841  
CDUS43 KLOT 080635  
CLIRFD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
135 AM CDT FRI SEP 08 2023  
   
...............................
 
 
   
..THE ROCKFORD IL CLIMATE SUMMARY FOR SEPTEMBER 7 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 70 3:51 PM 103 1939 78 -8 82  
MINIMUM 63 11:59 PM 37 1986 57 6 56  
AVERAGE 67 68 -1 69  
 
PRECIPITATION (IN)  
YESTERDAY T 2.20 1980 0.13 -0.13 0.00  
MONTH TO DATE 0.06 0.93 -0.87 T  
SINCE SEP 1 0.06 0.93 -0.87 T  
SINCE JAN 1 21.53 27.72 -6.19 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 SEP 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 2 -2 0  
MONTH TO DATE 0 8 -8 0  
SINCE SEP 1 0 8 -8 0  
SINCE JUL 1 3 19 -16 2  
 
COOLING  
YESTERDAY 2 4 -2 4  
MONTH TO DATE 58 32 26 41  
SINCE SEP 1 58 32 26 41  
SINCE JAN 1 731 771 -40 909    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION N (350)  
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION N (350)  
AVERAGE WIND SPEED 8.4  
 
SKY COVER  
AVERAGE SKY COVER 1.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 96 3:00 AM  
LOWEST 61 3:00 PM  
AVERAGE 79  
   
......................................................
 
 
THE ROCKFORD IL CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 78 101 1922  
MINIMUM TEMPERATURE (F) 57 37 1986  
 
SUNRISE AND SUNSET  
SEPTEMBER 8 2023.....SUNRISE 6:29 AM CDT SUNSET 7:19 PM CDT  
SEPTEMBER 9 2023.....SUNRISE 6:30 AM CDT SUNSET 7:17 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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