December

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December

Portland Weather December

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November

January

Temperatures trend during December in Portland

See the weather trend as well as the moving average line

December weather in Portland day by day

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November January

Date	Weather	Temperatures	Rain	Snow
Dec. 1	Light rain	4° /-1°	3.5 mm	0 cm
Dec. 2	Heavy rain	2° /-3°	38.9 mm	0 cm
Dec. 3	Heavy snow	3° /-1°	25.8 mm	12.3 cm
Dec. 4	Overcast	3° /-4°	0 mm	0 cm
Dec. 5	Light snow	2° /-5°	22.1 mm	2 cm
Dec. 6	Sunny	1° /-4°	0 mm	0 cm
Dec. 7	Light snow	1° /-3°	1.6 mm	0 cm
Dec. 8	Light snow	3° /-3°	4 mm	1.2 cm
Dec. 9	Moderate rain at times	1° /-4°	5.1 mm	3.2 cm
Dec. 10	Moderate rain	4° /-1°	23.1 mm	1.7 cm
Dec. 11	Heavy rain	8° /-1°	33.7 mm	0 cm
Dec. 12	Moderate rain	6° /-3°	10.4 mm	0 cm
Dec. 13	Partly cloudy	0° /-4°	0 mm	0 cm
Dec. 14	Sunny	0° /-6°	0 mm	0 cm
Dec. 15	Sunny	-1° /-7°	0 mm	0 cm
Dec. 16	Overcast	3° /-3°	0 mm	0 cm
Dec. 17	Moderate rain	6° /2°	12.4 mm	0 cm
Dec. 18	Overcast	5° /1°	0 mm	0 cm
Dec. 19	Heavy rain	8° /2°	48.7 mm	0 cm
Dec. 20	Overcast	0° /-3°	0 mm	0 cm
Dec. 21	Overcast	2° /-3°	0 mm	0 cm
Dec. 22	Sunny	-3° /-8°	0 mm	0 cm
Dec. 23	Light snow	-1° /-6°	4.8 mm	0 cm
Dec. 24	Light snow	2° /-3°	5.8 mm	4.2 cm
Dec. 25	Overcast	0° /-5°	0 mm	0 cm
Dec. 26	Cloudy	-2° /-8°	0 mm	0 cm
Dec. 27	Sunny	1° /-6°	0 mm	0 cm
Dec. 28	Overcast	2° /-4°	0 mm	0 cm
Dec. 29	Moderate rain	5° /1°	24.8 mm	0 cm
Dec. 30	Moderate rain	5° /-2°	18.8 mm	0 cm
Dec. 31	Partly cloudy	3° /-2°	0 mm	0 cm
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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.

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Portland in December - FAQ

What are the expected maximum and minimum temperatures in Portland during December?

Brace for cold days with temperatures not exceeding 2° and nights that are likely to be freezing. Winter clothing is essential for comfort and safety.

How much rainfall should be expected in Portland during December?

Significant rainfall exceeding 283.5 mm is expected in Portland during December, occurring over more than 7 days. Preparing for wet conditions is recommended in your planning.

Will it snow in Portland in December 2026?

Portland experiences an average snowfall of 24.6 cm during December, occurring over 3 days.

What are the typical wind conditions in Portland during December?

The average wind speed in Portland during December is 24 km/h, suggesting breezy to windy conditions, depending on your activities.

Portland snow forecast December 2026

Track daily snowfall levels and discover Portland’s snowy potential this December ❄️

On average, Portland sees 3 snowy days during December, with approximately 24.6 cm of total snowfall.

December rainfall patterns in Portland

Explore the daily rainfall trends and prepare for Portlands December weather 💧

Typically, Portland has 7 rainy days in December with a total of 283.5 mm of rainfall.

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Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
		1 4°	2 2°	3 3°	4 3°	5 2°
6 1°	7 1°	8 3°	9 1°	10 4°	11 8°	12 6°
13 0°	14 0°	15 -1°	16 3°	17 6°	18 5°	19 8°
20 0°	21 2°	22 -3°	23 -1°	24 2°	25 0°	26 -2°
27 1°	28 2°	29 5°	30 5°	31 3°