617  
CDUS43 KLOT 310633  
CLIRFD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
133 AM CDT THU AUG 31 2023  
   
...............................
 
 
   
..THE ROCKFORD IL CLIMATE SUMMARY FOR AUGUST 30 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 73 4:49 PM 99 1953 80 -7 79  
MINIMUM 55 11:59 PM 35 1915 59 -4 61  
AVERAGE 64 70 -6 70  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.94 1956 0.14 -0.14 0.00  
MONTH TO DATE 1.41 4.04 -2.63 8.88  
SINCE JUN 1 7.63 13.08 -5.45 16.52  
SINCE JAN 1 21.47 26.64 -5.17 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 2 2 0 2  
SINCE JUN 1 22 32 -10 18  
SINCE JUL 1 2 5 -3 2  
 
COOLING  
YESTERDAY 0 6 -6 5  
MONTH TO DATE 213 216 -3 227  
SINCE JUN 1 625 672 -47 726  
SINCE JAN 1 673 733 -60 862    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION N (360)  
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION NE (60)  
AVERAGE WIND SPEED 5.5  
 
SKY COVER  
AVERAGE SKY COVER 0.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 90 4:00 AM  
LOWEST 41 4:00 PM  
AVERAGE 66  
   
......................................................
 
 
THE ROCKFORD IL CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 80 101 1953  
MINIMUM TEMPERATURE (F) 59 41 1915  
 
SUNRISE AND SUNSET  
AUGUST 31 2023........SUNRISE 6:20 AM CDT SUNSET 7:32 PM CDT  
SEPTEMBER 1 2023.....SUNRISE 6:22 AM CDT SUNSET 7:31 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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