Climate and monthly weather forecast
Fairfield, MT

Share

Weather in January

January, like December, is a freezing cold winter month in Fairfield, Montana, with an average temperature fluctuating between 30.4°F (-0.9°C) and 18°F (-7.8°C). The introduction of January sees an average high-temperature of a still freezing cold 30.4°F (-0.9°C), hardly deviating from December. Weather in January »

Weather in February

The last month of the winter, February, is also a subzero cold month in Fairfield, Montana, with temperature in the range of an average low of 16.3°F (-8.7°C) and an average high of 30.2°F (-1°C). February's arrival registers an average high-temperature of a still subzero cold 30.2°F (-1°C), closely aligning with the temperature of the previous month. Weather in February »

Weather in March

March, the first month of the spring in Fairfield, is an icy month, with temperature in the range of an average high of 40.3°F (4.6°C) and an average low of 25.5°F (-3.6°C). Observing a rise in March, the average high-temperature goes from February's subzero cold 30.2°F (-1°C) to an icy 40.3°F (4.6°C). Weather in March »

Weather in April

April is a chilly spring month in Fairfield, Montana, with an average temperature ranging between max 49.6°F (9.8°C) and min 33.6°F (0.9°C). April indicates a change in the average high-temperature, moving up from a cold 40.3°F (4.6°C) in March to a chilly 49.6°F (9.8°C). Weather in April »

Weather in May

The last month of the spring, May, is a moderate month in Fairfield, Montana, with temperature in the range of an average high of 60.4°F (15.8°C) and an average low of 41.7°F (5.4°C). An upsurge in temperatures occurs as April gives way to May, with average highs shifting from a chilly 49.6°F (9.8°C) to a moderate 60.4°F (15.8°C). Weather in May »

Weather in June

The first month of the summer, June, is an agreeable month in Fairfield, Montana, with an average temperature fluctuating between 48°F (8.9°C) and 69.1°F (20.6°C). The onset of June marks a slight increase in the average high-temperature, moving from a moderate 60.4°F (15.8°C) in May to a pleasant 69.1°F (20.6°C). Weather in June »

Weather in July

July is a moderately hot summer month in Fairfield, Montana, with an average temperature varying between 79.7°F (26.5°C) and 54.5°F (12.5°C). During the warmest month, July, temperatures average a high of 79.7°F (26.5°C) and a low of 54.5°F (12.5°C). Weather in July »

Weather in August

August, the last month of the summer in Fairfield, is another warm month, with temperature in the range of an average low of 55.9°F (13.3°C) and an average high of 79°F (26.1°C). The arrival of August sees an average high-temperature of a still warm 79°F (26.1°C), hardly diverging from July's 79.7°F (26.5°C). Weather in August »

Weather in September

September, the first month of the autumn in Fairfield, is still a pleasant month, with temperature in the range of an average high of 68.2°F (20.1°C) and an average low of 48.6°F (9.2°C). Onset of September comes with a temperature decline, the average high falling from a moderately hot 79°F (26.1°C) in August to an agreeable 68.2°F (20.1°C). Weather in September »

Weather in October

October, like September, in Fairfield, Montana, is another fresh autumn month, with an average temperature varying between 35.8°F (2.1°C) and 52.3°F (11.3°C). October's arrival witnesses a distinct drop in the average high-temperature, receding from September's pleasant 68.2°F (20.1°C) to a cool 52.3°F (11.3°C). Weather in October »

Weather in November

The last month of the autumn, November, is another cold month in Fairfield, Montana, with temperature in the range of an average high of 39.2°F (4°C) and an average low of 25.3°F (-3.7°C). A shift in Fairfield's weather is observed as October turns into November, with the average high temperature reducing from a cool 52.3°F (11.3°C) to a wintry 39.2°F (4°C). Weather in November »

Weather in December

December, the first month of the winter in Fairfield, is still a freezing cold month, with an average temperature fluctuating between 16.2°F (-8.8°C) and 28.8°F (-1.8°C). The month of December sees the lowest average temperatures, reaching 28.8°F (-1.8°C) at the peak and 16.2°F (-8.8°C) at the low. Weather in December »
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the most humid month in Fairfield?

