Monthly weather forecast and climate
Columbia Falls, MT

Weather in January

January, like December, is a freezing cold winter month in Columbia Falls, Montana, with average temperature varying between 14.4°F (-9.8°C) and 27.1°F (-2.7°C). In January, the average high-temperature is essentially the same as in December - a still subzero cold 27.1°F (-2.7°C). Weather in January »

Weather in February

The last month of the winter, February, is also a subzero cold month in Columbia Falls, Montana, with average temperature ranging between max 28.2°F (-2.1°C) and min 13.5°F (-10.3°C). In February, the average high-temperature is practically the same as in January - a still subzero cold 28.2°F (-2.1°C). Weather in February »

Weather in March

The first month of the spring, March, is a wintry month in Columbia Falls, Montana, with temperature in the range of an average low of 21.6°F (-5.8°C) and an average high of 36.1°F (2.3°C). In March, the average high-temperature slightly increases, from a subzero cold 28.2°F (-2.1°C) in February, to a cold 36.1°F (2.3°C). Weather in March »

Weather in April

April in Columbia Falls, Montana, is a chilly spring month, with average temperature ranging between max 46.6°F (8.1°C) and min 28°F (-2.2°C). In Columbia Falls, the average high-temperature in April increases, from a wintry 36.1°F (2.3°C) in March, to a chilly 46.6°F (8.1°C). Weather in April »

Weather in May

The last month of the spring, May, is a mild month in Columbia Falls, Montana, with average temperature fluctuating between 59.5°F (15.3°C) and 35.2°F (1.8°C). In Columbia Falls, the average high-temperature increases, from a frosty 46.6°F (8.1°C) in April, to a moderate 59.5°F (15.3°C). Weather in May »

Weather in June

June, the first month of the summer, in Columbia Falls, is a comfortable month, with average temperature fluctuating between 41.2°F (5.1°C) and 66.4°F (19.1°C). In Columbia Falls, the average high-temperature slightly increases, from a mild 59.5°F (15.3°C) in May, to a comfortable 66.4°F (19.1°C). Weather in June »

Weather in July

July in Columbia Falls, Montana, is a moderately hot summer month, with temperature in the range of an average low of 45.1°F (7.3°C) and an average high of 77.9°F (25.5°C). The warmest month is July, with an average high-temperature of 77.9°F (25.5°C) and an average low-temperature of 45.1°F (7.3°C). Weather in July »

Weather in August

August, the last month of the summer, in Columbia Falls, is also a moderately hot month, with average temperature varying between 45.5°F (7.5°C) and 76.8°F (24.9°C). In August, the average high-temperature is relatively the same as in July - a still warm 76.8°F (24.9°C). Weather in August »

Weather in September

The first month of the autumn, September, is still a comfortable month in Columbia Falls, Montana, with temperature in the range of an average high of 65.5°F (18.6°C) and an average low of 39.2°F (4°C). In Columbia Falls, the average high-temperature decreases, from a moderately hot 76.8°F (24.9°C) in August, to an enjoyable 65.5°F (18.6°C). Weather in September »

Weather in October

October, like September, is a frosty autumn month in Columbia Falls, Montana, with temperature in the range of an average low of 30.7°F (-0.7°C) and an average high of 48.4°F (9.1°C). In Columbia Falls, the average high-temperature significantly decreases, from an enjoyable 65.5°F (18.6°C) in September, to a frosty 48.4°F (9.1°C). Weather in October »

Weather in November

November, the last month of the autumn, in Columbia Falls, is another cold month, with average temperature fluctuating between 34.5°F (1.4°C) and 23°F (-5°C). In Columbia Falls, the average high-temperature in November decreases, from a frosty 48.4°F (9.1°C) in October, to a cold 34.5°F (1.4°C). Weather in November »

Weather in December

The first month of the winter, December, is also a subzero cold month in Columbia Falls, Montana, with temperature in the range of an average low of 13.8°F (-10.1°C) and an average high of 25.7°F (-3.5°C). The coldest month is December, with an average high-temperature of 25.7°F (-3.5°C) and an average low-temperature of 13.8°F (-10.1°C). Weather in December »
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FAQ

What is the most humid month in Columbia Falls?

With an average relative humidity of 93%, January is the most humid month.

How much does it rain in Columbia Falls?

Throughout the year, there are 126.4 rainfall days, and 11.22" (285mm) of precipitation is accumulated.

When does it snow in Columbia Falls?

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

How much does it snow in Columbia Falls?

