Here are the 10 coldest days in Dayton history, according to the National Weather Service:
(Note that one of those, from Jan. 17, 1977, was part of a miserable weather month in the Miami Valley.)
1. -28 degrees on Feb. 13, 1899
2. -25 degrees on Jan. 19, 1994
3. -25 degrees on Jan. 18, 1994
4. -24 degrees on Jan. 20, 1985
5. -22 degrees on Feb. 10, 1899
6. -21 degrees on Jan. 17, 1977
7. -21 degrees on Feb. 9, 1899
8. -20 degrees on Dec. 22, 1989
9. -20 degrees on Jan. 21, 1984
10. -19 degrees on Jan. 24, 1963
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