Climate and monthly weather forecast
Butte, MT

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Houses and old frames in an open space that is a former mine ground in Butte, Montana
Houses and old frames in an open space that is a former mine ground in Butte, Montana

The climate of Butte

Butte, Montana, accompanies the Dfb Köppen climate classification, describing its environment as humid continental, with no dry season but a warm summer. While located in high elevation area, the elevation affects the average temperature, similarly rainfall pattern.

Throughout the year, Butte experiences diverse weather conditions. The highest recorded temperature is 76.5°F (24.7°C) in July, whilst the lowest temperature plunges to 9°F (-12.8°C) in December. Fluctuations in temperature across the year are substantial, with Spring harboring an average high of 43.3°F (6.3°C) preceding the Summer peak, then descending into Autumn with a temperature high of 64.9°F (18.3°C) and a Winter low of 25.2°F (-3.8°C). Rainfall also shows variations, the wettest month is May with 2.24" (57mm) of rainfall, contrastingly July is the driest with 0.79" (20mm) only.

Notably, Butte experiences snowy conditions, primarily from October till May, with February producing the most snow, 8.31" (211mm), and July showing no signs of snow. Moreover, it possessed considerably long daylight periods from 9.1 hours in January gradually increasing throughout the year to reach a peak of 15.7 hours in June. It implies longer days supply more sunshine yet it also means potentially high sun exposure and higher UV index levels.

The best time to visit Butte

Choosing the best time to visit Butte significantly depends on preferences. As per the data, the best time is typically between June and August. The temperatures range from 65.5°F (18.6°C) in June to 76.5°F (24.7°C) in July, which are ideal for outdoor activities. Relative humidity lowers to 48% and 49%, making it comfortable for the visitors. Moreover, not only rainfall is least around this time but also the windy conditions mitigate. With the most extended daylight of 15.7 hours in June, it allows more time to explore and enjoy the terrain.

The worst time to visit Butte

Visiting Butte between December and February could be challenging, as these months exhibit extreme cold conditions. From the lowest temperature of 9°F (-12.8°C) in December to 19.2°F (-7.1°C) in February, it could be difficult for individuals not accustomed to such chilling temperatures. Snowfall is heavy during these months, with 5.51" (140mm) in December, highest of 8.31 in February, further intensifying the cold. Additionally, the daylight hours are limited from 8.7 hours in December to 10.4 hours in February, and a UV index of only 1 in February signifies minimal sun exposure, which further decreases warmth.

Spring weather in Butte

Spring in Butte comes with a transition from cold Winter to a moderately warm climate. March sees an average high temperature of 35.1°F (1.7°C) which climbs to 55°F (12.8°C) by the end of May. The lower temperatures are 19.2°F (-7.1°C) and 34.2°F (1.2°C) respectively. A clear increment in rainfall is detected from 1.26" (32mm) to 2.24" (57mm), making May the wettest month. Considerably, snowfall retreats reducing from 8.74" (222mm) in March to a negligible 0.87" (22mm) in May. It is noteworthy that daylight hours increase significantly to 15 hours facilitating longer active hours for tourists and locals alike.

Summer weather in Butte

Summer in Butte is relatively warm and comfortable, with an average high temperature of 76.5°F (24.7°C) in July. The lowest temperature stays around 46°F (7.8°C) making the nights pleasant. It is a dry season, with minimum rain from 0.79" (20mm) to 0.71" (18mm), mostly in July and August. Furthermore, no snowfall is reported throughout the season. During Summer, daylight duration reaches its peak, offering up to 15.7 daylight hours in June.

Autumn weather in Butte

During Autumn, temperature gradually falls from a high of 64.9°F (18.3°C) in September to 35.1°F (1.7°C) by November. The lower temperature diminishes from a comfortable 40.1°F (4.5°C) to a colder 18.5°F (-7.5°C) in the same period. Rainfall decreases from 1.06" (27mm) in September to 0.67" (17mm) in November. Notably, snowfall resumes in October with a significant 3.94" (100mm) which amplifies in November. The daylight hours slowly contract from Autumn’s start of 12.5 hours to 9.5 hours by November.

Winter weather in Butte

Winter is cold and snowy in Butte. Average high temperatures decrease progressively from 35.1°F (1.7°C) in November to a freezing 25.2°F (-3.8°C) in December. The lowest temperature reported during Winter is around 9°F (-12.8°C) in December. Also, from November to February, it receives a considerable amount of snowfall with the highest 8.31" (211mm) snowfall in February. The daylight hours drop to 8.7 hours in December, the shortest in a year. Tourists who enjoy winter sports and snowy conditions might find this season ideal to visit Butte. However, one needs to be well-prepared for extreme cold and snow.

Weather in January

In the city of Butte, Montana, USA, January establishes itself as a chilly start to the year. Citizens are often seen nestled in heavy clothing while trudging through snowy landscapes, a testament to the cold, which comes from temperatures dropping to an average low of 11.1°F (-11.6°C). Weather in January »

Weather in February

The weather continues to follow the winter narrative in Butte, Montana, in February with little relief from the cold seen in January. Frosty mornings are typical, and snowfall adds a silent charm to the city. February sees the highest snowfall compared to any other month, with an average of 8.31" (211mm). Weather in February »

Weather in March

The arrival of March in Butte, Montana, brings a slow transition from winter to spring. Days start to get warmer, although chilly nights remain due to the still prevalent cold. An uptick in rainfall is observed - averaging at 1.26" (32mm) - heralding the arrival of the spring season. Weather in March »

Weather in April

In April, the city of Butte, Montana, begins to embrace spring in all its beauty. Residents shake off their winter coats to enjoy the mild daily temperatures and blooming flora. The city has a higher average temperature, signaling the retreat of the prolonged winter season. Weather in April »

