Portland
December
Weather in Portland for December 2024
Your guide to Portland weather in December - trends and predictions
In general, the average temperature in Portland at the beginning of December is 11.7 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 8 °F by the end of December.
Expect significant rainfall in Portland during December, with an average of 19 rainy days.
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12
Dry days
19
Rainy days
0
Snow days
9°/4°
Temperatures
13 km/h
Avg max wind
86 %
Avg humidity
Portland in December average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  10° | ||||||
| 2  11° | 3  12° | 4  14° | 5 14° | 6  13° | 7 8° | 8  7° |
| 9 7° | 10 9° | 11 9° | 12 9° | 13  9° | 14 8° | 15  9° |
| 16 9° | 17  10° | 18 7° | 19 8° | 20 10° | 21 11° | 22  2° |
| 23 3° | 24  5° | 25  5° | 26 9° | 27 7° | 28 9° | 29 8° |
| 30 9° | 31 9° |
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Temperatures trend during December in Portland
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 rain | 10° /3° | 6 mm | 0 cm | |
| Dec. 2 | Light rain shower | 11° /7° | 44 mm | 0 cm | |
| Dec. 3 | Heavy rain | 12° /6° | 63.9 mm | 0 cm | |
| Dec. 4 | Light rain | 14° /11° | 5 mm | 0 cm | |
| Dec. 5 | Heavy rain | 14° /9° | 60.2 mm | 0 cm | |
| Dec. 6 | Moderate or heavy rain with thunder | 13° /7° | 49.4 mm | 0 cm | |
| Dec. 7 | Light rain shower | 8° /5° | 14.8 mm | 0 cm | |
| Dec. 8 | Fog | 7° /3° | 1.3 mm | 0 cm | |
| Dec. 9 | Moderate rain | 7° /2° | 24 mm | 0 cm | |
| Dec. 10 | Moderate rain | 9° /6° | 35.8 mm | 0 cm | |
| Dec. 11 | Light drizzle | 9° /6° | 1.8 mm | 0 cm | |
| Dec. 12 | Mist | 9° /3° | 0 mm | 0 cm | |
| Dec. 13 | Partly cloudy | 9° /4° | 0 mm | 0 cm | |
| Dec. 14 | Patchy rain possible | 8° /5° | 0.2 mm | 0 cm | |
| Dec. 15 | Overcast | 9° /4° | 0 mm | 0 cm | |
| Dec. 16 | Overcast | 9° /3° | 0 mm | 0 cm | |
| Dec. 17 | Sunny | 10° /3° | 0 mm | 0 cm | |
| Dec. 18 | Light drizzle | 7° /4° | 0.6 mm | 0 cm | |
| Dec. 19 | Light drizzle | 8° /5° | 4.5 mm | 0 cm | |
| Dec. 20 | Mist | 10° /4° | 0 mm | 0 cm | |
| Dec. 21 | Mist | 11° /5° | 0 mm | 0 cm | |
| Dec. 22 | Light freezing rain | 2° /-3° | 5.9 mm | 1.3 cm | |
| Dec. 23 | Light freezing rain | 3° /-3° | 3.3 mm | 1.4 cm | |
| Dec. 24 | Moderate or heavy rain shower | 5° /0° | 5.8 mm | 0 cm | |
| Dec. 25 | Heavy rain at times | 5° /3° | 8.7 mm | 0 cm | |
| Dec. 26 | Moderate or heavy rain shower | 9° /4° | 22.5 mm | 0 cm | |
| Dec. 27 | Moderate or heavy rain shower | 7° /5° | 19 mm | 0 cm | |
| Dec. 28 | Patchy rain possible | 9° /4° | 1.6 mm | 0 cm | |
| Dec. 29 | Heavy rain at times | 8° /5° | 8.9 mm | 0 cm | |
| Dec. 30 | Heavy rain at times | 9° /5° | 7.4 mm | 0 cm | |
| Dec. 31 | Patchy rain possible | 9° /4° | 0.9 mm | 0 cm | |
| Next | |||||
Important Notice
Our weather forecast for Portland 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 Portland forecast closer to your planned date for the most up-to-date weather information.
Portland in December - FAQ
What are the expected maximum and minimum temperatures in Portland during December?
Prepare for cooler days with highs just around 9° and colder nights, dipping below 4°.
How much rainfall should be expected in Portland during December?
Significant rainfall exceeding 479.4 mm is expected in Portland during December, occurring over more than 19 days. Preparing for wet conditions is recommended in your planning.
Is snowfall common in Portland during December?
Portland experiences an average snowfall of 5.3 cm during December, occurring over 0 days, which may interest winter sports enthusiasts.
What are the typical wind conditions in Portland during December?
The average wind speed in Portland during December is 13 km/h, suggesting breezy to windy conditions, depending on your activities.
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