Climate and monthly weather forecast
Oroville, WA

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Weather in January

January, like December, is a freezing cold winter month in Oroville, Washington, with an average temperature varying between 28.2°F (-2.1°C) and 14.4°F (-9.8°C). Oroville's January average high-temperature settles at a still subzero cold 28.2°F (-2.1°C), showing a near match with the preceding month. Weather in January »

Weather in February

February, the last month of the winter in Oroville, is also a subzero cold month, with an average temperature varying between 29.8°F (-1.2°C) and 13.8°F (-10.1°C). In February, Oroville notes an average high-temperature of a still freezing cold 29.8°F (-1.2°C), hardly different from the preceding month. Weather in February »

Weather in March

March, the first month of the spring in Oroville, is an icy month, with an average temperature ranging between min 22.5°F (-5.3°C) and max 38.3°F (3.5°C). Oroville experiences a minor temperature shift with the start of March, with average high-temperatures moving from a subzero cold 29.8°F (-1.2°C) in February to a cold 38.3°F (3.5°C). Weather in March »

Weather in April

April in Oroville, Washington, is a chilly spring month, with an average temperature fluctuating between 49.6°F (9.8°C) and 29.7°F (-1.3°C). Oroville's April weather brings a rise in high-temperatures, moving from a wintry 38.3°F (3.5°C) in March to a frosty 49.6°F (9.8°C). Weather in April »

Weather in May

The last month of the spring, May, is a refreshing month in Oroville, Washington, with temperature in the range of an average low of 37.8°F (3.2°C) and an average high of 62.6°F (17°C). The start of May signals an increase in the average high-temperature, moving from a frosty 49.6°F (9.8°C) in April to a comfortable 62.6°F (17°C). Weather in May »

Weather in June

The first month of the summer, June, is a pleasant month in Oroville, Washington, with an average temperature ranging between min 42.4°F (5.8°C) and max 68.5°F (20.3°C). The onset of June brings a minor temperature shift, with the average high-temperature moving from a comfortable 62.6°F (17°C) in May to a pleasant 68.5°F (20.3°C). Weather in June »

Weather in July

July is a moderately hot summer month in Oroville, Washington, with an average temperature fluctuating between 48.6°F (9.2°C) and 78.4°F (25.8°C). As Oroville welcomes July, the average high-temperature sees a rise, transitioning from a pleasant 68.5°F (20.3°C) in June to a moderately hot 78.4°F (25.8°C). Weather in July »

Weather in August

The last month of the summer, August, is another warm month in Oroville, Washington, with an average temperature varying between 49.5°F (9.7°C) and 79.2°F (26.2°C). Oroville's temperatures peak on average in August, reaching 79.2°F (26.2°C) at their highest and 49.5°F (9.7°C) at their lowest. Weather in August »

Weather in September

The first month of the autumn, September, is still a comfortable month in Oroville, Washington, with temperature in the range of an average high of 67.8°F (19.9°C) and an average low of 42.8°F (6°C). Welcoming September, Oroville observes a shift in the average high-temperature, falling from August's moderately hot 79.2°F (26.2°C) to a refreshing 67.8°F (19.9°C). Weather in September »

Weather in October

October, like September, in Oroville, Washington, is another fresh autumn month, with an average temperature fluctuating between 50.9°F (10.5°C) and 32.9°F (0.5°C). Oroville sees a considerable decrease in average high-temperatures during October, falling from a comfortable 67.8°F (19.9°C) in September to a cool 50.9°F (10.5°C). Weather in October »

Weather in November

November, the last month of the autumn in Oroville, is another cold month, with an average temperature fluctuating between 36.5°F (2.5°C) and 23.7°F (-4.6°C). November brings with it a considerable temperature decrease, with average high-temperatures dropping from October's fresh 50.9°F (10.5°C) to an icy 36.5°F (2.5°C). Weather in November »

Weather in December

The first month of the winter, December, is also a subzero cold month in Oroville, Washington, with an average temperature ranging between min 13.1°F (-10.5°C) and max 27°F (-2.8°C). Oroville's December weather, marked by an average high temperature of 27°F (-2.8°C) and an average low temperature of 13.1°F (-10.5°C), is the coldest in the year. Weather in December »
Updated: Jul 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the most humid month?

