773  
CDUS43 KLOT 240635  
CLIRFD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
1235 AM CST SUN DEC 24 2023  
   
...............................
 
 
   
..THE ROCKFORD IL CLIMATE SUMMARY FOR DECEMBER 23 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 48 4:24 PM 62 2020 32 16 -2  
MINIMUM 42 4:21 AM -21 1983 18 24 -10  
AVERAGE 45 25 20 -6  
 
PRECIPITATION (IN)  
YESTERDAY T 0.70 2015 0.06 -0.06 0.00  
MONTH TO DATE 2.17 1.49 0.68 2.54  
SINCE DEC 1 2.17 1.49 0.68 2.54  
SINCE JAN 1 31.50 36.80 -5.30 39.45  
 
SNOWFALL (IN)  
YESTERDAY 0.0 4.9 1959 0.4 -0.4 0.0  
MONTH TO DATE 0.9 6.9 -6.0 2.9  
SINCE DEC 1 0.9 6.9 -6.0 2.9  
SINCE JUL 1 2.4 9.4 -7.0 5.2  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 20 40 -20 71  
MONTH TO DATE 663 844 -181 857  
SINCE DEC 1 663 844 -181 857  
SINCE JUL 1 1880 2160 -280 2133  
 
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 6 HIGHEST WIND DIRECTION SE (130)  
HIGHEST GUST SPEED 9 HIGHEST GUST DIRECTION SE (130)  
AVERAGE WIND SPEED 2.1  
 
SKY COVER  
AVERAGE SKY COVER 1.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 12:00 AM  
LOWEST 93 1:00 PM  
AVERAGE 97  
   
......................................................
 
 
THE ROCKFORD IL CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 32 55 1982  
2019  
2021  
MINIMUM TEMPERATURE (F) 18 -24 1983  
 
SUNRISE AND SUNSET  
DECEMBER 24 2023......SUNRISE 7:23 AM CST SUNSET 4:29 PM CST  
DECEMBER 25 2023......SUNRISE 7:23 AM CST SUNSET 4:30 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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