The most humid month in Fairfield is January, with an average relative humidity of 76%.

How many days does it rain in Fairfield?

Throughout the year, in Fairfield, Montana, there are 73.3 rainfall days, and 9.17" (233mm) of precipitation is accumulated.

When does it snow in Fairfield?

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

How many days does it snow in Fairfield?

Throughout the year, in Fairfield, there are 50.3 snowfall days, and 21.26" (540mm) of snow is accumulated.

When is the lowest UV index in Fairfield?

January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index.

When does it snow the most in Fairfield?

February is the month with the most snowfall in Fairfield, Montana. Snow falls for 11.3 days and accumulates 4.17" (106mm) of snow.

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 MST to MDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from MDT to MST.

What is the wettest month in Fairfield?

June is the month with the most rainfall in Fairfield, Montana. Rain falls for 11.1 days and accumulates 1.93" (49mm) of precipitation.

When it does not snow in Fairfield?

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

When are the longest days in Fairfield?

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

What are the warmest months in Fairfield?

Fairfield, Montana, experiences its average highest temperatures in July, reaching a peak of 79.7°F (26.5°C) and a minimum of 54.5°F (12.5°C).

What month has the most sunshine in Fairfield?

With an average of 12.1h of sunshine, July has the most sunshine of the year in Fairfield, Montana.

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

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

What is the least humid month in Fairfield?

With an average relative humidity of 42%, August is the least humid month.

What is the coldest month in Fairfield?

December is the coldest month in Fairfield, Montana, exhibiting average temperatures of 28.8°F (-1.8°C) at the peak and 16.2°F (-8.8°C) at the base.

What is the driest month in Fairfield?

The month with the least rainfall is December, when the rain falls for 3.5 days and typically collects 0.35" (9mm) of precipitation.

What is the month with the shortest days in Fairfield?

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

What is the month with the least sunshine in Fairfield?

With an average of 5.8h of sunshine, December has the least sunshine of the year in Fairfield, Montana.

Average temperature
Fairfield, MT

Average temperature - Fairfield, MT

The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is December (28.8°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 (16.2°F).

Average pressure
Fairfield, MT

Average pressure - Fairfield, MT

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

Average wind speed
Fairfield, MT

Average wind speed - Fairfield, MT

The windiest month (with the highest average wind speed) is January (11.2mph).
The calmest months (with the lowest average wind speed) are July and August (8mph).

Average humidity
Fairfield, MT

Average humidity - Fairfield, MT

The month with the highest relative humidity is January (76%).
The month with the lowest relative humidity is August (42%).

Average rainfall
Fairfield, MT

Average rainfall - Fairfield, MT

The wettest month (with the highest rainfall) is June (1.93").
The driest month (with the least rainfall) is December (0.35").

Average rainfall days
Fairfield, MT

Average rainfall days - Fairfield, MT

The month with the highest number of rainy days is May (11.3 days).
The month with the least rainy days is November (2.7 days).

Average snowfall
Fairfield, MT

Average snowfall - Fairfield, MT

The month with the highest snowfall is February (4.17").
The months with the least snowfall are June, July and August (0").

Average snowfall days
Fairfield, MT

Average snowfall days - Fairfield, MT

The month with the highest number of snowfall days is February (11.3 days).
The months with the least snowfall days are July and August (0 days).

Average daylight / Average sunshine
Fairfield, MT

Average daylight / Average sunshine - Fairfield, MT

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 July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).

Average sunshine days
Fairfield, MT

Average sunshine days - Fairfield, MT

The month with the most sunshine days is October (23.2 days).
The month with the least sunshine days is February (15.8 days).

Average UV index
Fairfield, MT

Average UV index - Fairfield, MT

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).

Average visibility
Fairfield, MT

Average visibility - Fairfield, MT

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

Fairfield, Montana, USA

Weather forecast for your location

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