Tri-Cities
December
Weather in Tri-Cities for December 2025
Your guide to Tri-Cities weather in December - trends and predictions
With an average of 2 snowy days, Tri-Cities usually enjoys a light touch of snow in December.
In general, the average temperature in Tri-Cities at the beginning of December is 6.3 °F. As the month progressed, temperatures tended to slightly decrease, reaching an average of 6.1 °F by the end of December.
Tri-Cities experiences moderate rainfall in December, with an average of 10 rainy days and a total precipitation of 54.4 mm.
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Snow Forecast ❄️
Temperatures
Rain 🌧️
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19
Dry days
10
Rainy days
2
Snow days
4°/-1°
Temperatures
14 km/h
Avg max wind
84 %
Avg humidity
Tri-Cities in December average weather
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| Sun. | Mon. | Tue. | Wed. | Thu. | Fri. | Sat. |
|---|---|---|---|---|---|---|
| 1  6° | 2  5° | 3  7° | 4  4° | 5 6° | 6 7° | |
| 7 9° | 8  9° | 9 4° | 10 4° | 11 6° | 12  4° | 13  6° |
| 14  6° | 15 5° | 16 4° | 17  6° | 18 9° | 19 5° | 20 7° |
| 21 6° | 22 -3° | 23  -1° | 24  2° | 25 3° | 26 7° | 27  7° |
| 28 9° | 29 5° | 30 8° | 31 4° |
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Temperatures trend during December in Tri-Cities
See the weather trend as well as the moving average line
December weather day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| Dec. 1 | Moderate or heavy sleet | 6° /-2° | 1.8 mm | 0 cm | |
| Dec. 2 | Patchy rain possible | 5° /0° | 0 mm | 0 cm | |
| Dec. 3 | Moderate rain | 7° /1° | 4.6 mm | 0 cm | |
| Dec. 4 | Light rain | 4° /1° | 0.5 mm | 0 cm | |
| Dec. 5 | Light rain | 6° /1° | 6.2 mm | 0 cm | |
| Dec. 6 | Patchy rain possible | 7° /2° | 1.1 mm | 0 cm | |
| Dec. 7 | Light rain | 9° /0° | 7.2 mm | 0 cm | |
| Dec. 8 | Mist | 9° /0° | 0 mm | 0 cm | |
| Dec. 9 | Light drizzle | 4° /-2° | 0.5 mm | 0 cm | |
| Dec. 10 | Moderate rain | 4° /0° | 6.2 mm | 0 cm | |
| Dec. 11 | Patchy rain possible | 6° /-1° | 0.1 mm | 0 cm | |
| Dec. 12 | Overcast | 4° /-1° | 0 mm | 0 cm | |
| Dec. 13 | Partly cloudy | 6° /0° | 0 mm | 0 cm | |
| Dec. 14 | Cloudy | 6° /2° | 6.4 mm | 0 cm | |
| Dec. 15 | Overcast | 5° /0° | 0 mm | 0 cm | |
| Dec. 16 | Overcast | 4° /0° | 11 mm | 0 cm | |
| Dec. 17 | Sunny | 6° /1° | 4.5 mm | 0 cm | |
| Dec. 18 | Light drizzle | 9° /1° | 0.5 mm | 0 cm | |
| Dec. 19 | Patchy rain possible | 5° /0° | 0.1 mm | 0 cm | |
| Dec. 20 | Partly cloudy | 7° /2° | 0 mm | 0 cm | |
| Dec. 21 | Partly cloudy | 6° /1° | 2.1 mm | 0 cm | |
| Dec. 22 | Overcast | -3° /-8° | 5.2 mm | 0 cm | |
| Dec. 23 | Light freezing rain | -1° /-5° | 1.4 mm | 0 cm | |
| Dec. 24 | Moderate snow | 2° /-3° | 15.6 mm | 0.9 cm | |
| Dec. 25 | Light freezing rain | 3° /-3° | 1.8 mm | 0 cm | |
| Dec. 26 | Patchy rain possible | 7° /2° | 22.8 mm | 0 cm | |
| Dec. 27 | Moderate rain at times | 7° /1° | 3.9 mm | 0 cm | |
| Dec. 28 | Overcast | 9° /2° | 6.1 mm | 0 cm | |
| Dec. 29 | Patchy rain possible | 5° /1° | 6.7 mm | 0 cm | |
| Dec. 30 | Patchy rain possible | 8° /1° | 3 mm | 0.4 cm | |
| Dec. 31 | Cloudy | 4° /0° | 0.3 mm | 0 cm | |
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Important Notice
Our weather forecast for Tri-Cities 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 Tri-Cities forecast closer to your planned date for the most up-to-date weather information.
Tri-Cities in December - FAQ
What are the expected maximum and minimum temperatures in Tri-Cities during December?
Brace for cold days with temperatures not exceeding 4° and nights that are likely to be freezing. Winter clothing is essential for comfort and safety.
How much rainfall should be expected in Tri-Cities during December?
Moderate rainfall is anticipated in Tri-Cities during December, with a total of 54.4 mm spread over approximately 10 days. Considering plans for rainy days is advisable.
Will it snow in Tri-Cities in December 2025?
Tri-Cities experiences an average snowfall of 2.47 cm during December, occurring over 2 days.
What are the typical wind conditions in Tri-Cities during December?
The average wind speed in Tri-Cities during December is 14 km/h, suggesting breezy to windy conditions, depending on your activities.
Tri-Cities snow forecast December 2025
Track daily snowfall levels and discover Tri-Cities’s snowy potential this December ❄️
December rainfall patterns in Tri-Cities
Explore the daily rainfall trends and prepare for Tri-Citiess December weather 💧
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Where is Tri-Cities?Get accurate weather forecasts for Tri-Cities, located at latitude 46.245 and longitude -119.196. Stay updated with localized weather information tailored for Tri-Cities.
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