International Falls is staying true to its claim as "icebox of the nation.
The temperature dropped to 37 degrees Sunday, enough to set the ninth record low of 2009.
The previous record for July 19 was 43 degrees, set in 1958.
The National Weather Service said International Falls has had an average temperature of 57 degrees so far this month.
The coldest July on record, in its entirety, was in 1992 with an average of 59.4 degrees.