Saint Marie
Montana, USA
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Saint Marie, MT

January, like December, is a freezing cold winter month in Saint Marie, Montana, with average temperature varying between 10.9°F (-11.7°C) and 24.3°F (-4.3°C). In Saint Marie, the average high-temperature in January is relatively the same as in December - a still freezing cold 24.3°F (-4.3°C). Weather in January »

The last month of the winter, February, is also a subzero cold month in Saint Marie, Montana, with average temperature varying between 23.7°F (-4.6°C) and 10.2°F (-12.1°C). With an average high-temperature of 23.7°F (-4.6°C) and an average low-temperature of 10.2°F (-12.1°C), February is the coldest month. Weather in February »

March, the first month of the spring, in Saint Marie, is a cold month, with temperature in the range of an average low of 23.9°F (-4.5°C) and an average high of 38.3°F (3.5°C). In Saint Marie, the average high-temperature increases considerably, from a subzero cold 23.7°F (-4.6°C) in February, to a cold 38.3°F (3.5°C). Weather in March »

April in Saint Marie, Montana, is a cool spring month, with average temperature ranging between min 36°F (2.2°C) and max 52.2°F (11.2°C). In Saint Marie, the average high-temperature increases, from a cold 38.3°F (3.5°C) in March, to a cool 52.2°F (11.2°C). Weather in April »

May, the last month of the spring, in Saint Marie, is an enjoyable month, with average temperature ranging between min 46.9°F (8.3°C) and max 64.6°F (18.1°C). In Saint Marie, the average high-temperature in May rises, from a fresh 52.2°F (11.2°C) in April, to a comfortable 64.6°F (18.1°C). Weather in May »

June, the first month of the summer, in Saint Marie, is a warm month, with average temperature varying between 55.9°F (13.3°C) and 74.7°F (23.7°C). In Saint Marie, the average high-temperature increases, from an enjoyable 64.6°F (18.1°C) in May, to a warm 74.7°F (23.7°C). Weather in June »

July, the same as June, is another warm summer month in Saint Marie, Montana, with average temperature varying between 83.1°F (28.4°C) and 63.3°F (17.4°C). With an average high-temperature of 83.1°F (28.4°C) and an average low-temperature of 63.3°F (17.4°C), July is the warmest month. In July, the average heat index is evaluated at 82.9°F (28.3°C). Weather in July »

August, the last month of the summer, in Saint Marie, is also a moderately hot month, with average temperature fluctuating between 81.7°F (27.6°C) and 62.4°F (16.9°C). In Saint Marie, the average high-temperature is practically the same as in July - a still moderately hot 81.7°F (27.6°C). Weather in August »

September, the first month of the autumn, in Saint Marie, is still a pleasant month, with average temperature fluctuating between 70.2°F (21.2°C) and 53.8°F (12.1°C). In Saint Marie, the average high-temperature drops, from a moderately hot 81.7°F (27.6°C) in August, to a pleasant 70.2°F (21.2°C). Weather in September »

October, like September, in Saint Marie, Montana, is a cool autumn month, with average temperature varying between 53.8°F (12.1°C) and 39.6°F (4.2°C). In October, the average high-temperature declines considerably, from an agreeable 70.2°F (21.2°C) in September, to a cool 53.8°F (12.1°C). Weather in October »

The last month of the autumn, November, is also a wintry month in Saint Marie, Montana, with average temperature fluctuating between 25.7°F (-3.5°C) and 38.3°F (3.5°C). In November, the average high-temperature plummets, from a fresh 53.8°F (12.1°C) in October, to a wintry 38.3°F (3.5°C). Weather in November »

December, the first month of the winter, in Saint Marie, is still a freezing cold month, with average temperature varying between 24.6°F (-4.1°C) and 12.7°F (-10.7°C). In Saint Marie, the average high-temperature in December drops, from a cold 38.3°F (3.5°C) in November, to a subzero cold 24.6°F (-4.1°C). Weather in December »

What is the most humid month in Saint Marie?

With an average relative humidity of 86%, January is the most humid month in Saint Marie.

How much does it rain in Saint Marie?

Throughout the year, in Saint Marie, Montana, there are 90.8 rainfall days, and 11.1" (282mm) of precipitation is accumulated.

What is the driest month in Saint Marie?

Months with the least rainfall are January and February Rain falls for 2.5 days and accumulates 0.35" (9mm) of rain.

When does it snow in Saint Marie?

January through May, October through December are months with snowfall in Saint Marie, Montana.

How many days does it snow in Saint Marie?

Throughout the year, in Saint Marie, there are 43.8 snowfall days, and 13.11" (333mm) of snow is accumulated.

What is the coldest month in Saint Marie?

February is the coldest month in Saint Marie, with an average high-temperature of 23.7°F (-4.6°C) and an average low-temperature of 10.2°F (-12.1°C).

What is the month with the least sunshine in Saint Marie?

February has the least sunshine of the year in Saint Marie, Montana, with an average of 4.7h of sunshine.

What is the wettest month in Saint Marie?

The month with the most rainfall is June when the rain falls for 13.2 days and typically aggregates up to 2.01" (51mm) of precipitation.

When it does not snow in Saint Marie?

In Saint Marie snow does not fall in June through September.

When are the longest days in Saint Marie?

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

What is the warmest month in Saint Marie?

July is the warmest month in Saint Marie, with an average high-temperature of 83.1°F (28.4°C) and an average low-temperature of 63.3°F (17.4°C).

What month has the most sunshine in Saint Marie?

With an average of 11.8h of sunshine, July has the most sunshine of the year in Saint Marie, Montana.

When is the highest UV index in Saint Marie?

With an average maximum UV index of 7, July is the month with the highest UV index in Saint Marie, Montana.

What is the least humid month in Saint Marie?

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

What is the snowiest month in Saint Marie?

The month with the most snowfall in Saint Marie is December when snow falls for 8.6 days and typically aggregates up to 2.6" (66mm) of snow.

What is the month with the shortest days in Saint Marie?

With an average of 8.4h of daylight, December has the shortest days of the year.

What is the month with the lowest UV index in Saint Marie?

The month with the lowest UV index in Saint Marie is December, with an average maximum UV index of 1.
Average temperature - Saint Marie, MT
Average rainfall - Saint Marie, MT
Average rainfall days - Saint Marie, MT
Average snowfall - Saint Marie, MT
Average snowfall days - Saint Marie, MT

The month with the highest number of snowfall days is February (9.2 days).
Months with the least snowfall days are June, July and August (0 days).

Average daylight / Average sunshine - Saint Marie, 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: 11.8h).
The month with the least sunshine is February (Average sunshine: 4.7h).