Climate and monthly weather forecast
Richland, OR

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Weather in January

January, like December, is another subzero cold winter month in Richland, Oregon, with an average temperature varying between 31.8°F (-0.1°C) and 19.4°F (-7°C). During January, Richland records an average high-temperature of a still subzero cold 31.8°F (-0.1°C), marking a slight divergence from December's 30.7°F (-0.7°C). Weather in January »

Weather in February

The last month of the winter, February, is a cold month in Richland, Oregon, with an average temperature ranging between min 22.6°F (-5.2°C) and max 34.3°F (1.3°C). Richland notes an average high-temperature of an icy 34.3°F (1.3°C) in February, hardly diverging from January. Weather in February »

Weather in March

March, the first month of the spring in Richland, is still a cold month, with an average temperature varying between 41.9°F (5.5°C) and 27.3°F (-2.6°C). As February gives way to March, the average high-temperature displays a slight ascent, adjusting from 34.3°F (1.3°C) to a still cold 41.9°F (5.5°C). Weather in March »

Weather in April

April is a fresh spring month in Richland, Oregon, with an average temperature ranging between min 31.1°F (-0.5°C) and max 50.5°F (10.3°C). With the beginning of April, Richland's average high-temperature sees a minor increase, transitioning from a cold 41.9°F (5.5°C) in March to a fresh 50.5°F (10.3°C). Weather in April »

Weather in May

May, the last month of the spring in Richland, is a comfortable month, with an average temperature fluctuating between 38.3°F (3.5°C) and 60.8°F (16°C). May's arrival is marked by an increase in the average high-temperature, moving from a fresh 50.5°F (10.3°C) in April to a comfortable 60.8°F (16°C). Weather in May »

Weather in June

June, the first month of the summer in Richland, is an agreeable month, with an average temperature ranging between max 69.4°F (20.8°C) and min 44.4°F (6.9°C). The transition from May to June brings a subtle temperature rise, with average high-temperatures increasing from a refreshing 60.8°F (16°C) to an agreeable 69.4°F (20.8°C). Weather in June »

Weather in July

July is a warm summer month in Richland, Oregon, with temperature in the range of an average low of 52.3°F (11.3°C) and an average high of 81.7°F (27.6°C). The temperatures reach their highest averages in July, with highs of 81.7°F (27.6°C) and lows of 52.3°F (11.3°C). The heat index in July is estimated at 80.6°F (27°C). Weather in July »

Weather in August

The last month of the summer, August, is another warm month in Richland, Oregon, with an average temperature ranging between min 53.8°F (12.1°C) and max 81.3°F (27.4°C). August's onset brings an average high-temperature of a still moderately hot 81.3°F (27.4°C), showing a minute difference from July's 81.7°F (27.6°C). Weather in August »

Weather in September

September, the first month of the autumn in Richland, is still a pleasant month, with temperature in the range of an average high of 71.2°F (21.8°C) and an average low of 47.3°F (8.5°C). As September arrives, Richland's weather displays a decrease in high-temperatures, transitioning from August's warm 81.3°F (27.4°C) to a pleasant 71.2°F (21.8°C). Weather in September »

Weather in October

October, the same as September, is another fresh autumn month in Richland, Oregon, with temperature in the range of an average high of 55.2°F (12.9°C) and an average low of 36.5°F (2.5°C). In October, the meteorological conditions markedly change with the average high-temperature descending from an agreeable 71.2°F (21.8°C) in September to a fresh 55.2°F (12.9°C). Weather in October »

Weather in November

November, the last month of the autumn in Richland, is also a wintry month, with an average temperature ranging between min 27°F (-2.8°C) and max 40.5°F (4.7°C). The beginning of November signals a clear reduction in the average high-temperature, falling from a cool 55.2°F (12.9°C) in October to a wintry 40.5°F (4.7°C). Weather in November »

Weather in December

December, the first month of the winter in Richland, is also a subzero cold month, with temperature in the range of an average low of 18.5°F (-7.5°C) and an average high of 30.7°F (-0.7°C). With an average high-temperature of 30.7°F (-0.7°C) and an average low-temperature of 18.5°F (-7.5°C), December is the coldest month. Weather in December »
Updated: Feb 13, 2024 | Published by: Weather U.S. | Resources

Frequently asked questions

What is the most humid month in Richland?

