Multnomah County, OR Weather


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The most pleasant months of the year for Multnomah County are July, September and August. In Multnomah County, there are 4 comfortable months with high temperatures in the range of 70-85°. August is the hottest month for Multnomah County with an average high temperature of 80.8°, which ranks it as cooler than most places in Oregon. December is the snowiest month in Multnomah County with 0.9 inches of snow, and 3 months of the year have significant snowfall. There are few days during the summer when the humidity becomes unpleasant.

Today's Weather - Multnomah, OR

7 PM PST

Chance Rain Showers

49°F

7 DAY FORECASTDESCRIPTIONHIGH/LOWWIND
TonightChance Rain Showers43° / 52°W 5 to 8 mph
Tuesday NightSlight Chance Rain Showers then Mostly Cloudy39° / 57°N 3 mph
Wednesday NightClear41° / 59°E 7 to 10 mph
Thursday NightPartly Cloudy then Slight Chance Light Rain40° / 58°E 6 mph
Friday NightLight Rain47° / 55°N 2 to 6 mph
Saturday NightLight Rain44° / 54°N 8 mph
Sunday NightRain45° / 52°W 8 to 12 mph

Weather Highlights

Summer High: the July high is around 80 degrees
Winter Low: the January low is 36
Rain: averages 45 inches of rain a year
Snow: averages 3 inches of snow a year


BESTPLACES COMFORT INDEX

The annual BestPlaces Comfort Index for the Multnomah County area is 9.4 (10=best), which means it is more comfortable than most places in Oregon.

9.4 / 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)
HighLow
January48° 36°
February52° 37°
March57° 39°
April61° 42°
May68° 47°
June73° 52°
July80° 55°
August81° 55°
September75° 51°
October64° 45°
November53° 40°
December46° 35°
Hot, Freezing, Rainy, Snowy Days: Multnomah
Hot
Days
Freezing
Days
Rainy
Days
Snowy
Days
January08191
February06161
March03180
April01160
May10130
June1090
July4040
August4040
September1070
October01130
November03200
December09191

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.

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