Climate and monthly weather forecast
Willamina, OR

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Weather in January

January, like December, is another chilly winter month in Willamina, Oregon, with temperature in the range of an average low of 34°F and an average high of 45.1°F. On the advent of January, Willamina's average high-temperature exhibits a minor adjustment to a still frosty 45.1°F from December's 43.5°F. Weather in January »

Weather in February

February, the last month of the winter in Willamina, is another chilly month, with an average temperature varying between 46.8°F and 34.2°F. The introduction of February notes a subtle temperature variation to a still frosty 46.8°F from January's 45.1°F. Weather in February »

Weather in March

The first month of the spring, March, is a fresh month in Willamina, Oregon, with temperature in the range of an average high of 50.5°F and an average low of 35.8°F. The advent of March reveals an average high-temperature of a cool 50.5°F, showing minimal difference from the prior month. Weather in March »

Weather in April

April in Willamina, Oregon, is a mild spring month, with an average temperature fluctuating between 38.1°F and 55.9°F. April's arrival brings a slight change in high-temperatures, adjusting from a fresh 50.5°F in March to a mild 55.9°F. Weather in April »

Weather in May

May, the last month of the spring in Willamina, is a comfortable month, with an average temperature fluctuating between 42.1°F and 64°F. May's arrival brings a slight change in high-temperatures, adjusting from a moderate 55.9°F in April to an enjoyable 64°F. Weather in May »

Weather in June

June, the first month of the summer in Willamina, is a pleasant month, with temperature in the range of an average high of 69.3°F and an average low of 46.2°F. June begins with an average high-temperature of a pleasant 69.3°F, reflecting close similarity to the preceding month. Weather in June »

Weather in July

July in Willamina, Oregon, is a moderately hot summer month, with an average temperature varying between 76.6°F and 50.5°F. Willamina in July denotes a subtle temperature transition, adjusting from an average high of a pleasant 69.3°F in June to a moderately hot 76.6°F. Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in Willamina, Oregon, with an average temperature fluctuating between 52.3°F and 78.4°F. In Willamina, August is the month with the highest recorded average temperatures, measuring a high of 78.4°F and a low of 52.3°F. Weather in August »

Weather in September

September, the first month of the autumn in Willamina, is also an agreeable month, with an average temperature fluctuating between 71.1°F and 48.7°F. September signifies a gentle decline in Willamina's average high-temperature, easing from a warm 78.4°F in August to an agreeable 71.1°F. Weather in September »

Weather in October

October, like September, is a moderate autumn month in Willamina, Oregon, with temperature in the range of an average high of 59.7°F and an average low of 43.7°F. October shows a mild decline in the average high-temperature, falling from September's agreeable 71.1°F to a refreshing 59.7°F. Weather in October »

Weather in November

The last month of the autumn, November, is also a frosty month in Willamina, Oregon, with an average temperature fluctuating between 49.5°F and 38.5°F. Willamina's progression into November involves a drop in the average high-temperature, receding from a moderate 59.7°F in October to a chilly 49.5°F. Weather in November »

Weather in December

December, the first month of the winter in Willamina, is still a chilly month, with an average temperature ranging between min 33.3°F and max 43.5°F. Temperature records mark December as the coldest month, with highs averaging 43.5°F and lows at 33.3°F. Weather in December »
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FAQ

How much does it rain in Willamina?

In Willamina, during the entire year, the rain falls for 156 days and collects up to 15.94" of precipitation.

When does it snow in Willamina?

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

How much does it snow in Willamina?

In Willamina, during the entire year, snow falls for 5.8 days and aggregates up to 1.77" of snow.

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

The months with the lowest UV index in Willamina, Oregon, are January, February, November and December, with an average maximum UV index of 2.

What are the most humid months in Willamina?

February and December, with an average relative humidity of 89%, are most humid months.

What is the snowiest month in Willamina?

