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Chattanooga August Weather

Averages and records for weather in Chattanooga, Tennessee in the month of August.

Typical Chattanooga August Weather 1991–2020
Average daily high	89.9 °F
Average daily low	69.8 °F
Average monthly precipitation	3.7 inches
Average monthly snow	none
Daily chance of precipitation	30.4%
Daily chance of snow	0%

Chattanooga August Weather Records 1879–2024
Highest temperature	105 °F	August 23, 2007
Lowest temperature	50 °F	August 31, 1946
Highest daily low	80 °F	August 25, 1968
Lowest daily high	66 °F	August 27, 1944
Hottest average high temperature	97.4 °F	2007
Coldest average high temperature	81.6 °F	1920
Most daily precipitation	3.6 inches	August 5, 1941
Most monthly precipitation	12.4 inches	1920
Most daily snow	none	-
Most monthly snow	none	-

Note: Daily averages are a moving average which includes 14 days before and after

Day	Average (°F)		Record (°F)
Day	High	Low	High	Low
August 1	90.4	70.6	99	60
August 2	90.4	70.5	100	59
August 3	90.3	70.5	101	58
August 4	90.3	70.5	105	56
August 5	90.3	70.5	100	58
August 6	90.2	70.4	102	56
August 7	90.2	70.3	104	57
August 8	90.2	70.3	102	57
August 9	90.1	70.2	103	56
August 10	90.1	70.1	104	59
August 11	90.0	70.1	99	56
August 12	90.0	70.0	100	58
August 13	89.9	69.9	102	53
August 14	89.9	69.9	101	54
August 15	89.9	69.8	103	56
August 16	89.9	69.8	104	57
August 17	89.9	69.8	102	58
August 18	89.8	69.7	103	57
August 19	89.7	69.7	103	61
August 20	89.5	69.6	102	56
August 21	89.5	69.4	103	56
August 22	89.4	69.3	103	55
August 23	89.3	69.1	105	55
August 24	89.2	68.9	102	54
August 25	89.1	68.7	100	54
August 26	89.0	68.6	101	55
August 27	88.9	68.4	102	53
August 28	88.8	68.2	100	56
August 29	88.7	68.1	100	54
August 30	88.6	67.9	98	53
August 31	88.4	67.7	99	50

Weather Station Details

Years	Station	Coordinates
1940–2024	Chattanooga Lovell Airport	location
1879–1939	Chattanooga	location