099  
CDUS43 KLOT 180638  
CLIRFD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
138 AM CDT SUN AUG 18 2024  
   
...............................  
 
   
..THE ROCKFORD IL CLIMATE SUMMARY FOR AUGUST 17 2024  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1905 TO 2024  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 81 3:31 PM 102 1988 82 -1 77  
MINIMUM 68 11:59 PM 46 1924 62 6 58  
AVERAGE 75 72 3 68  
 
PRECIPITATION (IN)  
YESTERDAY T 2.03 1979 0.14 -0.14 0.04  
MONTH TO DATE 1.18 2.27 -1.09 1.41  
SINCE JUN 1 13.44 11.31 2.13 7.63  
SINCE JAN 1 28.44 24.87 3.57 21.47  
 
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 2 0 2 0  
SINCE JUN 1 10 30 -20 20  
SINCE JUL 1 4 3 1 0  
 
COOLING  
YESTERDAY 10 7 3 3  
MONTH TO DATE 127 133 -6 101  
SINCE JUN 1 659 589 70 513  
SINCE JAN 1 727 650 77 561    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION NW (330)  
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION NW (320)  
AVERAGE WIND SPEED 9.1  
 
SKY COVER  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 2:00 AM  
LOWEST 62 3:00 PM  
AVERAGE 78  
   
......................................................  
 
THE ROCKFORD IL CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 82 101 1936  
MINIMUM TEMPERATURE (F) 62 45 1963  
 
SUNRISE AND SUNSET  
AUGUST 18 2024........SUNRISE 6:08 AM CDT SUNSET 7:52 PM CDT  
AUGUST 19 2024........SUNRISE 6:09 AM CDT SUNSET 7:50 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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