Rockford’s Official Records
 
Temperature (in degrees Fahrenheit)
            
  Highest Temperature…………………….... 112 degrees on July 14, 1936
  Lowest Temperature.……………………....   -27 degrees on January 10, 1982
     
  Warmest Month…………………………......  80.6 degrees in August 1921
  Coldest Month……...…………………….....   4.7 degrees in January 1912
     
  Warmest Season………………………….... 76.1 degrees in Summer of 1921
  Coldest Season……..……………………... 14.1 degrees in Winter of 1978-79
     
  Warmest Year...………………………….....   52.8 degrees in 1921 and 1931
  Coldest Year………..……………………..... 44.9 degrees in 1917
     
  Highest Dew Point………………………….  Missing for now
                 
                        
            
Precipitation (in inches)
            
  Wettest Year…..…………………………..... 56.48 in 1973
  Driest Year….……...…………………….....  22.87 in 1910
     
  Wettest Season…..………………………..... 25.76 Summer (Jun – Aug) of 1972
  Driest Season…………………………….....  1.28 Winter (Dec – Feb) of 2002 - 2003
     
   Wettest Month...…………………………..... 13.98 in August 2007
   Driest Month...……..…………………….....  0.01 in October 1952
     
  Greatest in 24 hours………………………... 7.43 on July 17 – 18, 1996
  Greatest calendar day………..…………….. 5.70 on August 15, 1987
             
            
                       
                                      
Snowfall (in inches)
 
  Seasonal (Jul – Jun) Greatest..…………… 74.5 in 1978 - 1979
  Seasonal (Jul – Jun) Least.……..……….... 2.8 in 1906 - 1907
  Winter (Dec – Feb) Greatest………………. 65.1 in 2007 – 2008
  Winter (Dec – Feb) Least…………………... 1.3 in 1906 - 1907  
     
  Greatest Total:  
            Month………………………………....... 36.1 in January, 1918
            Storm.………………………………. .... 16.3 on January 6 – 7, 1918
            24 hours.……………………………..... 16.3 on January 6 – 7, 1918
            Calendar Day………………………..... 13.5 on March 31, 1926
            Snow Depth………………………….... 27 inches in January 1979
                                                   
                                                                                                                                    
Pressure (in inches of Mercury)
 
  Highest…………..……………………….....  30.98 on Feb 16, 1989; Feb 1, 1979
  Lowest……….……..……………………..... 28.78 on April 3, 1982
            
Wind (in mph)
            
  Highest Gust………………………………..   Missing for now
  Coldest Wind Chill…..….………………….   -72 on January 20, 1985
             

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