Weather in Eugene, Oregon for December 2025
Until now, December 2025 in Eugene has been nearly identical to the historical average, with a temperature of 10.5 °F (showing only a slight deviation of 0.3 °F).
The forecast for the next days in Eugene predicts temperatures to be around 10 °F, close to the historical average.
In general, the average temperature in Eugene at the beginning of December is 10.4 °F. As the month progressed, temperatures tended to slightly decrease, reaching an average of 10.3 °F by the end of December.
Eugene experiences heavy rainfall in December, with over 20 rainy days and an average total precipitation 415.1 mm.
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Eugene Weather December
Temperatures trend during December in Eugene
December weather in Eugene day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Dec. 1 |  Light rain | 8° /1° | 1.2 mm | 2 | |
| Dec. 2 |  Moderate rain | 10° /1° | 20 mm | 3 | |
| Dec. 3 |  Mist | 9° /3° | 25.1 mm | 2 | |
| Dec. 4 |  Overcast | 12° /3° | 0 mm | 3 | |
| Dec. 5 | Moderate rain | 13° /6° | 13.6 mm | 3 | |
| Dec. 6 |  Light rain shower | 12° /4° | 8.2 mm | 3 | |
| Dec. 7 |  Moderate or heavy rain with thunder | 9° /5° | 29.9 mm | 2 | |
| Dec. 8 | Light rain shower | 8° /4° | 7.2 mm | 2 | |
| Dec. 9 | Light rain | 9° /2° | 22.3 mm | 2 | |
| Dec. 10 | Moderate rain | 9° /4° | 10.2 mm | 2 | |
| Dec. 11 | Overcast | 12° /5° | 1.9 mm | 3 | |
| Dec. 12 | Mist | 10° /3° | 8.2 mm | 3 | |
| Dec. 13 |  Sunny | 12° /3° | 3.8 mm | 3 | |
| Dec. 14 | Overcast | 10° /5° | 15.5 mm | 3 | |
| Dec. 15 | Patchy rain possible | 16° /8° | 4.8 mm | 0 | |
| Dec. 16 | Moderate rain | 14° /11° | 11.4 mm | 0.1 | |
| Dec. 17 |  Heavy rain | 8° /5° | 30.8 mm | 0.2 | |
| Dec. 18 | Heavy rain | 12° /4° | 74.5 mm | 0 | |
| Dec. 19 | Heavy rain | 8° /3° | 30.4 mm | 0 | |
| Dec. 20 |  Partly cloudy | 7° /2° | 0 mm | 2 | |
| Dec. 21 | Moderate rain | 11° /3° | 10.8 mm | 2 | |
| Dec. 22 | Patchy rain possible | 8° /3° | 2.9 mm | 2 | |
| Dec. 23 | Patchy rain possible | 5° /1° | 1 mm | 1 | |
| Dec. 24 | Patchy rain possible | 11° /1° | 0.2 mm | 2 | |
| Dec. 25 | Mist | 12° /5° | 0 mm | 2 | |
| Dec. 26 | Patchy rain possible | 9° /4° | 1.7 mm | 2 | |
| Dec. 27 | Patchy rain possible | 12° /6° | 2.6 mm | 2 | |
| Dec. 28 | Overcast | 11° /5° | 0 mm | 2 | |
| Dec. 29 | Light drizzle | 11° /5° | 61.8 mm | 3 | |
| Dec. 30 | Light rain shower | 9° /5° | 9.2 mm | 3 | |
| Dec. 31 | Mist | 8° /0° | 0.7 mm | 2 | |
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Eugene in December - FAQ
December rainfall patterns in Eugene
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