The month with the most snowfall in Willamina, Oregon, is February, when snow falls for 2.3 days and typically aggregates up to 0.94" of snow.

What is the month with the least sunshine in Willamina?

With an average of 3.4h of sunshine, February has the least sunshine of the year in Willamina.

When is Daylight Saving Time (DST) in Willamina?

On Sunday, March 12. 2023, at 2:00 am, Daylight Saving Time starts in Willamina, and the time zone changes from PST to PDT. Daylight Saving Time ends Sunday, November 5. 2023, at 2:00 am, and the time zone reverts from PDT to PST.

When it does not snow in Willamina?

April through October are months without snowfall in Willamina, Oregon.

When are the longest days in Willamina?

With an average of 15h and 36min of daylight, June has the longest days of the year in Willamina.

What are the months with the highest UV index in Willamina?

The months with the highest UV index in Willamina, Oregon, are June and July, with an average maximum UV index of 5.

What is the driest month in Willamina?

July is the month with the least rainfall in Willamina. Rain falls for 5.7 days and accumulates 0.24" of precipitation.

What part of the year is the hottest in Willamina?

Willamina's warmest temperatures are experienced in August, with average high temperatures of 78.4°F and lows of 52.3°F.

What is the least humid month in Willamina?

With an average relative humidity of 71%, August is the least humid month.

What month has the most sunshine in Willamina?

With an average of 10.5h of sunshine, August has the most sunshine of the year.

What are the coldest months in Willamina?

December proves to be the coldest month in Willamina, recording an average maximum temperature of 43.5°F and a minimum temperature of 33.3°F.

What is the wettest month in Willamina?

The month with the most rainfall is December, when the rain falls for 17.1 days and typically aggregates up to 2.56" of precipitation.

What is the month with the shortest days in Willamina?

With an average of 8h and 48min of daylight, December has the shortest days of the year in Willamina.

Average temperature
Willamina, OR

Average temperature - Willamina, OR

The warmest month (with the highest average high temperature) is August (78.4°F).
The month with the lowest average high temperature is December (43.5°F).

The month with the highest average low temperature is August (52.3°F).
The coldest month (with the lowest average low temperature) is December (33.3°F).

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Average pressure
Willamina, OR

Average pressure - Willamina, OR

The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is September (30.01"Hg).

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Average wind speed
Willamina, OR

Average wind speed - Willamina, OR

The windiest month (with the highest average wind speed) is March (5mph).
The calmest month (with the lowest average wind speed) is August (3.8mph).

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Average humidity
Willamina, OR

Average humidity - Willamina, OR

The months with the highest relative humidity are February and December (89%).
The month with the lowest relative humidity is August (71%).

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Average rainfall
Willamina, OR

Average rainfall - Willamina, OR

The wettest month (with the highest rainfall) is December (2.56").
The driest month (with the least rainfall) is July (0.24").

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Average rainfall days
Willamina, OR

Average rainfall days - Willamina, OR

The month with the highest number of rainy days is March (18.9 days).
The month with the least rainy days is August (4.8 days).

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Average snowfall
Willamina, OR

Average snowfall - Willamina, OR

The month with the highest snowfall is February (0.94").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days
Willamina, OR

Average snowfall days - Willamina, OR

The month with the highest number of snowfall days is February (2.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight / Average sunshine
Willamina, OR

Average daylight / Average sunshine - Willamina, OR

The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).

The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 3h and 24min).

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Average sunshine days
Willamina, OR

Average sunshine days - Willamina, OR

The month with the most sunshine days is July (23.7 days).
The month with the least sunshine days is February (9.3 days).

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Average UV index
Willamina, OR

Average UV index - Willamina, OR

The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average visibility
Willamina, OR

Average visibility - Willamina, OR

The months with the highest visibility are June, July, August and September (5mi).
The months with the lowest visibility are January, February, March, April, May, October, November and December (4mi).

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Willamina, Oregon, USA

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