National Weather Service United States Department of Commerce

A Record Cold July Weekend! July 27-28 2013

 

...The coldest July weekend on record for Rockford and one of the top 10 coldest July weekends for Chicago...
 
An upper level low was situated over the Great Lakes region during the weekend. This brought strong upper level northerly winds into the Midwest from Canada which ushered September-like temperatures into the area during the weekend. The result was the coldest July weekend for Rockford and one of the top five coldest weekends for Chicago.
 
Chicago
1 59.8 JULY 3-4 1909
2 60.8 JULY 7-8 1883
  60.8 JULY 7-8 1984
  60.8 JULY 27-28 2013
5 61.3 JULY 5-6 1873
6 62.5 JULY 22-23 2000
  62.5 JULY 7-8 1894
8 63.0 JULY 7-8 1894
9 63.0 JULY 25-26 1891
  63.0 JULY 14-15 1945
  63.0 JULY 15-16 1967
  63.0 JULY 20-21 1996

 

Rockford
1 60.5 JULY 27-28 2013
2 61.0 JULY 12-13 1975
3 61.8 JULY 14-15 1962
  61.8 JULY 7-8 1984
5 62.0 JULY 1-2 1995
  62.0 JULY 18-19 2009
7 62.5 JULY 2-3 1904
8 62.8 JULY 3-4 1915
9 63.3 JULY 20-21 1912
  63.3 JULY 2-3 1932

 

 

 

 

New Record Low Max for July 27th

Old Record

Chicago

65°

69° (1981)

Rockford

65°

67° (1981)