Climate and monthly weather forecast
Walnut Grove, WA

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Weather in January

January, the same as December, in Walnut Grove, Washington, is a frosty winter month, with an average temperature ranging between max 45.1°F (7.3°C) and min 34.9°F (1.6°C). The onset of January marks an average high-temperature of a still frosty 45.1°F (7.3°C), hardly differing from December's 43.7°F (6.5°C). Weather in January »

Weather in February

February, the last month of the winter in Walnut Grove, is another chilly month, with an average temperature varying between 35.1°F (1.7°C) and 46.9°F (8.3°C). In February, the average high-temperature registers at a still chilly 46.9°F (8.3°C), nearly identical to January's 45.1°F (7.3°C). Weather in February »

Weather in March

The first month of the spring, March, is a cool month in Walnut Grove, Washington, with an average temperature ranging between min 37.6°F (3.1°C) and max 51.8°F (11°C). The advent of March brings an average high-temperature of a cool 51.8°F (11°C), exhibiting minor difference from the previous month. Weather in March »

Weather in April

April is a moderate spring month in Walnut Grove, Washington, with temperature in the range of an average low of 39.4°F (4.1°C) and an average high of 58.1°F (14.5°C). Walnut Grove's April weather indicates a minor increase in high-temperatures, edging from March's fresh 51.8°F (11°C) to a mild 58.1°F (14.5°C). Weather in April »

Weather in May

The last month of the spring, May, is a comfortable month in Walnut Grove, Washington, with temperature in the range of an average low of 43.7°F (6.5°C) and an average high of 66.6°F (19.2°C). As May arrives, Walnut Grove's weather shows a minor increase in high-temperatures, edging from April's moderate 58.1°F (14.5°C) to a still refreshing 66.6°F (19.2°C). Weather in May »

Weather in June

The first month of the summer, June, is an agreeable month in Walnut Grove, Washington, with an average temperature ranging between min 47.7°F (8.7°C) and max 72°F (22.2°C). June brings a slight rise in Walnut Grove's average high-temperature, moving from a refreshing 66.6°F (19.2°C) in May to a pleasant 72°F (22.2°C). Weather in June »

Weather in July

July in Walnut Grove, Washington, is a warm summer month, with an average temperature varying between 51.6°F (10.9°C) and 79.5°F (26.4°C). A subtle rise in the average high-temperature is observed during July, adjusting from a pleasant 72°F (22.2°C) in June to a moderately hot 79.5°F (26.4°C). Weather in July »

Weather in August

August, the last month of the summer in Walnut Grove, is also a moderately hot month, with an average temperature ranging between min 54°F (12.2°C) and max 80.6°F (27°C). August, recording an average high temperature of 80.6°F (27°C) and a low temperature of 54°F (12.2°C), is Walnut Grove's warmest month. In August, the heat index is calculated to be 82.4°F (28°C). Weather in August »

Weather in September

The first month of the autumn, September, is also an agreeable month in Walnut Grove, Washington, with an average temperature varying between 73°F (22.8°C) and 50.7°F (10.4°C). With the onset of September, Walnut Grove's average high-temperature slightly adjusts, moderately receding from August's warm 80.6°F (27°C) to an agreeable 73°F (22.8°C). Weather in September »

Weather in October

October, the same as September, is another enjoyable autumn month in Walnut Grove, Washington, with an average temperature varying between 60.8°F (16°C) and 45.1°F (7.3°C). The beginning of October marks a decrease in the average high-temperature, transitioning from a pleasant 73°F (22.8°C) in September to a comfortable 60.8°F (16°C). Weather in October »

Weather in November

The last month of the autumn, November, is also a fresh month in Walnut Grove, Washington, with an average temperature varying between 50.2°F (10.1°C) and 39.6°F (4.2°C). November brings a decrease in the average high-temperature, shifting from an enjoyable 60.8°F (16°C) in October to a fresh 50.2°F (10.1°C). Weather in November »

Weather in December

The first month of the winter, December, is also a frosty month in Walnut Grove, Washington, with temperature in the range of an average high of 43.7°F (6.5°C) and an average low of 34°F (1.1°C). December is the month when Walnut Grove sees the lowest average temperatures, with a high of 43.7°F (6.5°C) and a low of 34°F (1.1°C). Weather in December »
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Frequently asked questions

What are the most humid months in Walnut Grove?

January and February, with an average relative humidity of 84%, are most humid months in Walnut Grove.

