100 1947 82 -1 74  
MINIMUM 61 11:47 PM 47 1897 62 -1 54  
1940  
AVERAGE 71 72 -1 64  
 
PRECIPITATION (IN)  
YESTERDAY 0.03 1.37 1937 0.13 -0.10 0.00  
MONTH TO DATE 2.97 2.68 0.29 1.18  
SINCE JUN 1 12.84 11.72 1.12 13.44  
SINCE JAN 1 21.24 25.28 -4.04 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 1  
MONTH TO DATE 0 0 0 3  
SINCE JUN 1 9 30 -21 11  
SINCE JUL 1 0 3 -3 5  
 
COOLING  
YESTERDAY 6 7 -1 0  
MONTH TO DATE 186 154 32 140  
SINCE JUN 1 804 610 194 672  
SINCE JAN 1 842 671 171 740    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION N (10)  
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION N (20)  
AVERAGE WIND SPEED 4.6  
 
SKY COVER  
AVERAGE SKY COVER 0.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 2:00 AM  
LOWEST 58 1:00 PM  
AVERAGE 79  
   
......................................................  
 
THE ROCKFORD IL CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 82 100 1916  
1955  
MINIMUM TEMPERATURE (F) 61 45 1950  
 
SUNRISE AND SUNSET  
AUGUST 21 2025........SUNRISE 6:11 AM CDT SUNSET 7:48 PM CDT  
AUGUST 22 2025........SUNRISE 6:12 AM CDT SUNSET 7:46 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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