Climate and monthly weather forecast
Fairfield, WA

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Weather in January

January, like December, in Fairfield, Washington, is an icy winter month, with an average temperature varying between 22.6°F (-5.2°C) and 33.3°F (0.7°C). In January, Fairfield experiences a minor shift in meteorological conditions with average high-temperatures marked at a still icy 33.3°F (0.7°C), closely mirroring the climate in December. Weather in January »

Weather in February

The last month of the winter, February, is another cold month in Fairfield, Washington, with an average temperature varying between 36.5°F (2.5°C) and 24.1°F (-4.4°C). The advent of February brings an average high-temperature of a still icy 36.5°F (2.5°C), exhibiting minor difference from the previous month. Weather in February »

Weather in March

The first month of the spring, March, is a chilly month in Fairfield, Washington, with temperature in the range of an average high of 45°F (7.2°C) and an average low of 29.7°F (-1.3°C). A soft shift in the average high-temperature is noticeable in March, transitioning from a cold 36.5°F (2.5°C) in February to a frosty 45°F (7.2°C). Weather in March »

Weather in April

April is a cool spring month in Fairfield, Washington, with temperature in the range of an average high of 54.1°F (12.3°C) and an average low of 34.9°F (1.6°C). The average high-temperature increases in April, moving from a chilly 45°F (7.2°C) in March to a cool 54.1°F (12.3°C). Weather in April »

Weather in May

May, the last month of the spring in Fairfield, is a refreshing month, with an average temperature fluctuating between 41.2°F (5.1°C) and 65.1°F (18.4°C). With the transition into May, Fairfield experiences an increase in average high-temperatures, moving up from a cool 54.1°F (12.3°C) in April to a comfortable 65.1°F (18.4°C). Weather in May »

Weather in June

June, the first month of the summer in Fairfield, is a pleasant month, with an average temperature varying between 46.6°F (8.1°C) and 71.1°F (21.7°C). Fairfield's transition into June brings a slight rise in the average high-temperature, moving from a refreshing 65.1°F (18.4°C) in May to a pleasant 71.1°F (21.7°C). Weather in June »

Weather in July

July is a warm summer month in Fairfield, Washington, with an average temperature ranging between min 54.1°F (12.3°C) and max 82.9°F (28.3°C). The commencement of July sees a shift in the average high-temperature, moving from an agreeable 71.1°F (21.7°C) in June to a warm 82.9°F (28.3°C). Weather in July »

Weather in August

August, the last month of the summer in Fairfield, is also a moderately hot month, with an average temperature fluctuating between 83.3°F (28.5°C) and 55.9°F (13.3°C). August stands out as Fairfield's warmest month, with an average high-temperature of 83.3°F (28.5°C) and a low-temperature of 55.9°F (13.3°C). August's mean heat index is evaluated at 82.4°F (28°C). Weather in August »

Weather in September

The first month of the autumn, September, is also an agreeable month in Fairfield, Washington, with temperature in the range of an average low of 48.2°F (9°C) and an average high of 72.5°F (22.5°C). The beginning of September involves a decrease in the average high-temperature, transitioning from a moderately hot 83.3°F (28.5°C) in August to an agreeable 72.5°F (22.5°C). Weather in September »

Weather in October

October, like September, is a moderate autumn month in Fairfield, Washington, with an average temperature ranging between min 38.3°F (3.5°C) and max 55.9°F (13.3°C). A shift in Fairfield's weather is noticeable as September turns into October, with the average high temperature decreasing from a pleasant 72.5°F (22.5°C) to a moderate 55.9°F (13.3°C). Weather in October »

Weather in November

November, the last month of the autumn in Fairfield, is also a wintry month, with temperature in the range of an average low of 29.3°F (-1.5°C) and an average high of 41°F (5°C). November's onset is marked by a clear temperature decrease, falling from a mild 55.9°F (13.3°C) in October to a cold 41°F (5°C). Weather in November »

Weather in December

The first month of the winter, December, is still a cold month in Fairfield, Washington, with an average temperature ranging between min 21.9°F (-5.6°C) and max 32°F (0°C). With average high and low temperatures of 32°F (0°C) and 21.9°F (-5.6°C) respectively, December is Fairfield's coldest month. Weather in December »
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Frequently asked questions

What is the most humid month in Fairfield?

