Washington County (Johnson City)
December
Weather in Washington County, Tennessee for December 2026
Your guide to Washington County weather in December - trends and predictions
With an average of 2 snowy days, Washington County usually enjoys a light touch of snow in December.
Washington County experiences moderate rainfall in December, with an average of 9 rainy days and a total precipitation of 138 mm.
Is December a good time to visit Washington County? check out the best time to travel to Washington County page.
✨ Is December a good time to visit Washington County? – Ask the AI Weatherman
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20
Dry days
9
Rainy days
2
Snow days
8°/0°
Temperatures
14 km/h
Avg max wind
74 %
Avg humidity
Washington County Weather December
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Temperatures trend during December in Washington County
See the weather trend as well as the moving average line
December weather in Washington County day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| Dec. 1 |  Patchy rain possible | 5° /-3° | 0.1 mm | 0 cm | |
| Dec. 2 |  Moderate rain | 2° /-4° | 23.8 mm | 0.9 cm | |
| Dec. 3 |  Light freezing rain | 2° /-4° | 0.6 mm | 0.3 cm | |
| Dec. 4 |  Overcast | 6° /-3° | 0 mm | 0 cm | |
| Dec. 5 |  Light rain | 3° /-5° | 8.1 mm | 1.7 cm | |
| Dec. 6 |  Partly cloudy | 2° /-4° | 0 mm | 0 cm | |
| Dec. 7 |  Sunny | 6° /-4° | 0 mm | 0 cm | |
| Dec. 8 | Overcast | 6° /1° | 0 mm | 0 cm | |
| Dec. 9 |  Moderate or heavy rain shower | 9° /1° | 9.6 mm | 0 cm | |
| Dec. 10 | Moderate or heavy rain shower | 14° /6° | 6.2 mm | 0 cm | |
| Dec. 11 | Moderate or heavy rain shower | 5° /-3° | 9.4 mm | 0.3 cm | |
| Dec. 12 | Partly cloudy | 6° /-2° | 0 mm | 0 cm | |
| Dec. 13 | Overcast | 8° /1° | 0 mm | 0 cm | |
| Dec. 14 | Overcast | 6° /-5° | 0 mm | 0 cm | |
| Dec. 15 | Moderate or heavy rain shower | 6° /-5° | 7.2 mm | 0 cm | |
| Dec. 16 | Patchy rain possible | 12° /2° | 0.2 mm | 0 cm | |
| Dec. 17 | Patchy rain possible | 11° /6° | 0.7 mm | 0 cm | |
| Dec. 18 |  Heavy rain at times | 15° /6° | 7.4 mm | 0 cm | |
| Dec. 19 | Light rain | 8° /1° | 8.8 mm | 0 cm | |
| Dec. 20 | Light freezing rain | 9° /-3° | 0.6 mm | 0 cm | |
| Dec. 21 | Overcast | 4° /-1° | 0.1 mm | 0 cm | |
| Dec. 22 | Partly cloudy | 6° /-4° | 0 mm | 0 cm | |
| Dec. 23 | Patchy rain possible | 8° /1° | 1.4 mm | 0 cm | |
| Dec. 24 | Moderate rain | 9° /4° | 11 mm | 0 cm | |
| Dec. 25 | Overcast | 11° /6° | 0 mm | 0 cm | |
| Dec. 26 | Overcast | 13° /6° | 0 mm | 0 cm | |
| Dec. 27 | Light rain | 11° /6° | 6.7 mm | 0 cm | |
| Dec. 28 | Moderate rain | 15° /7° | 20.2 mm | 0 cm | |
| Dec. 29 | Moderate rain | 15° /3° | 15.3 mm | 0 cm | |
| Dec. 30 | Patchy rain possible | 6° /-1° | 0.6 mm | 0 cm | |
| Dec. 31 | Overcast | 7° /-1° | 0 mm | 0 cm | |
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Important Notice
Our weather forecast for Washington County 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 Washington County forecast closer to your planned date for the most up-to-date weather information.
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Washington County in December - FAQ
What are the expected maximum and minimum temperatures in Washington County during December?
Prepare for cooler days with highs just around 8° and colder nights, dipping below 0°.
How much rainfall should be expected in Washington County during December?
Significant rainfall exceeding 138 mm is expected in Washington County during December, occurring over more than 9 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Washington County in December 2026?
Washington County experiences an average snowfall of 3.2 cm during December, occurring over 2 days.
What are the typical wind conditions in Washington County during December?
The average wind speed in Washington County during December is 14 km/h, suggesting breezy to windy conditions, depending on your activities.
Washington County snow forecast December 2026
Track daily snowfall levels and discover Washington County’s snowy potential this December ❄️
On average, Washington County sees 2 snowy days during December, with approximately 3.2 cm of total snowfall.
December rainfall patterns in Washington County
Explore the daily rainfall trends and prepare for Washington Countys December weather 💧
Typically, Washington County has 9 rainy days in December with a total of 138 mm of rainfall.
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