Climate and monthly weather forecast
Missoula, MT

The scenic area surrounding the iconic Higgins Street Bridge in Missoula, Montana
The scenic area surrounding the iconic Higgins Street Bridge in Missoula, Montana

Weather in January

January, like December, is a freezing cold winter month in Missoula, Montana, with temperature in the range of an average low of 16.7°F (-8.5°C) and an average high of 30.2°F (-1°C). In January, the average high-temperature is practically the same as in December - a still freezing cold 30.2°F (-1°C). Weather in January »

Weather in February

February, the last month of the winter in Missoula, is another freezing cold month, with an average temperature fluctuating between 30.7°F (-0.7°C) and 16.2°F (-8.8°C). In February, the average high-temperature is essentially the same as in January - a still freezing cold 30.7°F (-0.7°C). Weather in February »

Weather in March

March, the first month of the spring in Missoula, is a wintry month, with an average temperature ranging between max 39.6°F (4.2°C) and min 22.8°F (-5.1°C). In March, the average high-temperature slightly increases from a freezing cold 30.7°F (-0.7°C) in February to a wintry 39.6°F (4.2°C). Weather in March »

Weather in April

April is a chilly spring month in Missoula, Montana, with an average temperature ranging between min 27.3°F (-2.6°C) and max 47.8°F (8.8°C). In April, the average high-temperature slightly increases from a wintry 39.6°F (4.2°C) in March to a frosty 47.8°F (8.8°C). Weather in April »

Weather in May

May, the last month of the spring in Missoula, is a mild month, with an average temperature varying between 60.3°F (15.7°C) and 34.2°F (1.2°C). In May, the average high-temperature increases from a chilly 47.8°F (8.8°C) in April to a moderate 60.3°F (15.7°C). Weather in May »

Weather in June

June, the first month of the summer in Missoula, is an agreeable month, with an average temperature ranging between max 68.5°F (20.3°C) and min 40.6°F (4.8°C). In Missoula, the average high-temperature in June marginally rises from a moderate 60.3°F (15.7°C) in May to an agreeable 68.5°F (20.3°C). Weather in June »

Weather in July

July in Missoula, Montana, is a warm summer month, with an average temperature fluctuating between 46.4°F (8°C) and 80.2°F (26.8°C). The warmest month is July, with an average high-temperature of 80.2°F (26.8°C) and an average low-temperature of 46.4°F (8°C). Weather in July »

Weather in August

The last month of the summer, August, is another warm month in Missoula, Montana, with an average temperature varying between 79.7°F (26.5°C) and 46.9°F (8.3°C). In August, the average high-temperature is essentially the same as in July - a still moderately hot 79.7°F (26.5°C). Weather in August »

Weather in September

September, the first month of the autumn in Missoula, is still a pleasant month, with an average temperature ranging between min 41°F (5°C) and max 68.7°F (20.4°C). In September, the average high-temperature decreases from a moderately hot 79.7°F (26.5°C) in August to a pleasant 68.7°F (20.4°C). Weather in September »

Weather in October

October, the same as September, is a cool autumn month in Missoula, Montana, with an average temperature ranging between max 51.4°F (10.8°C) and min 31.3°F (-0.4°C). In October, the average high-temperature declines considerably from an agreeable 68.7°F (20.4°C) in September to a cool 51.4°F (10.8°C). Weather in October »

Weather in November

November, the last month of the autumn in Missoula, is another cold month, with an average temperature varying between 37.9°F (3.3°C) and 23.2°F (-4.9°C). In Missoula, the average high-temperature in November drops from a fresh 51.4°F (10.8°C) in October to a cold 37.9°F (3.3°C). Weather in November »

Weather in December

December, the first month of the winter in Missoula, is still a freezing cold month, with an average temperature ranging between max 28°F (-2.2°C) and min 15.4°F (-9.2°C). The coldest month is December, with an average high-temperature of 28°F (-2.2°C) and an average low-temperature of 15.4°F (-9.2°C). Weather in December »
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FAQ

What is the most humid month in Missoula?