How many days does it rain in Walnut Grove?

Throughout the year, in Walnut Grove, there are 177.1 rainfall days, and 34.29" (871mm) of precipitation is accumulated.

When does it snow in Walnut Grove?

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

How many days does it snow in Walnut Grove?

In Walnut Grove, Washington, during the entire year, snow falls for 5.9 days and aggregates up to 3.74" (95mm) of snow.

What is the month with the least sunshine in Walnut Grove?

The months with the least sunshine are January and February, with an average of 4.1h of sunshine.

What are the months with the lowest UV index in Walnut Grove?

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

When does it snow the most in Walnut Grove?

The month with the most snowfall is February, when snow falls for 2.1 days and typically aggregates up to 1.42" (36mm) of snow.

When is Daylight Saving Time (DST) in Walnut Grove?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Walnut Grove, Washington, 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 Walnut Grove?

In Walnut Grove, snow does not fall in April through October.

When are the longest days in Walnut Grove?

The month with the longest days in Walnut Grove, Washington, is June, with an average of 15h and 36min of daylight.

What is the driest month in Walnut Grove?

The month with the least rainfall in Walnut Grove is July, when the rain falls for 5.4 days and typically collects 0.35" (9mm) of precipitation.

What is the month with the highest UV index in Walnut Grove?

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

What is the warmest month in Walnut Grove?

In Walnut Grove, Washington, temperatures reach their average annual highs in August, measuring 80.6°F (27°C) and a minimum average of 54°F (12.2°C).

What is the least humid month in Walnut Grove?

With an average relative humidity of 65%, August is the least humid month.

What month has the most sunshine in Walnut Grove?

August has the most sunshine of the year, with an average of 11h of sunshine.

What part of the year is the coldest in Walnut Grove?

December, noted for its average high-temperature of 43.7°F (6.5°C) and an average low-temperature of 34°F (1.1°C), is considered the coldest month.

What is the wettest month in Walnut Grove?

The month with the most rainfall in Walnut Grove, Washington, is December, when the rain falls for 19.6 days and typically aggregates up to 5.08" (129mm) of precipitation.

What is the month with the shortest days in Walnut Grove?

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

Average temperature
Walnut Grove, WA

Average temperature - Walnut Grove, WA

The warmest month (with the highest average high temperature) is August (80.6°F).
The month with the lowest average high temperature is December (43.7°F).

The month with the highest average low temperature is August (54°F).
The coldest month (with the lowest average low temperature) is December (34°F).

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Average pressure
Walnut Grove, WA

Average pressure - Walnut Grove, WA

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).

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Average wind speed
Walnut Grove, WA

Average wind speed - Walnut Grove, WA

The windiest month (with the highest average wind speed) is January (5.5mph).
The calmest month (with the lowest average wind speed) is August (3.8mph).

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Average humidity
Walnut Grove, WA

Average humidity - Walnut Grove, WA

The months with the highest relative humidity are January and February (84%).
The month with the lowest relative humidity is August (65%).

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Average rainfall
Walnut Grove, WA

Average rainfall - Walnut Grove, WA

The wettest month (with the highest rainfall) is December (5.08").
The driest month (with the least rainfall) is July (0.35").

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Average rainfall days
Walnut Grove, WA

Average rainfall days - Walnut Grove, WA

The month with the highest number of rainy days is March (20.6 days).
The month with the least rainy days is August (4.9 days).

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Average snowfall
Walnut Grove, WA

Average snowfall - Walnut Grove, WA

The month with the highest snowfall is February (1.42").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days
Walnut Grove, WA

Average snowfall days - Walnut Grove, WA

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

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Average daylight / Average sunshine
Walnut Grove, WA

Average daylight / Average sunshine - Walnut Grove, WA

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: 11h and 0min).
The months with the least sunshine are January and February (Average sunshine: 4h and 6min).

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Average sunshine days
Walnut Grove, WA

Average sunshine days - Walnut Grove, WA

The month with the most sunshine days is July (24.1 days).
The month with the least sunshine days is February (7.9 days).

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Average UV index
Walnut Grove, WA

Average UV index - Walnut Grove, 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 2).

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Average visibility
Walnut Grove, WA

Average visibility - Walnut Grove, WA

The months with the highest visibility are July, August and September (6mi).
The months with the lowest visibility are January, February, March, April, May, June, October, November and December (5mi).

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Walnut Grove, Washington, USA

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