Wilsonville
Oregon, USA
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Wilsonville, OR

A row of beautiful modern homes in a leafy suburb spot in Wilsonville, Oregon, in the fall colors with the beauty of the clear
A row of beautiful modern homes in a leafy suburb spot in Wilsonville, Oregon, in the fall colors with the beauty of the clear
January, the same as December, in Wilsonville, Oregon, is another chilly winter month, with average temperature varying between 35.1°F (1.7°C) and 46°F (7.8°C). In Wilsonville, Oregon, the average high-temperature is almost the same as in December - a still frosty 46°F (7.8°C). Weather in January »

The last month of the winter, February, is another chilly month in Wilsonville, Oregon, with temperature in the range of an average high of 47.5°F (8.6°C) and an average low of 35.1°F (1.7°C). In Wilsonville, Oregon, the average high-temperature in February is essentially the same as in January - a still chilly 47.5°F (8.6°C). Weather in February »

The first month of the spring, March, is a fresh month in Wilsonville, Oregon, with average temperature fluctuating between 51.8°F (11°C) and 37.4°F (3°C). In Wilsonville, the average high-temperature in March is relatively the same as in February - a fresh 51.8°F (11°C). Weather in March »

April is a mild spring month in Wilsonville, Oregon, with average temperature fluctuating between 39°F (3.9°C) and 58.1°F (14.5°C). In Wilsonville, the average high-temperature in April slightly increases, from a cool 51.8°F (11°C) in March, to a moderate 58.1°F (14.5°C). Weather in April »

May, the last month of the spring, in Wilsonville, is a comfortable month, with average temperature fluctuating between 66°F (18.9°C) and 43.2°F (6.2°C). In May, the average high-temperature slightly increases, from a mild 58.1°F (14.5°C) in April, to an enjoyable 66°F (18.9°C). Weather in May »

The first month of the summer, June, is a pleasant month in Wilsonville, Oregon, with average temperature fluctuating between 71.4°F (21.9°C) and 47.5°F (8.6°C). In June, the average high-temperature marginally rises, from a comfortable 66°F (18.9°C) in May, to an agreeable 71.4°F (21.9°C). Weather in June »

July is a warm summer month in Wilsonville, Oregon, with average temperature ranging between max 79.7°F (26.5°C) and min 51.4°F (10.8°C). In July, the average high-temperature marginally rises, from a pleasant 71.4°F (21.9°C) in June, to a moderately hot 79.7°F (26.5°C). Weather in July »

The last month of the summer, August, is another warm month in Wilsonville, Oregon, with temperature in the range of an average low of 54°F (12.2°C) and an average high of 81°F (27.2°C). The warmest month is August, with an average high-temperature of 81°F (27.2°C) and an average low-temperature of 54°F (12.2°C). In August, the average heat index is evaluated at 83.8°F (28.8°C). Weather in August »

The first month of the autumn, September, is also an agreeable month in Wilsonville, Oregon, with temperature in the range of an average high of 73.2°F (22.9°C) and an average low of 50.9°F (10.5°C). In September, the average high-temperature slightly decreases, from a warm 81°F (27.2°C) in August, to an agreeable 73.2°F (22.9°C). Weather in September »

October, like September, in Wilsonville, Oregon, is another comfortable autumn month, with average temperature varying between 45°F (7.2°C) and 61.3°F (16.3°C). In Wilsonville, the average high-temperature in October decreases, from a pleasant 73.2°F (22.9°C) in September, to a comfortable 61.3°F (16.3°C). Weather in October »

The last month of the autumn, November, is also a fresh month in Wilsonville, Oregon, with average temperature fluctuating between 50.7°F (10.4°C) and 39.6°F (4.2°C). In November, the average high-temperature decreases, from an enjoyable 61.3°F (16.3°C) in October, to a cool 50.7°F (10.4°C). Weather in November »

The first month of the winter, December, is also a frosty month in Wilsonville, Oregon, with temperature in the range of an average high of 44.2°F (6.8°C) and an average low of 34.3°F (1.3°C). The coldest month is December, with an average high-temperature of 44.2°F (6.8°C) and an average low-temperature of 34.3°F (1.3°C). Weather in December »

What are the most humid months in Wilsonville?

January, February and December, with an average relative humidity of 85%, are most humid months in Wilsonville, Oregon.

How much does it rain in Wilsonville?

In Wilsonville, Oregon, during the entire year, the rain falls for 173.8 days and collects up to 29.96" (761mm) of precipitation.

When does it snow in Wilsonville?

January through March, November and December are months with snowfall.

How much does it snow in Wilsonville?

Throughout the year, in Wilsonville, there are 6.1 snowfall days, and 3.66" (93mm) of snow is accumulated.

What is the month with the lowest UV index in Wilsonville?

Months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.

When does it snow the most in Wilsonville?

February is the month with the most snowfall in Wilsonville, Oregon. Snow falls for 2.1 days and accumulates 1.26" (32mm) of snow.

What is the month with the least sunshine in Wilsonville?

The month with the least sunshine is February, with an average of 4.2h of sunshine.

When it does not snow in Wilsonville?

April through October are months without snowfall.

When are the longest days in Wilsonville?

The month with the longest days in Wilsonville is June, with an average of 15.6h of daylight.

What is the driest month in Wilsonville?

Months with the least rainfall are July and August Rain falls for 4.4 days and accumulates 0.31" (8mm) of rain.

What is the month with the highest UV index in Wilsonville?

July is the month with the highest UV index in Wilsonville, with an average maximum UV index of 6.

What is the warmest month in Wilsonville?

August is the warmest month, with an average high-temperature of 81°F (27.2°C) and an average low-temperature of 54°F (12.2°C).

What is the least humid month in Wilsonville?

August is the least humid month in Wilsonville, with an average relative humidity of 65%.

What month has the most sunshine in Wilsonville?

With an average of 11.1h of sunshine, August has the most sunshine of the year in Wilsonville, Oregon.

What is the coldest month in Wilsonville?

With an average high-temperature of 44.2°F (6.8°C) and an average low-temperature of 34.3°F (1.3°C), December is the coldest month.

What is the rainiest month in Wilsonville?

December is the month with the most rainfall in Wilsonville. Rain falls for 19.4 days and accumulates 4.49" (114mm) of precipitation.

What is the month with the shortest days in Wilsonville?

With an average of 8.8h of daylight, December has the shortest days of the year.
Average temperature - Wilsonville, OR
Average humidity - Wilsonville, OR
Average rainfall - Wilsonville, OR

The wettest month (with the highest rainfall) is December (4.49").
Driest months (with the lowest rainfall) are July and August (0.31").

Average rainfall days - Wilsonville, OR

The month with the highest number of rainy days is March (20.9 days).
Months with the lowest number of rainy days are July and August (4.4 days).

Average snowfall - Wilsonville, OR

The month with the highest snowfall is February (1.26").
Months with the lowest snowfall are April, May, June, July, August, September and October (0").

Average snowfall days - Wilsonville, OR

The month with the highest number of snowfall days is February (2.1 days).
Months with the lowest number of snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight / Average sunshine - Wilsonville, OR
Average UV index - Wilsonville, OR