With an average relative humidity of 90%, January is the most humid month in Missoula.

How many days does it rain in Missoula?

In Missoula, Montana, during the entire year, the rain falls for 67.5 days and collects up to 3.27" (83mm) of precipitation.

When does it snow in Missoula?

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

How much does it snow in Missoula?

Throughout the year, in Missoula, Montana, there are 44 snowfall days, and 8.07" (205mm) of snow is accumulated.

What is the month with the least sunshine in Missoula?

The month with the least sunshine in Missoula is January, with an average of 4.9h of sunshine.

What is the snowiest month in Missoula?

The month with the most snowfall is February, when snow falls for 8.4 days and typically aggregates up to 2.36" (60mm) of snow.

When is the lowest UV index in Missoula?

February and December, with an average maximum UV index of 1, are months with the lowest UV index.

When is Daylight Saving Time (DST) in Missoula?

On Sunday, March 13. 2022, at 2:00 am, Daylight Saving Time starts, and the time zone changes from MST to MDT. Daylight Saving Time ends Sunday, November 6. 2022, at 2:00 am, and the time zone reverts from MDT to MST.

What is the rainiest month in Missoula?

The month with the most rainfall in Missoula is April, when the rain falls for 8.8 days and typically aggregates up to 0.47" (12mm) of precipitation.

When it does not snow in Missoula?

June through August are months without snowfall.

When are the longest days in Missoula?

June has the longest days of the year in Missoula, Montana, with an average of 15h and 49min of daylight.

What is the warmest month in Missoula?

The warmest month in Missoula, Montana, is July, with an average high-temperature of 80.2°F (26.8°C) and an average low-temperature of 46.4°F (8°C).

What is the least humid month in Missoula?

With an average relative humidity of 50%, July is the least humid month in Missoula.

What is the driest month in Missoula?

The months with the least rainfall in Missoula are July and December Rain falls for 3.5 days and accumulates 0.16" (4mm) of rain.

What month has the most sunshine in Missoula?

The month with the most sunshine is July, with an average of 11.8h of sunshine.

When is the highest UV index in Missoula?

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

What is the coldest month in Missoula?

With an average high-temperature of 28°F (-2.2°C) and an average low-temperature of 15.4°F (-9.2°C), December is the coldest month in Missoula, Montana.

What is the month with the shortest days in Missoula?

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

Average temperature
Missoula, MT

Average temperature - Missoula, MT

The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is December (28°F).

The month with the highest average low temperature is August (46.9°F).
The coldest month (with the lowest average low temperature) is December (15.4°F).

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Average pressure
Missoula, MT

Average pressure - Missoula, MT

The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed
Missoula, MT

Average wind speed - Missoula, MT

The windiest month (with the highest average wind speed) is April (5mph).
The calmest month (with the lowest average wind speed) is August (4mph).

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Average rainfall
Missoula, MT

Average rainfall - Missoula, MT

The wettest month (with the highest rainfall) is April (0.47").
The driest months (with the least rainfall) are July and December (0.16").

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Average rainfall days
Missoula, MT

Average rainfall days - Missoula, MT

The month with the highest number of rainy days is April (8.8 days).
The month with the least rainy days is August (3.3 days).

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Average snowfall
Missoula, MT

Average snowfall - Missoula, MT

The month with the highest snowfall is February (2.36").
The months with the least snowfall are June, July and August (0").

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Average snowfall days
Missoula, MT

Average snowfall days - Missoula, MT

The month with the highest number of snowfall days is December (9 days).
The months with the least snowfall days are June, July and August (0 days).

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Average daylight / Average sunshine
Missoula, MT

Average daylight / Average sunshine - Missoula, MT

The month with the longest days is June (Average daylight: 15h and 49min).
The month with the shortest days is December (Average daylight: 8h and 36min).

The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).

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Average sunshine days
Missoula, MT

Average sunshine days - Missoula, MT

The month with the most sunshine days is July (27 days).
The month with the least sunshine days is April (17.8 days).

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Average visibility
Missoula, MT

Average visibility - Missoula, MT

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

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