The most humid month is January, with an average relative humidity of 94%.

How much does it rain?

In Oroville, during the entire year, the rain falls for 112.2 days and collects up to 14.69" (373mm) of precipitation.

When does it snow?

January through May, September through December are months with snowfall.

How much does it snow?

Throughout the year, there are 89.6 snowfall days, and 47.44" (1205mm) of snow is accumulated.

What is the month with the least sunshine?

The month with the least sunshine is January, with an average of 3.9h of sunshine.

What is the month with the lowest UV index?

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 1.

When is Daylight Saving Time (DST)?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from PST to PDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from PDT to PST.

What is the wettest month?

May is the month with the most rainfall. Rain falls for 13.8 days and accumulates 1.97" (50mm) of precipitation.

When it does not snow?

In Oroville, snow does not fall in June through August.

When are the longest days?

The month with the longest days is June, with an average of 16h and 6min of daylight.

When is the highest UV index?

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

What part of the year is the hottest?

August is the warmest month, with the temperature often reaching an average high of 79.2°F (26.2°C) and an average low of 49.5°F (9.7°C).

What is the least humid month?

August is the least humid month, with an average relative humidity of 49%.

What is the driest month?

August is the month with the least rainfall. Rain falls for 5.8 days and accumulates 0.47" (12mm) of precipitation.

What month has the most sunshine?

With an average of 12h of sunshine, August has the most sunshine of the year.

What are the coldest months in Oroville?

December, known for its average high temperature of 27°F (-2.8°C) and an average low temperature of 13.1°F (-10.5°C), is the coldest month.

What is the snowiest month?

December is the month with the most snowfall. Snow falls for 17.3 days and accumulates 9.76" (248mm) of snow.

What is the month with the shortest days?

With an average of 8h and 18min of daylight, December has the shortest days of the year.

Average temperature
Oroville, WA

Average temperature - Oroville, WA

The warmest month (with the highest average high temperature) is August (79.2°F).
The month with the lowest average high temperature is December (27°F).

The month with the highest average low temperature is August (49.5°F).
The coldest month (with the lowest average low temperature) is December (13.1°F).

Average pressure
Oroville, WA

Average pressure - Oroville, WA

The month with the highest atmospheric pressure is January (30.18"Hg).
The months with the lowest atmospheric pressure are June and August (29.93"Hg).

Average wind speed
Oroville, WA

Average wind speed - Oroville, WA

The windiest month (with the highest average wind speed) is April (4.5mph).
The calmest months (with the lowest average wind speed) are January, February and December (3.7mph).

Average humidity
Oroville, WA

Average humidity - Oroville, WA

The month with the highest relative humidity is January (94%).
The month with the lowest relative humidity is August (49%).

Average rainfall
Oroville, WA

Average rainfall - Oroville, WA

The wettest month (with the highest rainfall) is May (1.97").
The driest month (with the least rainfall) is August (0.47").

Average rainfall days
Oroville, WA

Average rainfall days - Oroville, WA

The month with the highest number of rainy days is May (13.8 days).
The month with the least rainy days is December (5.7 days).

Average snowfall
Oroville, WA

Average snowfall - Oroville, WA

The month with the highest snowfall is December (9.76").
The months with the least snowfall are June, July and August (0").

Average snowfall days
Oroville, WA

Average snowfall days - Oroville, WA

The month with the highest number of snowfall days is January (18.3 days).
The months with the least snowfall days are June, July and August (0 days).

Average daylight / Average sunshine
Oroville, WA

Average daylight / Average sunshine - Oroville, WA

The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 18min).

The month with the most sunshine is August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

Average sunshine days
Oroville, WA

Average sunshine days - Oroville, WA

The month with the most sunshine days is August (22.4 days).
The month with the least sunshine days is March (10.8 days).

Average UV index
Oroville, WA

Average UV index - Oroville, WA

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).

Average visibility
Oroville, WA

Average visibility - Oroville, WA

The months with the highest visibility are April, May, June, July, August and September (6mi).
The month with the lowest visibility is January (2mi).

Oroville, Washington, USA

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