Marion County, Oregon Weather

The most pleasant months of the year for Marion County are July, September and August. In Marion County, there are 4 comfortable months with high temperatures in the range of 70-85°. August is the hottest month for Marion County with an average high temperature of 80.9°, which ranks it as cooler than most places in Oregon. December is the snowiest month in Marion County with 2.9 inches of snow, and 6 months of the year have significant snowfall. There are few days during the summer when the humidity becomes unpleasant.

Weather Highlights

Summer High: the July high is around 80 degrees
Winter Low: the January low is 34
Rain: averages 48 inches of rain a year
Snow: averages 12 inches of snow a year

BESTPLACES COMFORT INDEX

The annual BestPlaces Comfort Index for the Marion County area is 9.2 (10=best), which means it is more comfortable than most places in Oregon.

9.2 / 10

A higher score indicates a more comfortable year-round climate. The US average for the comfort index is 7.8. Our index is based on the total number of days annually within the comfort range of 70-80 degrees, and we also applied a penalty for days of excessive humidity.

Average Monthly High and Low (°F)

	High	Low
January	46°	34°
February	50°	34°
March	55°	37°
April	60°	40°
May	67°	45°
June	72°	49°
July	80°	53°
August	81°	52°
September	75°	48°
October	63°	42°
November	51°	38°
December	45°	33°

Hot, Freezing, Rainy, Snowy Days: Marion

	Hot Days	Freezing Days	Rainy Days	Snowy Days
January	0	12	19	1
February	0	10	16	1
March	0	7	18	1
April	0	3	16	0
May	0	1	13	0
June	1	0	9	0
July	4	0	4	0
August	4	0	3	0
September	2	0	7	0
October	0	2	12	0
November	0	7	20	0
December	0	13	19	1

YOU SHOULD KNOW

Many people confuse weather and climate but they are different. Weather is the conditions of the atmosphere over a short period of time, and climate is how the atmosphere is over long periods of time.

Weather is how the atmosphere is behaving and its effects upon life and human activities. Weather can change from minute-to-minute. Most people think of weather in terms of temperature, humidity, precipitation, cloudiness, brightness, visibility, wind, and atmospheric pressure.

Climate is the description of the long-term pattern of weather in a place. Climate can mean the average weather for a particular region and time period taken over 30 years. Climate is the average of weather over time.