426  
CDUS43 KLOT 220632  
CLIRFD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
1232 AM CST FRI DEC 22 2023  
   
...............................
 
 
   
..THE ROCKFORD IL CLIMATE SUMMARY FOR DECEMBER 21 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 43 6:19 PM 56 1967 33 10 30  
MINIMUM 33 1:32 AM -20 1963 19 14 6  
AVERAGE 38 26 12 18  
 
PRECIPITATION (IN)  
YESTERDAY T 0.63 2015 0.06 -0.06 T  
MONTH TO DATE 1.71 1.38 0.33 2.51  
SINCE DEC 1 1.71 1.38 0.33 2.51  
SINCE JAN 1 31.04 36.69 -5.65 39.42  
 
SNOWFALL (IN)  
YESTERDAY 0.0 4.6 1983 0.3 -0.3 T  
MONTH TO DATE 0.9 6.2 -5.3 1.4  
SINCE DEC 1 0.9 6.2 -5.3 1.4  
SINCE JUL 1 2.4 8.7 -6.3 3.7  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 27 39 -12 47  
MONTH TO DATE 621 764 -143 731  
SINCE DEC 1 621 764 -143 731  
SINCE JUL 1 1838 2080 -242 2007  
 
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 10 HIGHEST WIND DIRECTION E (70)  
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION E (70)  
AVERAGE WIND SPEED 4.4  
 
SKY COVER  
AVERAGE SKY COVER 1.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 82 8:00 AM  
LOWEST 65 3:00 PM  
AVERAGE 74  
   
......................................................
 
 
THE ROCKFORD IL CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 32 55 1957  
MINIMUM TEMPERATURE (F) 19 -19 1989  
 
SUNRISE AND SUNSET  
DECEMBER 22 2023......SUNRISE 7:22 AM CST SUNSET 4:28 PM CST  
DECEMBER 23 2023......SUNRISE 7:23 AM CST SUNSET 4:28 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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