842  
CDUS43 KLOT 010635  
CLIRFD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
135 AM CDT FRI SEP 01 2023  
   
...............................
 
 
   
..THE ROCKFORD IL CLIMATE SUMMARY FOR AUGUST 31 2023
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1905 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 77 3:47 PM 101 1953 80 -3 85  
MINIMUM 50 5:50 AM 41 1915 59 -9 56  
AVERAGE 64 70 -6 71  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 2.32 1981 0.15 -0.15 0.00  
MONTH TO DATE 1.41 4.19 -2.78 8.88  
SINCE JUN 1 7.63 13.23 -5.60 16.52  
SINCE JAN 1 21.47 26.79 -5.32 28.09  
 
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 1 1 0 0  
MONTH TO DATE 3 3 0 2  
SINCE JUN 1 23 33 -10 18  
SINCE JUL 1 3 6 -3 2  
 
COOLING  
YESTERDAY 0 5 -5 6  
MONTH TO DATE 213 222 -9 233  
SINCE JUN 1 625 678 -53 732  
SINCE JAN 1 673 739 -66 868    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION SE (140)  
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION SE (120)  
AVERAGE WIND SPEED 3.6  
 
SKY COVER  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 4:00 AM  
LOWEST 42 3:00 PM  
AVERAGE 68  
   
......................................................
 
 
THE ROCKFORD IL CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 80 102 1953  
MINIMUM TEMPERATURE (F) 59 41 1909  
1949  
 
SUNRISE AND SUNSET  
SEPTEMBER 1 2023.....SUNRISE 6:22 AM CDT SUNSET 7:31 PM CDT  
SEPTEMBER 2 2023.....SUNRISE 6:23 AM CDT SUNSET 7:29 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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