Pendleton (OR)
December
Weather in Pendleton, Oregon for December 2025
Your guide to Pendleton weather in December - trends and predictions
In general, the average temperature in Pendleton at the beginning of December is 1.4 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 7.6 °F by the end of December.
Pendleton in December brings notable rainfall, with an average of 16 rainy days and a total precipitation of 144.8 mm.
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Temperatures
Rain 🌧️
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15
Dry days
16
Rainy days
0
Snow days
6°/1°
Temperatures
16 km/h
Avg max wind
84 %
Avg humidity
Pendleton Weather December
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Temperatures trend during December in Pendleton
See the weather trend as well as the moving average line
December weather in Pendleton day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Dec. 1 |  Cloudy | 1° /-1° | 0 mm | 1 | |
| Dec. 2 | Cloudy | 0° /-1° | 0 mm | 1 | |
| Dec. 3 |  Overcast | 0° /-1° | 0 mm | 1 | |
| Dec. 4 | Overcast | 0° /0° | 0 mm | 1 | |
| Dec. 5 | Overcast | 2° /-1° | 0 mm | 1 | |
| Dec. 6 | Overcast | 1° /-1° | 0 mm | 1 | |
| Dec. 7 |  Moderate or heavy rain shower | 6° /-1° | 18.2 mm | 2 | |
| Dec. 8 |  Patchy rain possible | 7° /2° | 0.9 mm | 2 | |
| Dec. 9 |  Partly cloudy | 5° /-1° | 0 mm | 3 | |
| Dec. 10 | Overcast | 0° /-2° | 0 mm | 1 | |
| Dec. 11 | Cloudy | 5° /-2° | 0 mm | 2 | |
| Dec. 12 |  Light freezing rain | 0° /-2° | 3.1 mm | 1 | |
| Dec. 13 | Moderate rain at times | 6° /0° | 4.6 mm | 2 | |
| Dec. 14 | Moderate or heavy rain shower | 9° /4° | 10.1 mm | 2 | |
| Dec. 15 | Patchy rain possible | 7° /0° | 0.1 mm | 2 | |
| Dec. 16 | Moderate or heavy rain shower | 3° /1° | 10.3 mm | 1 | |
| Dec. 17 | Moderate or heavy rain shower | 8° /2° | 10.7 mm | 2 | |
| Dec. 18 | Overcast | 12° /3° | 0.1 mm | 3 | |
| Dec. 19 | Cloudy | 7° /0° | 0 mm | 2 | |
| Dec. 20 | Overcast | 6° /2° | 0 mm | 2 | |
| Dec. 21 |  Heavy rain at times | 5° /2° | 8.2 mm | 2 | |
| Dec. 22 | Heavy rain at times | 9° /2° | 6.6 mm | 2 | |
| Dec. 23 | Overcast | 11° /5° | 1 mm | 3 | |
| Dec. 24 | Moderate or heavy rain shower | 9° /3° | 19 mm | 2 | |
| Dec. 25 | Heavy rain at times | 7° /0° | 9.3 mm | 2 | |
| Dec. 26 | Moderate or heavy rain shower | 10° /5° | 15.9 mm | 3 | |
| Dec. 27 | Moderate or heavy rain shower | 8° /3° | 14.6 mm | 2 | |
| Dec. 28 | Overcast | 9° /5° | 5.1 mm | 2 | |
| Dec. 29 | Patchy rain possible | 8° /4° | 6.8 mm | 2 | |
| Dec. 30 | Patchy rain possible | 6° /1° | 0.1 mm | 2 | |
| Dec. 31 | Partly cloudy | 5° /-1° | 0 mm | 2 | |
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Important Notice
Our weather forecast for Pendleton 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 Pendleton forecast closer to your planned date for the most up-to-date weather information.
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Pendleton in December - FAQ
What are the expected maximum and minimum temperatures in Pendleton during December?
Prepare for cooler days with highs just around 6° and colder nights, dipping below 1°.
How much rainfall should be expected in Pendleton during December?
Significant rainfall exceeding 144.8 mm is expected in Pendleton during December, occurring over more than 16 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Pendleton in December 2025?
Pendleton typically sees 0 cm of snowfall during December.
What are the typical wind conditions in Pendleton during December?
The average wind speed in Pendleton during December is 16 km/h, suggesting breezy to windy conditions, depending on your activities.
December rainfall patterns in Pendleton
Explore the daily rainfall trends and prepare for Pendletons December weather 💧
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