Climate and monthly weather forecast
Napavine, WA

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Weather in January

January is a chilly winter month in Napavine, Washington, with an average temperature fluctuating between 33.8°F (1°C) and 44.6°F (7°C). The arrival of January is marked by an average high-temperature of a chilly 44.6°F (7°C), bearing a close resemblance to December. Weather in January »

Weather in February

The last month of the winter, February, is another chilly month in Napavine, Washington, with temperature in the range of an average high of 46.4°F (8°C) and an average low of 33.4°F (0.8°C). The introduction of February notes a subtle temperature variation to a still chilly 46.4°F (8°C) from January's 44.6°F (7°C). Weather in February »

Weather in March

The first month of the spring, March, is a fresh month in Napavine, Washington, with an average temperature fluctuating between 35.1°F (1.7°C) and 50.5°F (10.3°C). Napavine's average high-temperature in March sits at a cool 50.5°F (10.3°C), showing little difference from the previous month. Weather in March »

Weather in April

April in Napavine, Washington, is a mild spring month, with an average temperature fluctuating between 56.1°F (13.4°C) and 36.9°F (2.7°C). April's arrival signals a modest temperature shift, moving from a fresh 50.5°F (10.3°C) in March to a refreshing 56.1°F (13.4°C). Weather in April »

Weather in May

The last month of the spring, May, is a comfortable month in Napavine, Washington, with an average temperature varying between 64.8°F (18.2°C) and 40.8°F (4.9°C). In May, the average high-temperature marginally rises from a mild 56.1°F (13.4°C) in April to a comfortable 64.8°F (18.2°C). Weather in May »

Weather in June

The first month of the summer, June, is an agreeable month in Napavine, Washington, with an average temperature varying between 69.4°F (20.8°C) and 44.8°F (7.1°C). As Napavine steps into June, the average high-temperature holds at a pleasant 69.4°F (20.8°C), hinting at a minor fluctuation from the prior month. Weather in June »

Weather in July

July in Napavine, Washington, is a moderately hot summer month, with an average temperature ranging between max 76.6°F (24.8°C) and min 48.4°F (9.1°C). Napavine, Washington, in July denotes a subtle temperature transition, adjusting from an average high of an agreeable 69.4°F (20.8°C) in June to a warm 76.6°F (24.8°C). Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in Napavine, Washington, with an average temperature varying between 50°F (10°C) and 77.5°F (25.3°C). August is Napavine's warmest month, registering average high temperatures of 77.5°F (25.3°C) and lows of 50°F (10°C). Weather in August »

Weather in September

September, the first month of the autumn in Napavine, is still a pleasant month, with temperature in the range of an average high of 70.3°F (21.3°C) and an average low of 46.9°F (8.3°C). The arrival of September is marked by a minor reduction in average high-temperature, sliding from a warm 77.5°F (25.3°C) in August to an agreeable 70.3°F (21.3°C). Weather in September »

Weather in October

October, like September, is another mild autumn month in Napavine, Washington, with an average temperature ranging between min 42.1°F (5.6°C) and max 58.8°F (14.9°C). Napavine in October demonstrates a small temperature transition, adjusting from an average high of a pleasant 70.3°F (21.3°C) in September to a mild 58.8°F (14.9°C). Weather in October »

Weather in November

November, the last month of the autumn in Napavine, is also a frosty month, with an average temperature ranging between max 48.4°F (9.1°C) and min 37.9°F (3.3°C). The transition into November involves a decrease in the average high-temperature, falling from a moderate 58.8°F (14.9°C) in October to a frosty 48.4°F (9.1°C). Weather in November »

Weather in December

The first month of the winter, December, is also a wintry month in Napavine, Washington, with an average temperature fluctuating between 42.6°F (5.9°C) and 33.1°F (0.6°C). Napavine's coldest temperatures are experienced in December, with average high temperatures of 42.6°F (5.9°C) and lows of 33.1°F (0.6°C). Weather in December »
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Frequently asked questions

What is the most humid month in Napavine?

