Climate and monthly weather forecast
Fairfield, WA

Share

Weather in January

January, the same as December, is an icy winter month in Fairfield, Washington, with an average temperature ranging between min 22.6°F (-5.2°C) and max 33.3°F (0.7°C). On the advent of January, Fairfield's average high-temperature exhibits a minor adjustment to a still wintry 33.3°F (0.7°C) from December's 32°F (0°C). Weather in January »

Weather in February

February, the last month of the winter in Fairfield, is another cold month, with an average temperature fluctuating between 24.1°F (-4.4°C) and 36.5°F (2.5°C). With the onset of February, the average high-temperature stands at a still icy 36.5°F (2.5°C), closely aligned with January's 33.3°F (0.7°C). Weather in February »

Weather in March

March, the first month of the spring in Fairfield, is a frosty month, with an average temperature ranging between min 29.7°F (-1.3°C) and max 45°F (7.2°C). Fairfield's March weather indicates a minor ascent in high-temperatures, adjusting from a wintry 36.5°F (2.5°C) in February to a chilly 45°F (7.2°C). Weather in March »

Weather in April

April is a fresh spring month in Fairfield, Washington, with an average temperature varying between 34.9°F (1.6°C) and 54.1°F (12.3°C). Fairfield sees an increase in average high-temperatures during April, moving from a frosty 45°F (7.2°C) in March to a fresh 54.1°F (12.3°C). Weather in April »

Weather in May

The last month of the spring, May, is an enjoyable month in Fairfield, Washington, with an average temperature varying between 41.2°F (5.1°C) and 65.1°F (18.4°C). The transition from April to May brings a temperature rise, with average high-temperatures increasing from a cool 54.1°F (12.3°C) to an enjoyable 65.1°F (18.4°C). Weather in May »

Weather in June

The first month of the summer, June, is an agreeable month in Fairfield, Washington, with an average temperature fluctuating between 71.1°F (21.7°C) and 46.6°F (8.1°C). June's onset witnesses a minor shift in the average high-temperature, moving from an enjoyable 65.1°F (18.4°C) in May to an agreeable 71.1°F (21.7°C). Weather in June »

Weather in July

July is a warm summer month in Fairfield, Washington, with temperature in the range of an average low of 54.1°F (12.3°C) and an average high of 82.9°F (28.3°C). Fairfield in July sees a temperature change, with average high-temperatures moving from a pleasant 71.1°F (21.7°C) in June to a moderately hot 82.9°F (28.3°C). Weather in July »

Weather in August

August, the last month of the summer in Fairfield, is another warm month, with an average temperature fluctuating between 55.9°F (13.3°C) and 83.3°F (28.5°C). The average temperatures reach their apex in August, averaging 83.3°F (28.5°C) at the high end and 55.9°F (13.3°C) at the low end. In August, the average heat index is appraised at 82.4°F (28°C). Weather in August »

Weather in September

September, the first month of the autumn in Fairfield, is also an agreeable month, with an average temperature fluctuating between 48.2°F (9°C) and 72.5°F (22.5°C). September implies a gentle temperature shift, with average high-temperatures reducing from August's moderately hot 83.3°F (28.5°C) to an agreeable 72.5°F (22.5°C). Weather in September »

Weather in October

October, the same as September, in Fairfield, Washington, is a moderate autumn month, with an average temperature fluctuating between 38.3°F (3.5°C) and 55.9°F (13.3°C). October signals a clear decrease in the average high-temperature, dropping from September's pleasant 72.5°F (22.5°C) to a mild 55.9°F (13.3°C). Weather in October »

Weather in November

November, the last month of the autumn in Fairfield, is another cold 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). The beginning of November marks a clear shift in the average high-temperature, receding from October's refreshing 55.9°F (13.3°C) to a wintry 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 temperature in the range of an average high of 32°F (0°C) and an average low of 21.9°F (-5.6°C). December stands out as Fairfield's coldest month, with an average high-temperature of 32°F (0°C) and a low-temperature of 21.9°F (-5.6°C). Weather in December »

Frequently asked questions

What is the most humid month?

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

What is the wettest month?

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

How much does it rain?

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

When does it snow?

January through May, September through December are months with snowfall.

When does it snow the most?

January is the month with the most snowfall. Snow falls for 13.3 days and accumulates 10.51" (267mm) of snow.

How many days does it snow?

In Fairfield, during the entire year, snow falls for 56.4 days and aggregates up to 37.4" (950mm) of snow.

What are the months with the least sunshine?

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

When is Daylight Saving Time (DST)?

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?

June through August are months without snowfall.

When are the longest days?

With an average of 15h and 54min of daylight, June has the longest days of the year.

What is the driest month?

The months with the least rainfall are July and August Rain falls for 5.1 days and accumulates 0.35" (9mm) of rain.

When is the highest UV index?

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

What time of the year is the hottest?

August, with its high-temperature average of 83.3°F (28.5°C) and a low-temperature average of 55.9°F (13.3°C), is the warmest month.

What is the least humid month?

The least humid month is August, with an average relative humidity of 43%.

What month has the most sunshine?

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

What are the coldest months?

Fairfield witnesses the coldest weather in December, with temperatures averaging a high of 32°F (0°C) and a low of 21.9°F (-5.6°C).

What is the month with the shortest days?

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

When is the lowest UV index?

With an average maximum UV index of 1, December is the month with the lowest UV index.

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).

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).

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).

Average humidity
Fairfield, WA

Average humidity - Fairfield, WA

The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is August (43%).

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").

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).

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").

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).

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).

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).

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).

Fairfield, Washington, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location