Marion County (Salem)
December
Weather in Marion County for December 2025
Your guide to Marion County weather in December - trends and predictions
In general, the average temperature in Marion County at the beginning of December is 9.3 °F. As the month progressed, temperatures tended to slightly decrease, reaching an average of 8.9 °F by the end of December.
Marion County in December brings notable rainfall, with an average of 18 rainy days and a total precipitation of 212.3 mm.
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Temperatures
Rain 🌧️
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13
Dry days
18
Rainy days
0
Snow days
9°/3°
Temperatures
11 km/h
Avg max wind
89 %
Avg humidity
Marion County in December average weather
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| Sun. | Mon. | Tue. | Wed. | Thu. | Fri. | Sat. |
|---|---|---|---|---|---|---|
| 1  6° | 2  10° | 3  9° | 4  11° | 5  10° | 6 10° | |
| 7 9° | 8 8° | 9  7° | 10 5° | 11  10° | 12 8° | 13  8° |
| 14 7° | 15 8° | 16 8° | 17 10° | 18 10° | 19 9° | 20 11° |
| 21 11° | 22 9° | 23 9° | 24 8° | 25 8° | 26 10° | 27 9° |
| 28 10° | 29 9° | 30 9° | 31 7° |
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Temperatures trend during December in Marion County
See the weather trend as well as the moving average line
December weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Dec. 1 | Light rain | 6° /2° | 1.6 mm | 2 | |
| Dec. 2 | Light rain shower | 10° /2° | 21.9 mm | 3 | |
| Dec. 3 | Heavy rain | 9° /1° | 34.6 mm | 3 | |
| Dec. 4 | Overcast | 11° /5° | 1.9 mm | 4 | |
| Dec. 5 | Moderate or heavy rain with thunder | 10° /4° | 34.3 mm | 3 | |
| Dec. 6 | Moderate or heavy rain with thunder | 10° /3° | 23.2 mm | 3 | |
| Dec. 7 | Light rain shower | 9° /5° | 30 mm | 2 | |
| Dec. 8 | Light rain shower | 8° /4° | 0.9 mm | 2 | |
| Dec. 9 | Moderate rain | 7° /1° | 8.3 mm | 2 | |
| Dec. 10 | Heavy rain | 5° /3° | 15.7 mm | 2 | |
| Dec. 11 | Fog | 10° /2° | 0.6 mm | 3 | |
| Dec. 12 | Mist | 8° /3° | 4.7 mm | 2 | |
| Dec. 13 | Partly cloudy | 8° /4° | 4 mm | 3 | |
| Dec. 14 | Patchy rain possible | 7° /4° | 6.4 mm | 2 | |
| Dec. 15 | Overcast | 8° /3° | 2.8 mm | 2 | |
| Dec. 16 | Overcast | 8° /3° | 9.8 mm | 2 | |
| Dec. 17 | Partly cloudy | 10° /4° | 14.1 mm | 4 | |
| Dec. 18 | Light drizzle | 10° /6° | 1.1 mm | 3 | |
| Dec. 19 | Light drizzle | 9° /5° | 2.5 mm | 3 | |
| Dec. 20 | Overcast | 11° /5° | 0 mm | 3 | |
| Dec. 21 | Mist | 11° /5° | 21.2 mm | 3 | |
| Dec. 22 | Light rain shower | 9° /5° | 7.6 mm | 3 | |
| Dec. 23 | Partly cloudy | 9° /4° | 11.7 mm | 3 | |
| Dec. 24 | Patchy rain possible | 8° /3° | 1.9 mm | 3 | |
| Dec. 25 | Light rain | 8° /3° | 14.7 mm | 2 | |
| Dec. 26 | Patchy rain possible | 10° /6° | 35.5 mm | 3 | |
| Dec. 27 | Light drizzle | 9° /5° | 18 mm | 3 | |
| Dec. 28 | Overcast | 10° /5° | 8.9 mm | 3 | |
| Dec. 29 | Patchy rain possible | 9° /5° | 45.7 mm | 2 | |
| Dec. 30 | Light rain shower | 9° /5° | 2.7 mm | 3 | |
| Dec. 31 | Mist | 7° /1° | 1 mm | 2 | |
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Important Notice
Our weather forecast for Marion 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 Marion County forecast closer to your planned date for the most up-to-date weather information.
Marion County in December - FAQ
What are the expected maximum and minimum temperatures in Marion County during December?
Prepare for cooler days with highs just around 9° and colder nights, dipping below 3°.
How much rainfall should be expected in Marion County during December?
Significant rainfall exceeding 212.3 mm is expected in Marion County during December, occurring over more than 18 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Marion County in December 2025?
Marion County typically sees 0 cm of snowfall during December.
What are the typical wind conditions in Marion County during December?
The average wind speed in Marion County during December is 11 km/h, suggesting breezy to windy conditions, depending on your activities.
December rainfall patterns in Marion County
Explore the daily rainfall trends and prepare for Marion Countys December weather 💧
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Where is Marion County?Get accurate weather forecasts for Marion County, located at latitude 44.943 and longitude -123.035. Stay updated with localized weather information tailored for Marion County.
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