Weather in Knoxville, Tennessee, United States in September
In an average September, Knoxville sees a daily high around 83°F and a low around 60°F, based on 1981–2026 of local climate records.
| Average high | 83°F |
|---|---|
| Typical high range | 75°F to 91°F |
| Average low | 60°F |
| Typical low range | 51°F to 67°F |
| Average daily precipitation | 0.10 in |
September records
The most extreme September on record for each metric, across 1981–2026. For rainfall, the wettest and driest are by total September accumulation.
High
Highest
99°F
2011-09-02
Lowest
61°F
1984-09-30
Low
Highest
73°F
1998-09-06
Lowest
38°F
1993-09-30
Feels-like
Highest
121°F
2019-09-13
Lowest
33°F
1989-09-24
Humidity
Highest
20.6 g/m³
2020-09-02
Lowest
4.6 g/m³
1999-09-23
Wind
Highest
22 mph
2024-09-27
Lowest
3 mph
2023-09-05
Precip
Wettest
8.99 in
1989
Driest
0.31 in
2019
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