Butte
Montana, USA
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Butte, MT

Houses and old frames in an open space that is a former mine ground in Butte, Montana, a beautiful hilly landscape and cloudy skies high above
Houses and old frames in an open space that is a former mine ground in Butte, Montana, a beautiful hilly landscape and cloudy skies high above
January, the same as December, in Butte, Montana, is another subzero cold winter month, with average temperature fluctuating between 32°F (0°C) and 27.9°F (-2.3°C). In Butte, the average high-temperature in January is practically the same as in December - a still subzero cold 27.9°F (-2.3°C). Weather in January »

The last month of the winter, February, is also a subzero cold month in Butte, Montana, with temperature in the range of an average high of 27.5°F (-2.5°C) and an average low of 32°F (0°C). In February, the average high-temperature is relatively the same as in January - a still freezing cold 27.5°F (-2.5°C). Weather in February »

The first month of the spring, March, is a cold month in Butte, Montana, with temperature in the range of an average high of 35.1°F (1.7°C) and an average low of 32°F (0°C). In Butte, the average high-temperature slightly increases, from a freezing cold 27.5°F (-2.5°C) in February, to a wintry 35.1°F (1.7°C). Weather in March »

April in Butte, Montana, is a frosty spring month, with average temperature varying between 32°F (0°C) and 43.3°F (6.3°C). In April, the average high-temperature marginally rises, from a wintry 35.1°F (1.7°C) in March, to a frosty 43.3°F (6.3°C). Weather in April »

The last month of the spring, May, is a fresh month in Butte, Montana, with average temperature varying between 32°F (0°C) and 55°F (12.8°C). In May, the average high-temperature increases, from a frosty 43.3°F (6.3°C) in April, to a cool 55°F (12.8°C). Weather in May »

June, the first month of the summer, in Butte, is an enjoyable month, with average temperature ranging between max 65.5°F (18.6°C) and min 32°F (0°C). In Butte, Montana, the average high-temperature increases, from a fresh 55°F (12.8°C) in May, to an enjoyable 65.5°F (18.6°C). Weather in June »

July is a moderately hot summer month in Butte, Montana, with average temperature varying between 76.5°F (24.7°C) and 32°F (0°C). With an average high-temperature of 76.5°F (24.7°C) and an average low-temperature of 32°F (0°C), July is the warmest month. Weather in July »

August, the last month of the summer, in Butte, is another warm month, with average temperature ranging between max 74.8°F (23.8°C) and min 32°F (0°C). In August, the average high-temperature is practically the same as in July - a still moderately hot 74.8°F (23.8°C). Weather in August »

September, the first month of the autumn, in Butte, is also an enjoyable month, with average temperature fluctuating between 64.9°F (18.3°C) and 32°F (0°C). In Butte, the average high-temperature drops, from a warm 74.8°F (23.8°C) in August, to an enjoyable 64.9°F (18.3°C). Weather in September »

October, like September, is a frosty autumn month in Butte, Montana, with temperature in the range of an average low of 32°F (0°C) and an average high of 48.6°F (9.2°C). In Butte, the average high-temperature in October significantly decreases, from an enjoyable 64.9°F (18.3°C) in September, to a chilly 48.6°F (9.2°C). Weather in October »

The last month of the autumn, November, is also a wintry month in Butte, Montana, with temperature in the range of an average low of 32°F (0°C) and an average high of 35.1°F (1.7°C). In November, the average high-temperature decreases, from a chilly 48.6°F (9.2°C) in October, to a wintry 35.1°F (1.7°C). Weather in November »

December, the first month of the winter, in Butte, is also a subzero cold month, with average temperature varying between 25.2°F (-3.8°C) and 32°F (0°C). With an average high-temperature of 25.2°F (-3.8°C) and an average low-temperature of 32°F (0°C), December is the coldest month. Weather in December »

What are the most humid months in Butte?

Months with the highest humidity in Butte, Montana, are January, February and December, with an average relative humidity of 87%.

How much does it rain in Butte?

Throughout the year, in Butte, there are 102.5 rainfall days, and 13.74" (349mm) of precipitation is accumulated.

What is the driest month in Butte?

Months with the least rainfall are January, November and December Rain falls for 4.3 days and accumulates 0.67" (17mm) of rain.

When does it snow in Butte?

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

How much does it snow in Butte?

Throughout the year, in Butte, there are 103.1 snowfall days, and 52.56" (1335mm) of snow is accumulated.

What is the month with the lowest UV index in Butte?

The month with the lowest UV index in Butte is February, with an average maximum UV index of 1.

When does it snow the most in Butte?

March is the month with the most snowfall. Snow falls for 16.1 days and accumulates 8.74" (222mm) of snow.

What is the wettest month in Butte?

May is the month with the most rainfall. Rain falls for 15.9 days and accumulates 2.24" (57mm) of precipitation.

When are the longest days in Butte?

June has the longest days of the year in Butte, Montana, with an average of 15.7h of daylight.

What is the warmest month in Butte?

The warmest month is July, with an average high-temperature of 76.5°F (24.7°C) and an average low-temperature of 32°F (0°C).

What is the least humid month in Butte?

The least humid month is July, with an average relative humidity of 48%.

When it does not snow in Butte?

July and August are months without snowfall in Butte.

What month has the most sunshine in Butte?

July has the most sunshine of the year in Butte, with an average of 11.5h of sunshine.

When is the highest UV index in Butte?

With an average maximum UV index of 5, July is the month with the highest UV index in Butte.

What is the coldest month in Butte?

December is the coldest month in Butte, Montana, with an average high-temperature of 25.2°F (-3.8°C) and an average low-temperature of 32°F (0°C).

What is the month with the shortest days in Butte?

The month with the shortest days in Butte is December, with an average of 8.7h of daylight.

What is the month with the least sunshine in Butte?

With an average of 5.3h of sunshine, December has the least sunshine of the year in Butte.
Average temperature - Butte, MT

The warmest month (with the highest average high temperature) is July (76.5°F).
The month with the lowest average high temperature is December (25.2°F).

Months with the highest average low temperature are January, February, March, April, May, June, July, August, September, October, November and December (0°F).
Coldest months (with the lowest average low temperature) are January, February, March, April, May, June, July, August, September, October, November and December (0°F).

Average humidity - Butte, MT
Average rainfall - Butte, MT

The wettest month (with the highest rainfall) is May (2.24").
Driest months (with the lowest rainfall) are January, November and December (0.67").

Average rainfall days - Butte, MT

The month with the highest number of rainy days is May (15.9 days).
The month with the lowest number of rainy days is November (4.1 days).

Average snowfall days - Butte, MT

The month with the highest number of snowfall days is February (17.7 days).
Months with the lowest number of snowfall days are July and August (0 days).

Average daylight / Average sunshine - Butte, MT