Washington County (Johnson City)
December
Weather in Washington County, Tennessee for December 2025
Your guide to Washington County weather in December - trends and predictions
With an average of 3 snowy days, Washington County usually enjoys a light touch of snow in December.
In general, the average temperature in Washington County at the beginning of December is 2.4 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 12.1 °F by the end of December.
The climate of Washington County in December is notably wet, with an average of 13 rainy days, and a total of 151.6 mm of precipitation.
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Snow Forecast ❄️
Temperatures
Rain 🌧️
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15
Dry days
13
Rainy days
3
Snow days
8°/1°
Temperatures
16 km/h
Avg max wind
74 %
Avg humidity
Washington County Weather December
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Temperatures trend during December in Washington County
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December weather in Washington County day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| Dec. 1 |  Patchy rain possible | 4° /-2° | 0.2 mm | 0 cm | |
| Dec. 2 |  Cloudy | 0° /-5° | 0.9 mm | 0.5 cm | |
| Dec. 3 |  Light freezing rain | -2° /-5° | 1.1 mm | 0.5 cm | |
| Dec. 4 |  Overcast | 7° /-6° | 0 mm | 0 cm | |
| Dec. 5 | Patchy rain possible | 4° /-7° | 0.6 mm | 0 cm | |
| Dec. 6 |  Partly cloudy | 0° /-8° | 0 mm | 0 cm | |
| Dec. 7 |  Sunny | 4° /-7° | 0 mm | 0 cm | |
| Dec. 8 | Overcast | 9° /2° | 0 mm | 0 cm | |
| Dec. 9 |  Moderate or heavy rain shower | 13° /5° | 19.2 mm | 0 cm | |
| Dec. 10 | Moderate or heavy rain shower | 19° /10° | 12.5 mm | 0 cm | |
| Dec. 11 | Moderate or heavy rain shower | 9° /-2° | 18.8 mm | 0.5 cm | |
| Dec. 12 | Partly cloudy | 3° /-2° | 0 mm | 0 cm | |
| Dec. 13 | Overcast | 7° /0° | 0 mm | 0 cm | |
| Dec. 14 | Overcast | 9° /1° | 0 mm | 0 cm | |
| Dec. 15 | Moderate or heavy rain shower | 9° /3° | 14.4 mm | 0 cm | |
| Dec. 16 | Patchy rain possible | 16° /6° | 0.4 mm | 0 cm | |
| Dec. 17 | Patchy rain possible | 13° /11° | 1.4 mm | 0 cm | |
| Dec. 18 |  Heavy rain at times | 18° /8° | 7 mm | 0 cm | |
| Dec. 19 | Overcast | 6° /1° | 1 mm | 0 cm | |
| Dec. 20 | Light freezing rain | 4° /-2° | 1.2 mm | 0 cm | |
| Dec. 21 | Overcast | 0° /-3° | 0.1 mm | 0 cm | |
| Dec. 22 | Partly cloudy | 1° /-6° | 0 mm | 0 cm | |
| Dec. 23 | Sunny | 8° /-3° | 0 mm | 0 cm | |
| Dec. 24 | Overcast | 6° /-1° | 0 mm | 0 cm | |
| Dec. 25 | Overcast | 9° /0° | 0 mm | 0 cm | |
| Dec. 26 | Overcast | 13° /1° | 0 mm | 0 cm | |
| Dec. 27 | Overcast | 9° /2° | 9.7 mm | 0 cm | |
| Dec. 28 | Moderate or heavy rain shower | 17° /9° | 40.3 mm | 0 cm | |
| Dec. 29 | Moderate or heavy rain shower | 15° /10° | 21.4 mm | 0 cm | |
| Dec. 30 | Patchy rain possible | 12° /7° | 1.3 mm | 0 cm | |
| Dec. 31 | Overcast | 10° /5° | 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 1°.
How much rainfall should be expected in Washington County during December?
Significant rainfall exceeding 151.6 mm is expected in Washington County during December, occurring over more than 13 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Washington County in December 2025?
Washington County experiences an average snowfall of 1.5 cm during December, occurring over 3 days.
What are the typical wind conditions in Washington County during December?
The average wind speed in Washington County during December is 16 km/h, suggesting breezy to windy conditions, depending on your activities.
Washington County snow forecast December 2025
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December rainfall patterns in Washington County
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Where is Washington County?Get accurate weather forecasts for Washington County, located at latitude 36.313 and longitude -82.353. Stay updated with localized weather information tailored for Washington County.
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