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

Monthly weather forecast and climate
Richland, OR

January, like December, is another subzero cold winter month in Richland, Oregon, with average temperature ranging between max 31.8°F (-0.1°C) and min 19.4°F (-7°C). In January, the average high-temperature is relatively the same as in December - a still subzero cold 31.8°F (-0.1°C). Weather in January »

The last month of the winter, February, is a cold month in Richland, Oregon, with average temperature fluctuating between 22.6°F (-5.2°C) and 34.3°F (1.3°C). In Richland, the average high-temperature is essentially the same as in January - a cold 34.3°F (1.3°C). Weather in February »

The first month of the spring, March, is still a cold month in Richland, Oregon, with average temperature ranging between min 27.3°F (-2.6°C) and max 41.9°F (5.5°C). In Richland, the average high-temperature in March slightly increases, from a wintry 34.3°F (1.3°C) in February, to a still cold 41.9°F (5.5°C). Weather in March »

April in Richland, Oregon, is a cool spring month, with average temperature ranging between max 50.5°F (10.3°C) and min 31.1°F (-0.5°C). In April, the average high-temperature slightly increases, from a wintry 41.9°F (5.5°C) in March, to a cool 50.5°F (10.3°C). Weather in April »

The last month of the spring, May, is an enjoyable month in Richland, Oregon, with average temperature fluctuating between 60.8°F (16°C) and 38.3°F (3.5°C). In May, the average high-temperature increases, from a cool 50.5°F (10.3°C) in April, to an enjoyable 60.8°F (16°C). Weather in May »

The first month of the summer, June, is a pleasant month in Richland, Oregon, with average temperature varying between 69.4°F (20.8°C) and 44.4°F (6.9°C). In Richland, the average high-temperature slightly increases, from a comfortable 60.8°F (16°C) in May, to a pleasant 69.4°F (20.8°C). Weather in June »

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 warmest month is July, with an average high-temperature of 81.7°F (27.6°C) and an average low-temperature of 52.3°F (11.3°C). The average heat index is appraised at 81.5°F (27.5°C). Weather in July »

The last month of the summer, August, is also a moderately hot month in Richland, Oregon, with average temperature fluctuating between 53.8°F (12.1°C) and 81.3°F (27.4°C). In Richland, the average high-temperature is relatively the same as in July - a still warm 81.3°F (27.4°C). Weather in August »

The first month of the autumn, September, is still a pleasant month in Richland, Oregon, 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). In Richland, Oregon, the average high-temperature decreases, from a warm 81.3°F (27.4°C) in August, to a pleasant 71.2°F (21.8°C). Weather in September »

October, like September, in Richland, Oregon, is a cool autumn month, with average temperature fluctuating between 55.2°F (12.9°C) and 36.5°F (2.5°C). In Richland, the average high-temperature in October declines considerably, from a pleasant 71.2°F (21.8°C) in September, to a cool 55.2°F (12.9°C). Weather in October »

November, the last month of the autumn, in Richland, is another cold month, with temperature in the range of an average low of 27°F (-2.8°C) and an average high of 40.5°F (4.7°C). In November, the average high-temperature significantly decreases, from a cool 55.2°F (12.9°C) in October, to a wintry 40.5°F (4.7°C). Weather in November »

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). The coldest month is December, with an average high-temperature of 30.7°F (-0.7°C) and an average low-temperature of 18.5°F (-7.5°C). Weather in December »

What is the most humid month in Richland?

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

How many days does it rain in Richland?

Throughout the year, in Richland, Oregon, there are 113.5 rainfall days, and 12.56" (319mm) of precipitation is accumulated.

When does it snow in Richland?

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

How much does it snow in Richland?

In Richland, during the entire year, snow falls for 65.1 days, and aggregates up to 38.9" (988mm) of snow.

What is the month with the least sunshine in Richland?

The month with the least sunshine is January, with an average of 4.8h of sunshine.

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

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

When it does not snow in Richland?

June through September are months without snowfall in Richland, Oregon.

When are the longest days in Richland?

The month with the longest days in Richland is June, with an average of 15.5h of daylight.

What is the warmest month in Richland?

July is the warmest month, with an average high-temperature of 81.7°F (27.6°C) and an average low-temperature of 52.3°F (11.3°C).

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

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

What is the least humid month in Richland?

With an average relative humidity of 40%, August is the least humid month.

What is the driest month in Richland?

August is the month with the least rainfall. Rain falls for 4.4 days and accumulates 0.31" (8mm) of precipitation.

What month has the most sunshine in Richland?

With an average of 12.1h of sunshine, August has the most sunshine of the year in Richland, Oregon.

What is the coldest month in Richland?

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.

What is the wettest month in Richland?

The month with the most rainfall 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 in Richland 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 in Richland, Oregon, with an average of 8.9h of daylight.
Average temperature - Richland, OR
Average rainfall - Richland, OR

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

Average rainfall days - Richland, OR

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

Average snowfall - Richland, OR
Average snowfall days - Richland, OR

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

Average daylight / Average sunshine - Richland, OR

The month with the longest days is June (Average daylight: 15.5h).
The month with shortest days is December (Average daylight: 8.9h).

The month with most sunshine is August (Average sunshine: 12.1h).
The month with least sunshine is January (Average sunshine: 4.8h).