Knoxville (TN)
December
Weather in Knoxville, Tennessee for December 2026
Your guide to Knoxville weather in December - trends and predictions
Snowfall in Knoxville during December is quite rare, with fewer than 2 snowy days on average.
In general, the average temperature in Knoxville at the beginning of December is 6.7 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 11.1 °C by the end of December.
Knoxville experiences moderate rainfall in December, with an average of 6 rainy days and a total precipitation of 213.2 mm.
Is December a good time to visit Knoxville? check out the best time to travel to Knoxville page.
✨ Is December a good time to visit Knoxville? – Ask the AI Weatherman
Snow Forecast ❄️
Temperatures
Rain 🌧️
More
24
Dry days
6
Rainy days
1
Snow days
9°/2°
Temperatures
13 km/h
Avg max wind
73 %
Avg humidity
Knoxville Weather December
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Temperatures trend during December in Knoxville
See the weather trend as well as the moving average line
December weather in Knoxville day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| Dec. 1 |  Patchy rain possible | 8° /1° | 2 mm | 0 cm | |
| Dec. 2 |  Moderate or heavy rain with thunder | 7° /3° | 38.3 mm | 0 cm | |
| Dec. 3 | Light rain shower | 8° /1° | 2 mm | 0 cm | |
| Dec. 4 |  Fog | 6° /-1° | 0 mm | 0 cm | |
| Dec. 5 |  Moderate rain | 6° /0° | 10.5 mm | 0.5 cm | |
| Dec. 6 | Patchy rain possible | 4° /-1° | 0.1 mm | 0 cm | |
| Dec. 7 |  Freezing fog | 7° /-2° | 0 mm | 0 cm | |
| Dec. 8 |  Overcast | 9° /3° | 0 mm | 0 cm | |
| Dec. 9 | Moderate rain | 11° /4° | 21.7 mm | 0 cm | |
| Dec. 10 | Moderate rain | 14° /4° | 18.2 mm | 0 cm | |
| Dec. 11 | Overcast | 4° /0° | 0 mm | 0 cm | |
| Dec. 12 |  Cloudy | 9° /0° | 0 mm | 0 cm | |
| Dec. 13 | Overcast | 8° /2° | 0 mm | 0 cm | |
| Dec. 14 | Overcast | 7° /-1° | 0 mm | 0 cm | |
| Dec. 15 |  Sunny | 7° /-1° | 0 mm | 0 cm | |
| Dec. 16 | Cloudy | 11° /3° | 0 mm | 0 cm | |
| Dec. 17 |  Light rain | 10° /6° | 3.9 mm | 0 cm | |
| Dec. 18 |  Heavy rain at times | 12° /4° | 9.8 mm | 0 cm | |
| Dec. 19 | Moderate rain | 7° /1° | 20.1 mm | 0 cm | |
| Dec. 20 | Overcast | 8° /-1° | 0 mm | 0 cm | |
| Dec. 21 | Overcast | 8° /1° | 0 mm | 0 cm | |
| Dec. 22 | Overcast | 9° /0° | 0 mm | 0 cm | |
| Dec. 23 | Patchy rain possible | 10° /3° | 0 mm | 0 cm | |
| Dec. 24 | Sunny | 12° /5° | 0 mm | 0 cm | |
| Dec. 25 | Patchy rain possible | 13° /9° | 1.6 mm | 0 cm | |
| Dec. 26 | Light rain | 13° /8° | 2.9 mm | 0 cm | |
| Dec. 27 |  Heavy rain | 13° /9° | 28.8 mm | 0 cm | |
| Dec. 28 | Moderate rain | 12° /8° | 24 mm | 0 cm | |
| Dec. 29 | Heavy rain | 12° /3° | 28.9 mm | 0 cm | |
| Dec. 30 | Patchy rain possible | 6° /1° | 0.3 mm | 0.2 cm | |
| Dec. 31 | Cloudy | 9° /1° | 0 mm | 0 cm | |
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Important Notice
Our weather forecast for Knoxville in December is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Knoxville forecast closer to your planned date for the most up-to-date weather information.
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Knoxville in December - FAQ
What are the expected maximum and minimum temperatures in Knoxville during December?
Prepare for cooler days with highs just around 9° and colder nights, dipping below 2°.
How much rainfall should be expected in Knoxville during December?
Significant rainfall exceeding 213.2 mm is expected in Knoxville during December, occurring over more than 6 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Knoxville in December 2026?
Knoxville typically sees 0.8 cm of snowfall during December.
What are the typical wind conditions in Knoxville during December?
The average wind speed in Knoxville during December is 13 km/h, suggesting breezy to windy conditions, depending on your activities.
Knoxville snow forecast December 2026
Track daily snowfall levels and discover Knoxville’s snowy potential this December ❄️
On average, Knoxville sees 1 snowy days during December, with approximately 0.8 cm of total snowfall.
December rainfall patterns in Knoxville
Explore the daily rainfall trends and prepare for Knoxvilles December weather 💧
Typically, Knoxville has 6 rainy days in December with a total of 213.2 mm of rainfall.
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