With an average relative humidity of 88%, January is the most humid month in Richland, Oregon.

How many days does it rain in Richland?

In Richland, Oregon, during the entire year, the rain falls for 113.5 days and collects up to 12.56" (319mm) of precipitation.

When does it snow in Richland?

Months with snowfall in Richland are January through May, October through December.

How much does it snow in Richland?

Throughout the year, there are 65.1 snowfall days, and 38.9" (988mm) of snow is accumulated.

What is the month with the least sunshine in Richland?

With an average of 4.8h of sunshine, January has the least sunshine of the year.

When is the lowest UV index in Richland?

With an average maximum UV index of 1, January is the month with the lowest UV index in Richland, Oregon.

When is Daylight Saving Time (DST) in Richland?

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.

When it does not snow in Richland?

June through September are months without snowfall.

When are the longest days in Richland?

The month with the longest days in Richland is June, with an average of 15h and 30min of daylight.

What month is the hottest in Richland?

Richland witnesses the warmest weather in July, with temperatures averaging a high of 81.7°F (27.6°C) and a low of 52.3°F (11.3°C).

When is the highest UV index in Richland?

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

What is the least humid month in Richland?

The least humid month is August, with an average relative humidity of 40%.

What is the driest month in Richland?

The month with the least rainfall in Richland, Oregon, is August, when the rain falls for 4.4 days and typically collects 0.31" (8mm) of precipitation.

What month has the most sunshine in Richland?

The month with the most sunshine in Richland, Oregon, is August, with an average of 12.1h of sunshine.

What is the coldest month in Richland?

Richland's coldest weather arrives in December, when temperatures average a high of 30.7°F (-0.7°C) and a low of 18.5°F (-7.5°C).

What is the wettest month in Richland?

The month with the most rainfall in Richland, Oregon, is December, when the rain falls for 8.6 days and typically aggregates up to 1.77" (45mm) of precipitation.

What is the snowiest month in Richland?

The month with the most snowfall is December, when snow falls for 14.7 days and typically aggregates up to 10.59" (269mm) of snow.

What is the month with the shortest days in Richland?

December has the shortest days of the year, with an average of 8h and 54min of daylight.

Average temperature
Richland, OR

Average temperature - Richland, OR

The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is December (30.7°F).

The month with the highest average low temperature is August (53.8°F).
The coldest month (with the lowest average low temperature) is December (18.5°F).

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Average pressure
Richland, OR

Average pressure - Richland, OR

The month with the highest atmospheric pressure is January (30.22"Hg).
The month with the lowest atmospheric pressure is August (29.92"Hg).

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Average wind speed
Richland, OR

Average wind speed - Richland, OR

The windiest month (with the highest average wind speed) is April (6.2mph).
The calmest months (with the lowest average wind speed) are September and October (5.4mph).

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Average rainfall
Richland, OR

Average rainfall - Richland, OR

The wettest month (with the highest rainfall) is December (1.77").
The driest month (with the least rainfall) is August (0.31").

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Average rainfall days
Richland, OR

Average rainfall days - Richland, OR

The month with the highest number of rainy days is March (15.6 days).
The month with the least rainy days is August (4.4 days).

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Average snowfall
Richland, OR

Average snowfall - Richland, OR

The month with the highest snowfall is December (10.59").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days
Richland, OR

Average snowfall days - Richland, OR

The month with the highest number of snowfall days is December (14.7 days).
The months with the least snowfall days are June, July and August (0 days).

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Average daylight / Average sunshine
Richland, OR

Average daylight / Average sunshine - Richland, OR

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

The month with the most sunshine is August (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).

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Average sunshine days
Richland, OR

Average sunshine days - Richland, OR

The month with the most sunshine days is July (22.7 days).
The months with the least sunshine days are February and March (11.3 days).

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Average visibility
Richland, OR

Average visibility - Richland, OR

The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (4mi).

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Richland, Oregon, USA

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