452  
CDUS43 KLOT 230646  
CLIRFD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
146 AM CDT SAT SEP 23 2023  
   
...............................
 
 
   
..THE ROCKFORD IL CLIMATE SUMMARY FOR SEPTEMBER 22 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 76 12:25 PM 93 1937 73 3 65  
MINIMUM 64 3:39 AM 30 1976 51 13 45  
AVERAGE 70 62 8 55  
 
PRECIPITATION (IN)  
YESTERDAY 0.03 3.05 2000 0.12 -0.09 0.00  
MONTH TO DATE 1.90 2.79 -0.89 5.71  
SINCE SEP 1 1.90 2.79 -0.89 5.71  
SINCE JAN 1 23.37 29.58 -6.21 33.80  
 
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 5 -5 10  
MONTH TO DATE 34 56 -22 21  
SINCE SEP 1 34 56 -22 21  
SINCE JUL 1 37 67 -30 23  
 
COOLING  
YESTERDAY 5 2 3 0  
MONTH TO DATE 75 76 -1 103  
SINCE SEP 1 75 76 -1 103  
SINCE JAN 1 748 815 -67 971    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION S (170)  
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION SE (130)  
AVERAGE WIND SPEED 6.6  
 
SKY COVER  
AVERAGE SKY COVER 1.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 96 1:00 AM  
LOWEST 66 12:00 PM  
AVERAGE 81  
   
......................................................
 
 
THE ROCKFORD IL CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 73 93 2017  
MINIMUM TEMPERATURE (F) 51 29 1974  
1995  
 
SUNRISE AND SUNSET  
SEPTEMBER 23 2023.....SUNRISE 6:45 AM CDT SUNSET 6:52 PM CDT  
SEPTEMBER 24 2023.....SUNRISE 6:46 AM CDT SUNSET 6:50 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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