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

What is the wettest month in Napavine?

January is the month with the most rainfall. Rain falls for 18.6 days and accumulates 5.51" (140mm) of precipitation.

How many days does it rain in Napavine?

In Napavine, during the entire year, the rain falls for 185.5 days and collects up to 36.1" (917mm) of precipitation.

When does it snow in Napavine?

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

How many days does it snow in Napavine?

In Napavine, during the entire year, snow falls for 9 days and aggregates up to 5.59" (142mm) of snow.

What are the months with the lowest UV index in Napavine?

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

What is the snowiest month in Napavine?

February is the month with the most snowfall. Snow falls for 3.5 days and accumulates 1.93" (49mm) of snow.

When is Daylight Saving Time (DST) in Napavine?

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

April through October are months without snowfall.

When are the longest days in Napavine?

With an average of 15h and 48min of daylight, June has the longest days of the year in Napavine.

What is the least humid month in Napavine?

The least humid month in Napavine is July, with an average relative humidity of 73%.

What is the driest month in Napavine?

The month with the least rainfall in Napavine, Washington, is July, when the rain falls for 6.5 days and typically collects 0.47" (12mm) of precipitation.

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

With an average maximum UV index of 5, July is the month with the highest UV index.

What is the warmest month in Napavine?

In Napavine, Washington, the average highest temperatures are observed in August, with a high of 77.5°F (25.3°C) and a low of 50°F (10°C).

What month has the most sunshine in Napavine?

The month with the most sunshine in Napavine, Washington, is August, with an average of 10.2h of sunshine.

What time of the year is the coldest in Napavine?

December, with an average high of 42.6°F (5.9°C) and a low of 33.1°F (0.6°C), signifies the coldest month of the year in Napavine.

What is the month with the shortest days in Napavine?

The month with the shortest days in Napavine, Washington, is December, with an average of 8h and 36min of daylight.

What is the month with the least sunshine in Napavine?

With an average of 3.5h of sunshine, December has the least sunshine of the year in Napavine.

Average temperature
Napavine, WA

Average temperature - Napavine, WA

The warmest month (with the highest average high temperature) is August (77.5°F).
The month with the lowest average high temperature is December (42.6°F).

The month with the highest average low temperature is August (50°F).
The coldest month (with the lowest average low temperature) is December (33.1°F).

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Average pressure
Napavine, WA

Average pressure - Napavine, WA

The month with the highest atmospheric pressure is January (30.09"Hg).
The months with the lowest atmospheric pressure are March, August and September (30.02"Hg).

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Average wind speed
Napavine, WA

Average wind speed - Napavine, WA

The windiest months (with the highest average wind speed) are January, March and November (4.5mph).
The calmest month (with the lowest average wind speed) is September (3.6mph).

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Average humidity
Napavine, WA

Average humidity - Napavine, WA

The months with the highest relative humidity are January, February, November and December (89%).
The month with the lowest relative humidity is July (73%).

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Average rainfall
Napavine, WA

Average rainfall - Napavine, WA

The wettest month (with the highest rainfall) is January (5.51").
The driest month (with the least rainfall) is July (0.47").

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Average rainfall days
Napavine, WA

Average rainfall days - Napavine, WA

The month with the highest number of rainy days is March (21.5 days).
The month with the least rainy days is August (6.4 days).

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Average snowfall
Napavine, WA

Average snowfall - Napavine, WA

The month with the highest snowfall is February (1.93").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days
Napavine, WA

Average snowfall days - Napavine, WA

The month with the highest number of snowfall days is February (3.5 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
Napavine, WA

Average daylight / Average sunshine - Napavine, WA

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

The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 3h and 30min).

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Average sunshine days
Napavine, WA

Average sunshine days - Napavine, WA

The months with the most sunshine days are July and August (20.8 days).
The month with the least sunshine days is February (7.6 days).

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Average UV index
Napavine, WA

Average UV index - Napavine, WA

The month with the highest UV index is 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
Napavine, WA

Average visibility - Napavine, WA

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

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Napavine, Washington, USA

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