Oregon (Portland)
December
Weather in Oregon for December 2026
Your guide to Oregon weather in December - trends and predictions
In general, the average temperature in Oregon at the beginning of December is 9.1 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 7.6 °C by the end of December.
Oregon in December brings notable rainfall, with an average of 17 rainy days and a total precipitation of 439.2 mm.
Is December a good time to visit Oregon? check out the best time to travel to Oregon page.
✨ Is December a good time to visit Oregon? – Ask the AI Weatherman
Temperatures
Rain 🌧️
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14
Dry days
17
Rainy days
0
Snow days
8°/5°
Temperatures
13 km/h
Avg max wind
89 %
Avg humidity
Oregon Weather December
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What’s the Weather Like in Oregon This December?
Discover the average temperatures and weather trends across Oregon’s cities this December.
Temperatures trend during December in Oregon
See the weather trend as well as the moving average line
December weather in Oregon day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| Dec. 1 |  Patchy rain possible | 7° /1° | 2 mm | 0 cm | |
| Dec. 2 |  Moderate rain | 9° /4° | 14.7 mm | 0 cm | |
| Dec. 3 |  Heavy rain | 9° /3° | 21.3 mm | 0 cm | |
| Dec. 4 |  Light rain | 10° /5° | 1.7 mm | 0 cm | |
| Dec. 5 | Heavy rain | 10° /5° | 25 mm | 0 cm | |
| Dec. 6 | Moderate rain | 10° /6° | 16.5 mm | 0 cm | |
| Dec. 7 | Heavy rain | 9° /6° | 25.4 mm | 0 cm | |
| Dec. 8 | Moderate rain | 9° /6° | 21.4 mm | 0 cm | |
| Dec. 9 | Heavy rain | 8° /4° | 49.9 mm | 0 cm | |
| Dec. 10 | Moderate rain | 9° /6° | 11.9 mm | 0 cm | |
| Dec. 11 | Light drizzle | 10° /6° | 0.6 mm | 0 cm | |
| Dec. 12 | Light rain | 9° /6° | 2.6 mm | 0 cm | |
| Dec. 13 | Light rain | 9° /6° | 5.6 mm | 0 cm | |
| Dec. 14 | Light rain | 8° /5° | 8.8 mm | 0 cm | |
| Dec. 15 | Patchy rain possible | 9° /6° | 2.1 mm | 0 cm | |
| Dec. 16 | Moderate rain | 9° /6° | 20.1 mm | 0 cm | |
| Dec. 17 | Heavy rain | 10° /5° | 25.4 mm | 0 cm | |
| Dec. 18 | Heavy rain | 9° /5° | 31.5 mm | 0 cm | |
| Dec. 19 | Heavy rain | 8° /5° | 25.3 mm | 0 cm | |
| Dec. 20 | Light rain | 8° /5° | 4 mm | 0 cm | |
| Dec. 21 | Moderate rain | 9° /5° | 19.4 mm | 0 cm | |
| Dec. 22 |  Light freezing rain | 5° /2° | 5.9 mm | 0.6 cm | |
| Dec. 23 | Light freezing rain | 6° /2° | 11.3 mm | 0.7 cm | |
| Dec. 24 | Light rain | 8° /3° | 5.9 mm | 0 cm | |
| Dec. 25 |  Heavy rain at times | 7° /4° | 11.3 mm | 0 cm | |
| Dec. 26 | Moderate rain | 9° /4° | 23.3 mm | 0 cm | |
| Dec. 27 | Moderate rain | 7° /5° | 18.5 mm | 0 cm | |
| Dec. 28 | Light rain | 8° /4° | 2.9 mm | 0 cm | |
| Dec. 29 | Heavy rain at times | 8° /4° | 20.2 mm | 0 cm | |
| Dec. 30 | Light rain | 8° /5° | 3.7 mm | 0 cm | |
| Dec. 31 | Patchy rain possible | 7° /3° | 1 mm | 0 cm | |
| Next | |||||
Important Notice
Our weather forecast for Oregon 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 Oregon forecast closer to your planned date for the most up-to-date weather information.
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Oregon in December - FAQ
What are the expected maximum and minimum temperatures in Oregon during December?
During December, expect a variety of temperatures with highs around 8° and lows near 5°, suitable for diverse activities and preferences.
How much rainfall should be expected in Oregon during December?
Significant rainfall exceeding 439.2 mm is expected in Oregon during December, occurring over more than 17 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Oregon in December 2026?
Oregon typically sees 1.3 cm of snowfall during December.
What are the typical wind conditions in Oregon during December?
The average wind speed in Oregon during December is 13 km/h, suggesting breezy to windy conditions, depending on your activities.
Oregon snow forecast December 2026
Track daily snowfall levels and discover Oregon’s snowy potential this December ❄️
December rainfall patterns in Oregon
Explore the daily rainfall trends and prepare for Oregons December weather 💧
Typically, Oregon has 17 rainy days in December with a total of 439.2 mm of rainfall.
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