255  
CDUS43 KLOT 010645  
CLIRFD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
1245 AM CST WED JAN 01 2025  
   
...............................
 
 
   
..THE ROCKFORD IL CLIMATE SUMMARY FOR DECEMBER 31 2024
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1905 TO 2024  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 38 4:28 AM 56 1965 30 8 32  
MINIMUM 31 11:59 PM -17 1963 17 14 30  
AVERAGE 35 24 11 31  
 
PRECIPITATION (IN)  
YESTERDAY 0.01 0.72 1923 0.05 -0.04 0.03  
MONTH TO DATE 1.13 1.93 -0.80 3.13  
SINCE DEC 1 1.13 1.93 -0.80 3.13  
SINCE JAN 1 35.49 37.24 -1.75 32.46  
 
SNOWFALL (IN)  
YESTERDAY T 8.5 1978 0.3 -0.3 0.4  
MONTH TO DATE 4.6 9.4 -4.8 2.8  
SINCE DEC 1 4.6 9.4 -4.8 2.8  
SINCE JUL 1 5.2 11.9 -6.7 4.3  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 30 42 -12 34  
MONTH TO DATE 1091 1170 -79 883  
SINCE DEC 1 1091 1170 -79 883  
SINCE JUL 1 2073 2486 -413 2100  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 958 839 119 805    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION N (340)  
HIGHEST GUST SPEED 34 HIGHEST GUST DIRECTION W (290)  
AVERAGE WIND SPEED 13.0  
 
SKY COVER  
AVERAGE SKY COVER 1.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
LIGHT SNOW  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 89 1:00 AM  
LOWEST 72 11:00 PM  
AVERAGE 81  
   
......................................................
 
 
THE ROCKFORD IL CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 30 57 1897  
MINIMUM TEMPERATURE (F) 16 -13 1924  
1968  
2018  
 
SUNRISE AND SUNSET  
JANUARY 1 2025.......SUNRISE 7:25 AM CST SUNSET 4:35 PM CST  
JANUARY 2 2025.......SUNRISE 7:25 AM CST SUNSET 4:36 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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