Monthly weather forecast and climate
Fairfield, MT

January, like December, is another subzero cold winter month in Fairfield, Montana, with temperature in the range of an average high of 30.4°F (-0.9°C) and an average low of 18°F (-7.8°C). In January, the average high-temperature is relatively the same as in December - a still freezing cold 30.4°F (-0.9°C). Weather in January »

February, the last month of the winter, in Fairfield, is another freezing cold month, with average temperature fluctuating between 16.3°F (-8.7°C) and 30.2°F (-1°C). In February, the average high-temperature is essentially the same as in January - a still freezing cold 30.2°F (-1°C). Weather in February »

The first month of the spring, March, is a cold month in Fairfield, Montana, with average temperature varying between 40.3°F (4.6°C) and 25.5°F (-3.6°C). In Fairfield, the average high-temperature increases, from a freezing cold 30.2°F (-1°C) in February, to a wintry 40.3°F (4.6°C). Weather in March »

April is a chilly spring month in Fairfield, Montana, with average temperature varying between 33.6°F (0.9°C) and 49.6°F (9.8°C). In April, the average high-temperature rises, from a cold 40.3°F (4.6°C) in March, to a frosty 49.6°F (9.8°C). Weather in April »

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). In May, the average high-temperature rises, from a chilly 49.6°F (9.8°C) in April, to a moderate 60.4°F (15.8°C). Weather in May »

June, the first month of the summer, in Fairfield, is an agreeable month, with temperature in the range of an average low of 48°F (8.9°C) and an average high of 69.1°F (20.6°C). In Fairfield, the average high-temperature in June slightly increases, from a moderate 60.4°F (15.8°C) in May, to an agreeable 69.1°F (20.6°C). Weather in June »

July in Fairfield, Montana, is a warm summer month, with temperature in the range of an average high of 79.7°F (26.5°C) and an average low of 54.5°F (12.5°C). The warmest month is July, with an average high-temperature of 79.7°F (26.5°C) and an average low-temperature of 54.5°F (12.5°C). Weather in July »

August, the last month of the summer, in Fairfield, is another warm month, with average temperature varying between 55.9°F (13.3°C) and 79°F (26.1°C). In August, the average high-temperature is practically the same as in July - a still moderately hot 79°F (26.1°C). Weather in August »

September, the first month of the autumn, in Fairfield, is also an agreeable 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). In Fairfield, Montana, the average high-temperature in September decreases, from a warm 79°F (26.1°C) in August, to a pleasant 68.2°F (20.1°C). Weather in September »

October, the same as September, is a cool autumn month in Fairfield, Montana, with average temperature fluctuating between 35.8°F (2.1°C) and 52.3°F (11.3°C). In Fairfield, the average high-temperature in October declines considerably, from an agreeable 68.2°F (20.1°C) in September, to a cool 52.3°F (11.3°C). Weather in October »

The last month of the autumn, November, is also a wintry month in Fairfield, Montana, with average temperature ranging between min 25.3°F (-3.7°C) and max 39.2°F (4°C). In Fairfield, Montana, the average high-temperature in November decreases, from a fresh 52.3°F (11.3°C) in October, to a cold 39.2°F (4°C). Weather in November »

The first month of the winter, December, is also a subzero cold month in Fairfield, Montana, with temperature in the range of an average low of 16.2°F (-8.8°C) and an average high of 28.8°F (-1.8°C). December is the coldest month, with an average high-temperature of 28.8°F (-1.8°C) and an average low-temperature of 16.2°F (-8.8°C). Weather in December »

What is the most humid month in Fairfield?

With an average relative humidity of 76%, January is the most humid month.

How much does it rain in Fairfield?

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

When does it snow in Fairfield?

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

How many days does it snow in Fairfield?

In Fairfield, during the entire year, snow falls for 50.3 days, and aggregates up to 21.26" (540mm) of snow.

When is the lowest UV index in Fairfield?

Months with the lowest UV index in Fairfield, Montana, are January through March, October through December, with an average maximum UV index of 2.

What is the snowiest month in Fairfield?

The month with the most snowfall in Fairfield is February when snow falls for 11.3 days and typically aggregates up to 4.17" (106mm) of snow.

What is the wettest month in Fairfield?

The month with the most rainfall is June when the rain falls for 11.1 days and typically aggregates up to 1.93" (49mm) of precipitation.

When it does not snow in Fairfield?

June through August are months without snowfall.

When are the longest days in Fairfield?

The month with the longest days in Fairfield is June, with an average of 15.9h of daylight.

What is the warmest month in Fairfield?

July is the warmest month in Fairfield, Montana, with an average high-temperature of 79.7°F (26.5°C) and an average low-temperature of 54.5°F (12.5°C).

What month has the most sunshine in Fairfield?

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

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

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

What is the least humid month in Fairfield?

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

What is the coldest month in Fairfield?

The coldest month is December, with an average high-temperature of 28.8°F (-1.8°C) and an average low-temperature of 16.2°F (-8.8°C).

What is the driest month in Fairfield?

December is the month with the least rainfall in Fairfield, Montana. Rain falls for 3.5 days and accumulates 0.35" (9mm) of precipitation.

What is the month with the shortest days in Fairfield?

December has the shortest days of the year in Fairfield, Montana, with an average of 8.5h of daylight.

What is the month with the least sunshine in Fairfield?

The month with the least sunshine in Fairfield, Montana, is December, with an average of 5.8h of sunshine.
Average temperature - Fairfield, MT
Average pressure - Fairfield, MT

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

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 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

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 days - Fairfield, MT

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

Average daylight / Average sunshine - Fairfield, MT

The month with the longest days is June (Average daylight: 15.9h).
The month with the shortest days is December (Average daylight: 8.5h).

The month with the most sunshine is July (Average sunshine: 12.1h).
The month with the least sunshine is December (Average sunshine: 5.8h).

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 visibility - Fairfield, MT

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