Weather in Knoxville in September
In an average September, Knoxville sees a daily high around 82°F and a low around 62°F, based on 1980–2026 of local climate records.
| Average high | 82°F |
|---|---|
| Typical high range | 75°F to 89°F |
| Average low | 62°F |
| Typical low range | 54°F to 69°F |
| Average daily precipitation | 0.10 in |
September records
The most extreme September on record for each metric, across 1980–2026. For rainfall, the wettest and driest are by total September accumulation.
High
Highest
98°F
2011-09-03
Lowest
54°F
1995-09-23
Low
Highest
75°F
2019-09-14
Lowest
38°F
1983-09-22
Feels-like
Highest
124°F
2011-09-03
Lowest
33°F
1983-09-22
Humidity
Highest
20.8 g/m³
2018-09-13
Lowest
5.7 g/m³
1993-09-30
Wind
Highest
20 mph
2008-09-14
Lowest
2 mph
2015-09-17
Gust
Highest
55 mph
2024-09-27
Lowest
8 mph
2024-09-20
Precip
Wettest
8.28 in
2004
Driest
0.21 in
2019
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