Weather in Chattanooga, Tennessee, United States in August
In an average August, Chattanooga sees a daily high around 89°F and a low around 67°F, based on 1981–2026 of local climate records.
| Average high | 89°F |
|---|---|
| Typical high range | 82°F to 96°F |
| Average low | 67°F |
| Typical low range | 61°F to 72°F |
| Average daily precipitation | 0.10 in |
August records
The most extreme August on record for each metric, across 1981–2026. For rainfall, the wettest and driest are by total August accumulation.
High
Highest
105°F
1983-08-21
Lowest
69°F
2013-08-17
Low
Highest
76°F
2010-08-13
Lowest
50°F
1986-08-29
Feels-like
Highest
144°F
2010-08-04
Lowest
47°F
1989-08-08
Humidity
Highest
22.2 g/m³
2011-08-04
Lowest
8.6 g/m³
2025-08-28
Wind
Highest
17 mph
2005-08-30
Lowest
2 mph
2016-08-07
Precip
Wettest
8.79 in
2021
Driest
0.73 in
1999
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