In Columbia Falls, Montana, during the entire year, snow falls for 97 days, and aggregates up to 33.86" (860mm) of snow.

What is the snowiest month in Columbia Falls?

The month with the most snowfall in Columbia Falls is January when snow falls for 18.9 days and typically aggregates up to 7.72" (196mm) of snow.

What is the month with the least sunshine in Columbia Falls?

With an average of 3.5h of sunshine, January has the least sunshine of the year in Columbia Falls.

What are the months with the lowest UV index in Columbia Falls?

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

What is the wettest month in Columbia Falls?

June is the month with the most rainfall in Columbia Falls. Rain falls for 13.7 days and accumulates 1.42" (36mm) of precipitation.

When it does not snow in Columbia Falls?

June through August are months without snowfall.

When are the longest days in Columbia Falls?

The month with the longest days is June, with an average of 16h of daylight.

What is the warmest month in Columbia Falls?

The warmest month is July, with an average high-temperature of 77.9°F (25.5°C) and an average low-temperature of 45.1°F (7.3°C).

What month has the most sunshine in Columbia Falls?

July has the most sunshine of the year in Columbia Falls, Montana, with an average of 11.9h of sunshine.

What is the month with the highest UV index in Columbia Falls?

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

What is the least humid month in Columbia Falls?

With an average relative humidity of 55%, August is the least humid month in Columbia Falls, Montana.

What is the driest month in Columbia Falls?

The month with the least rainfall is August when the rain falls for 6.3 days and typically collects 0.43" (11mm) of precipitation.

What is the coldest month in Columbia Falls?

December is the coldest month in Columbia Falls, with an average high-temperature of 25.7°F (-3.5°C) and an average low-temperature of 13.8°F (-10.1°C).

What is the month with the shortest days in Columbia Falls?

The month with the shortest days is December, with an average of 8.4h of daylight.

Average temperature
Columbia Falls, MT

Average temperature - Columbia Falls, MT

The warmest month (with the highest average high temperature) is July (77.9°F).
The month with the lowest average high temperature is December (25.7°F).

The month with the highest average low temperature is August (45.5°F).
The coldest month (with the lowest average low temperature) is February (13.5°F).

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Average pressure
Columbia Falls, MT

Average pressure - Columbia Falls, MT

The month with the highest atmospheric pressure is January (30.16").
The month with the lowest atmospheric pressure is June (29.91").

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Average wind speed
Columbia Falls, MT

Average wind speed - Columbia Falls, MT

The windiest month (with the highest average wind speed) is April (4.6mph).
The calmest months (with the lowest average wind speed) are August and December (3.7mph).

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Average humidity
Columbia Falls, MT

Average humidity - Columbia Falls, MT

The month with the highest relative humidity is January (93%).
The month with the lowest relative humidity is August (55%).

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Average rainfall
Columbia Falls, MT

Average rainfall - Columbia Falls, MT

The wettest month (with the highest rainfall) is June (1.42").
The driest month (with the least rainfall) is August (0.43").

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Average rainfall days
Columbia Falls, MT

Average rainfall days - Columbia Falls, MT

The month with the highest number of rainy days is April (15.8 days).
The month with the least rainy days is August (6.3 days).

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Average snowfall
Columbia Falls, MT

Average snowfall - Columbia Falls, MT

The month with the highest snowfall is January (7.72").
Months with the least snowfall are June, July and August (0").

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Average snowfall days
Columbia Falls, MT

Average snowfall days - Columbia Falls, MT

The month with the highest number of snowfall days is December (19.1 days).
Months with the least snowfall days are July and August (0 days).

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Average daylight / Average sunshine
Columbia Falls, MT

Average daylight / Average sunshine - Columbia Falls, MT

The month with the longest days is June (Average daylight: 16h).
The month with the shortest days is December (Average daylight: 8.4h).

The month with the most sunshine is July (Average sunshine: 11.9h).
The month with the least sunshine is January (Average sunshine: 3.5h).

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Average sunshine days
Columbia Falls, MT

Average sunshine days - Columbia Falls, MT

The month with the most sunshine days is July (21.5 days).
The month with the least sunshine days is March (7.7 days).

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Average UV index
Columbia Falls, MT

Average UV index - Columbia Falls, MT

The month with the highest UV index is July (UV index 6).
Months with the lowest UV index are January, February, November and December (UV index 1).

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Average visibility
Columbia Falls, MT

Average visibility - Columbia Falls, MT

Months with the highest visibility are May, June, July, August, September and October (6mi).
The month with the lowest visibility is January (3mi).

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