Weather in May

Witness an enchanting spread of flora and a comfortable climate in Butte, Montana, in May. The city enjoys a steady shift to warmer days, experiencing a significant rise in daily temperatures. Precipitation reaches its peak at an average of 2.24" (57mm), creating a colorful panorama of lush green landscapes. Weather in May »

Weather in June

June commences the summer season in Butte, Montana, with longer daylight hours and comfortably warm temperatures. Enjoy the lively energy of Butte as the weather invites all for outdoor activities and community events. Residents bid farewell to the last remnants of the spring rains, which reduce considerably from the generous 2.24" (57mm) in May to 2.09" (53mm) in June. Weather in June »

Weather in July

July arrives, and summer is in full swing in Butte, Montana, with the highest average temperature of the year at 76.5°F (24.7°C). The city brings a warm welcome to visitors and locals alike with cloudless skies and extended hours of sunshine. Weather in July »

Weather in August

As the peak of summer passes in Butte, Montana, August provides a gentle reminder of the approaching autumn. Almost identical to July, the city experiences warm, sunny weather, but with a slight dip in the average temperature. The decrease in rainfall is marginal, from 0.79" (20mm) in July to 0.71" (18mm) in August, enforcing the summer dry spell. Weather in August »

Weather in September

September introduces the fall season to Butte, Montana, a period known for apple picking and changing foliage colors. The moderate weather allows for comfortable exploration of the city's scenic landscapes. The average temperature drops significantly from August’s heat to a more moderate level in September, signaling the approach of winter. Weather in September »

Weather in October

As Butte, Montana, steps into October, the climate begins to hold a chilly promise of the upcoming winter. Residents wrap themselves in warm clothing, ready for colder days and nights. October stands as a month of transition, moving from the warm autumn afternoon of September to the biting cold that winter brings. Weather in October »

Weather in November

November evokes the onset of winter in Butte, Montana, with colder temperatures and the recurrent snow. Residents dust off their snow equipment, preparing for the snowy landscape to return. The noticeable shift in weather, with average temperatures dropping to 35.1°F (1.7°C), heralds the Winter season. Weather in November »

Weather in December

December in Butte, Montana, is synonymous with a white Christmas, promising picturesque snow-covered landscapes. This winter month solidifies the cold weather with daily low temperatures dropping down to 9°F (-12.8°C). Comparing with November, residents experience a sharper descent into the frigid winter days, making outdoor activities a chilly adventure. Weather in December »
Updated: Jul 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the most humid months?

The months with the highest humidity are January, February and December, with an average relative humidity of 87%.

What is the driest month?

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

How many days does it rain in Butte?

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

When does it snow in Butte?

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

How many days does it snow?

In Butte, during the entire year, snow falls for 103.1 days and aggregates up to 52.56" (1335mm) of snow.

What is the month with the lowest UV index?

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

What is the snowiest month?

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

When is Daylight Saving Time (DST)?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from MST to MDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from MDT to MST.

What is the wettest month?

The month with the most rainfall is May, when the rain falls for 15.9 days and typically aggregates up to 2.24" (57mm) of precipitation.

When are the longest days?

The month with the longest days is June, with an average of 15h and 42min of daylight.

What are the warmest months?

With average high temperatures of 76.5°F (24.7°C) and lows of 46.9°F (8.3°C), July is the warmest month.

What is the least humid month?

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

When it does not snow?

In Butte, snow does not fall in July and August.

What month has the most sunshine?

The month with the most sunshine is July, with an average of 11.5h of sunshine.

When is the highest UV index?

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

What part of the year is the coldest?

With its average high temperature of 25.2°F (-3.8°C) and a low of 9°F (-12.8°C), December is regarded as the coldest month.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 8h and 42min of daylight.

What is the month with the least sunshine?

The month with the least sunshine is December, with an average of 5.3h of sunshine.
Today
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Long-term
YearJFMAMJJASOND

Average temperature
Butte, MT

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).

The month with the highest average low temperature is July (46.9°F).
The coldest month (with the lowest average low temperature) is December (9°F).

Average pressure
Butte, MT

Average pressure - Butte, MT

The month with the highest atmospheric pressure is January (30.21"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed
Butte, MT

Average wind speed - Butte, MT

The windiest month (with the highest average wind speed) is April (6.6mph).
The calmest month (with the lowest average wind speed) is August (5mph).

Average humidity
Butte, MT

Average humidity - Butte, MT

The months with the highest relative humidity are January, February and December (87%).
The month with the lowest relative humidity is July (48%).

Average rainfall
Butte, MT

Average rainfall - Butte, MT

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

Average rainfall days
Butte, MT

Average rainfall days - Butte, MT

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

Average snowfall
Butte, MT

Average snowfall - Butte, MT

The month with the highest snowfall is March (8.74").
The months with the least snowfall are July and August (0").

Average snowfall days
Butte, MT

Average snowfall days - Butte, MT

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

Average daylight / Average sunshine
Butte, MT

Average daylight / Average sunshine - Butte, MT

The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).

The month with the most sunshine is July (Average sunshine: 11h and 30min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).

Average sunshine days
Butte, MT

Average sunshine days - Butte, MT

The month with the most sunshine days is August (19.1 days).
The month with the least sunshine days is April (9.8 days).

Average UV index
Butte, MT

Average UV index - Butte, MT

The month with the highest UV index is July (UV index 5).
The month with the lowest UV index is February (UV index 1).

Average cloud cover
Butte, MT

Average cloud cover - Butte, MT

The month with the most cloud cover is February (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 16).

Average visibility
Butte, MT

Average visibility - Butte, 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).

Butte, Montana, USA

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