Unseasonably Cool July 2009

July 2009
Unusually Cool Temperatures

The average temperatures across the region for July were four to six degrees below normal, which placed it among the top 5 coldest Julys on record for Cincinnati, Columbus and Dayton. For Cincinnati, this was the coldest July on record. Typically, the average July temperature for Cincinnati is 76.3, for Dayton is 74.3, and for Columbus is 75.1 degrees.

Final July Temperatures:

The average temperature at Cincinnati was 70.1 degrees, or 6.2 degrees below normal. This was the coldest July on record.

The average temperature at Dayton was 69.6 degrees, or 4.7 degrees below normal. This was the 2nd coldest July on record.

The average temperature at Columbus was 71.0 degrees, or 4.1 degrees below normal. This tied for the 4th coldest July on record.

Listed below are the top five coldest months of July for each location:

Cincinnati
Rank Average T Year
1 70.1 2009
2 70.7 1947
3 71.4 1891
4 72.1 1996
5 (t) 72.2 1950
5 (t) 72.2 1984

Columbus
Rank Average T Year
1 70.0 1891
2 70.5 1971
3 70.9 1920
4 (t) 71.0 2009
4 (t) 71.0 1947

Dayton
Rank Average T Year
1 69.2 1947
2 69.6 2009
3 69.9 1984
4 71.6 2007
5 71.9 2000

* Updated to correct Dayton records

SITES/GREENAWALT/FRANKS/HATZOS/BROOKS/RYAN/WOODRUM/HUGHES/HAWBLITZEL

Cincinnati
Rank	Average T	Year
1	70.1	2009
2	70.7	1947
3	71.4	1891
4	72.1	1996
5 (t)	72.2	1950
5 (t)	72.2	1984

Columbus
Rank	Average T	Year
1	70.0	1891
2	70.5	1971
3	70.9	1920
4 (t)	71.0	2009
4 (t)	71.0	1947

Dayton
Rank	Average T	Year
1	69.2	1947
2	69.6	2009
3	69.9	1984
4	71.6	2007
5	71.9	2000