084  
CDUS43 KLOT 100634  
CLIRFD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
1234 AM CST SUN DEC 10 2023  
   
...............................
 
 
   
..THE ROCKFORD IL CLIMATE SUMMARY FOR DECEMBER 9 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 49 3:30 AM 55 2020 36 13 37  
MINIMUM 33 11:59 PM -12 1958 22 11 31  
AVERAGE 41 29 12 34  
 
PRECIPITATION (IN)  
YESTERDAY 0.54 1.04 2003 0.07 0.47 0.54  
MONTH TO DATE 1.59 0.64 0.95 0.54  
SINCE DEC 1 1.59 0.64 0.95 0.54  
SINCE JAN 1 30.92 35.95 -5.03 37.45  
 
SNOWFALL (IN)  
YESTERDAY T 5.0 1931 0.3 -0.3 T  
MONTH TO DATE 0.9 2.5 -1.6 T  
SINCE DEC 1 0.9 2.5 -1.6 T  
SINCE JUL 1 2.4 5.0 -2.6 2.3  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 24 36 -12 31  
MONTH TO DATE 236 310 -74 289  
SINCE DEC 1 236 310 -74 289  
SINCE JUL 1 1453 1626 -173 1565  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 805 839 -34 978    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION W (250)  
HIGHEST GUST SPEED 31 HIGHEST GUST DIRECTION W (250)  
AVERAGE WIND SPEED 13.1  
 
SKY COVER  
AVERAGE SKY COVER 1.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
RAIN  
LIGHT RAIN  
LIGHT SNOW  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 97 1:00 AM  
LOWEST 60 3:00 PM  
AVERAGE 79  
   
......................................................
 
 
THE ROCKFORD IL CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 36 57 1911  
2015  
2020  
MINIMUM TEMPERATURE (F) 22 -20 1919  
 
SUNRISE AND SUNSET  
DECEMBER 10 2023......SUNRISE 7:14 AM CST SUNSET 4:24 PM CST  
DECEMBER 11 2023......SUNRISE 7:15 AM CST SUNSET 4:24 PM CST  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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