Monthly weather forecast and climate
Marion, MT

January, the same as December, in Marion, Montana, is a freezing cold winter month, with average temperature fluctuating between 16.2°F (-8.8°C) and 28.6°F (-1.9°C). In Marion, the average high-temperature in January is relatively the same as in December - a still freezing cold 28.6°F (-1.9°C). Weather in January »

February, the last month of the winter, in Marion, is another freezing cold month, with temperature in the range of an average low of 16.3°F (-8.7°C) and an average high of 29.7°F (-1.3°C). In February, the average high-temperature is essentially the same as in January - a still freezing cold 29.7°F (-1.3°C). Weather in February »

The first month of the spring, March, is a wintry month in Marion, Montana, with average temperature fluctuating between 23.4°F (-4.8°C) and 38.3°F (3.5°C). In March, the average high-temperature marginally rises, from a freezing cold 29.7°F (-1.3°C) in February, to a cold 38.3°F (3.5°C). Weather in March »

April in Marion, Montana, is a frosty spring month, with temperature in the range of an average high of 47.8°F (8.8°C) and an average low of 29.7°F (-1.3°C). In April, the average high-temperature rises, from a wintry 38.3°F (3.5°C) in March, to a frosty 47.8°F (8.8°C). Weather in April »

May, the last month of the spring, in Marion, is a comfortable month, with average temperature ranging between max 60.8°F (16°C) and min 36.7°F (2.6°C). In May, the average high-temperature increases, from a frosty 47.8°F (8.8°C) in April, to an enjoyable 60.8°F (16°C). Weather in May »

June, the first month of the summer, in Marion, is a pleasant month, with average temperature fluctuating between 68°F (20°C) and 42.8°F (6°C). In Marion, the average high-temperature marginally rises, from an enjoyable 60.8°F (16°C) in May, to a pleasant 68°F (20°C). Weather in June »

July in Marion, Montana, is a warm summer month, with average temperature varying between 48.4°F (9.1°C) and 79.3°F (26.3°C). The warmest month is July, with an average high-temperature of 79.3°F (26.3°C) and an average low-temperature of 48.4°F (9.1°C). Weather in July »

The last month of the summer, August, is also a moderately hot month in Marion, Montana, with average temperature fluctuating between 78.4°F (25.8°C) and 48.2°F (9°C). In August, the average high-temperature is practically the same as in July - a still moderately hot 78.4°F (25.8°C). Weather in August »

The first month of the autumn, September, is still a comfortable month in Marion, Montana, with temperature in the range of an average high of 67.1°F (19.5°C) and an average low of 41.5°F (5.3°C). In Marion, the average high-temperature drops, from a moderately hot 78.4°F (25.8°C) in August, to an enjoyable 67.1°F (19.5°C). Weather in September »

October, the same as September, is another fresh autumn month in Marion, Montana, with average temperature varying between 32.7°F (0.4°C) and 50.4°F (10.2°C). In Marion, the average high-temperature plummets, from a comfortable 67.1°F (19.5°C) in September, to a cool 50.4°F (10.2°C). Weather in October »

The last month of the autumn, November, is also a wintry month in Marion, Montana, with temperature in the range of an average low of 24.1°F (-4.4°C) and an average high of 36°F (2.2°C). In Marion, the average high-temperature in November drops, from a fresh 50.4°F (10.2°C) in October, to a wintry 36°F (2.2°C). Weather in November »

December, the first month of the winter, in Marion, is still a freezing cold month, with average temperature ranging between min 16.2°F (-8.8°C) and max 27.1°F (-2.7°C). The coldest month is December, with an average high-temperature of 27.1°F (-2.7°C) and an average low-temperature of 16.2°F (-8.8°C). Weather in December »

What is the most humid month in Marion?

The most humid month in Marion, Montana, is January, with an average relative humidity of 93%.

How much does it rain in Marion?

Throughout the year, in Marion, Montana, there are 129.8 rainfall days, and 16.42" (417mm) of precipitation is accumulated.

When does it snow in Marion?

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

How much does it snow in Marion?

Throughout the year, there are 117.4 snowfall days, and 58.62" (1489mm) of snow is accumulated.

What is the month with the least sunshine in Marion?

January has the least sunshine of the year in Marion, Montana, with an average of 3.5h of sunshine.

What are the months with the lowest UV index in Marion?

Months with the lowest UV index in Marion, Montana, are January, February, November and December, with an average maximum UV index of 1.

What is the wettest month in Marion?

The month with the most rainfall is June when the rain falls for 14.9 days and typically aggregates up to 1.89" (48mm) of precipitation.

When are the longest days in Marion?

With an average of 16h of daylight, June has the longest days of the year in Marion, Montana.

What is the warmest month in Marion?

With an average high-temperature of 79.3°F (26.3°C) and an average low-temperature of 48.4°F (9.1°C), July is the warmest month in Marion, Montana.

What are the least humid months in Marion?

July and August, with an average relative humidity of 52%, are the least humid months in Marion.

What is the driest month in Marion?

July is the month with the least rainfall in Marion. Rain falls for 8 days and accumulates 0.59" (15mm) of precipitation.

When it does not snow in Marion?

July and August are months without snowfall in Marion.

What month has the most sunshine in Marion?

With an average of 11.7h of sunshine, July has the most sunshine of the year.

When is the highest UV index in Marion?

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

What is the coldest month in Marion?

With an average high-temperature of 27.1°F (-2.7°C) and an average low-temperature of 16.2°F (-8.8°C), December is the coldest month.

What is the snowiest month in Marion?

December is the month with the most snowfall. Snow falls for 21.7 days and accumulates 12.36" (314mm) of snow.

What is the month with the shortest days in Marion?

The month with the shortest days in Marion is December, with an average of 8.4h of daylight.
Average temperature - Marion, MT
Average pressure - Marion, MT

The month with the highest atmospheric pressure is January (30.17").
The month with the lowest atmospheric pressure is June (29.91").

Average wind speed - Marion, MT

The windiest month (with the highest average wind speed) is April (4.7mph).
The calmest months (with the lowest average wind speed) are August and December (3.6mph).

Average humidity - Marion, MT
Average rainfall - Marion, MT
Average rainfall days - Marion, MT

The month with the highest number of rainy days is April (15.9 days).
The month with the least rainy days is December (6.5 days).

Average snowfall - Marion, MT
Average snowfall days - Marion, MT

The month with the highest number of snowfall days is January (22.3 days).
Months with the least snowfall days are July and August (0 days).

Average daylight / Average sunshine - Marion, 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: 11.7h).
The month with the least sunshine is January (Average sunshine: 3.5h).

Average sunshine days - Marion, MT
Average visibility - Marion, MT