January is the most humid month, with an average relative humidity of 91%.

What is the rainiest month in Fairfield?

The month with the most rainfall in Fairfield is January, when the rain falls for 9.7 days and typically aggregates up to 2.28" (58mm) of precipitation.

How many days does it rain in Fairfield?

Throughout the year, in Fairfield, there are 125.4 rainfall days, and 17.28" (439mm) of precipitation is accumulated.

When does it snow in Fairfield?

January through May, September through December are months with snowfall in Fairfield, Washington.

When does it snow the most in Fairfield?

The month with the most snowfall in Fairfield, Washington, is January, when snow falls for 13.3 days and typically aggregates up to 10.51" (267mm) of snow.

How much does it snow in Fairfield?

Throughout the year, there are 56.4 snowfall days, and 37.4" (950mm) of snow is accumulated.

What are the months with the least sunshine in Fairfield?

The months with the least sunshine in Fairfield are January and December, with an average of 3.8h of sunshine.

When is Daylight Saving Time (DST) in Fairfield?

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 Fairfield?

In Fairfield, Washington, snow does not fall in June through August.

When are the longest days in Fairfield?

The month with the longest days in Fairfield is June, with an average of 15h and 54min of daylight.

What is the driest month in Fairfield?

July and August are months with the least rain when the rain falls for 5.1 days and typically aggregates up to 0.35" (9mm) of rain.

When is the highest UV index in Fairfield?

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

What is the warmest month in Fairfield?

Fairfield experiences its highest temperatures in August, with an average peak of 83.3°F (28.5°C) and a low of 55.9°F (13.3°C).

What is the least humid month in Fairfield?

With an average relative humidity of 43%, August is the least humid month in Fairfield.

What month has the most sunshine in Fairfield?

August has the most sunshine of the year in Fairfield, Washington, with an average of 12h of sunshine.

What are the coldest months in Fairfield?

December is the coldest month of the year, registering average temperatures as high as 32°F (0°C) and as low as 21.9°F (-5.6°C).

What is the month with the shortest days in Fairfield?

With an average of 8h and 30min of daylight, December has the shortest days of the year in Fairfield, Washington.

When is the lowest UV index in Fairfield?

The month with the lowest UV index in Fairfield, Washington, is December, with an average maximum UV index of 1.

Average temperature
Fairfield, WA

Average temperature - Fairfield, WA

The warmest month (with the highest average high temperature) is August (83.3°F).
The month with the lowest average high temperature is December (32°F).

The month with the highest average low temperature is August (55.9°F).
The coldest month (with the lowest average low temperature) is December (21.9°F).

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Average pressure
Fairfield, WA

Average pressure - Fairfield, WA

The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).

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Average wind speed
Fairfield, WA

Average wind speed - Fairfield, WA

The windiest month (with the highest average wind speed) is April (6.1mph).
The calmest month (with the lowest average wind speed) is December (4.7mph).

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Average rainfall
Fairfield, WA

Average rainfall - Fairfield, WA

The wettest month (with the highest rainfall) is January (2.28").
The driest months (with the least rainfall) are July and August (0.35").

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Average rainfall days
Fairfield, WA

Average rainfall days - Fairfield, WA

The month with the highest number of rainy days is March (16 days).
The month with the least rainy days is July (5.1 days).

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Average snowfall
Fairfield, WA

Average snowfall - Fairfield, WA

The month with the highest snowfall is January (10.51").
The months with the least snowfall are June, July and August (0").

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Average snowfall days
Fairfield, WA

Average snowfall days - Fairfield, WA

The month with the highest number of snowfall days is December (13.9 days).
The months with the least snowfall days are June, July and August (0 days).

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Average daylight / Average sunshine
Fairfield, WA

Average daylight / Average sunshine - Fairfield, WA

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

The month with the most sunshine is August (Average sunshine: 12h and 0min).
The months with the least sunshine are January and December (Average sunshine: 3h and 48min).

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Average sunshine days
Fairfield, WA

Average sunshine days - Fairfield, WA

The month with the most sunshine days is July (24.3 days).
The month with the least sunshine days is March (10.3 days).

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Average visibility
Fairfield, WA

Average visibility - Fairfield, WA

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

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Fairfield, Washington, USA

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