The best times to visit Butte for ideal weather are

June 18th to September 9th

based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.

 

 


Other Butte Travel Info

Weather in Butte

Temperature

Average temperatures in Butte vary drastically. Considering humidity, temperatures feel cold for most of the year with a very low chance of rain or snow throughout the year. The area is less temperate than some — in the 35th percentile for pleasant weather — compared to tourist destinations worldwide. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit Butte, the hottest months are July, August, and then June. See average monthly temperatures below. The warmest time of year is generally early July where highs are regularly around 85.6°F (29.8°C) with temperatures rarely dropping below 47.4°F (8.6°C) at night.

Butte Temperatures (Fahrenheit)

Key
High
Average
Low

Butte Temperatures (Celsius)

Key
High
Average
Low

“Feels-Like” Temperatures

The way we experience weather isn’t all about temperature. Higher temperatures affect us much more at higher humidity, and colder temperatures feel piercing with high winds. Our perceived temperatures factor in humidity and wind chill to better represent how hot or cold the day feels to a person.

Butte Perceived Temperature (F)

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High
Average
Low

Butte Perceived Temperature (C)

Key
High
Average
Low

 

Average Butte Temperatures by Month

Daily highs (averaged for the month) usually give the best indication of the weather. A significantly lower mean and low generally just means it gets colder at night.

Show Fahrenheit

Month Avg. High (°F) Avg. Mean (°F) Avg. Low (°F)
Jan 35.6 22.5 11.5
Feb 34.8 22.1 11.1
Mar 46.8 33.3 21.2
Apr 52.6 38.1 25.7
May 62.1 46.9 32.8
Jun 72.8 56.5 40
Jul 83.9 65.5 46.2
Aug 81.2 62.5 44.1
Sep 72.7 53.7 36.9
Oct 58.6 42.1 28.8
Nov 39.7 26.1 14.6
Dec 32 19.7 8.7

Show Celsius

Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
Jan 2 -5.3 -11.4
Feb 1.6 -5.5 -11.6
Mar 8.2 0.7 -6
Apr 11.4 3.4 -3.5
May 16.7 8.3 0.4
Jun 22.7 13.6 4.4
Jul 28.8 18.6 7.9
Aug 27.3 16.9 6.7
Sep 22.6 12.1 2.7
Oct 14.8 5.6 -1.8
Nov 4.3 -3.3 -9.7
Dec 0 -6.8 -12.9

 


 

Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Butte are January, February, and then December. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around early January. For example, on the week of January 1st there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in late May with an average of 2 days of significant precipitation the week of May 21st.

When can you find snow in Butte? Weather stations report no annual snow. Please note that a value of 0 for snow in the graph below may either mean there was no snow, or that snow is unreported.

Chance of Precipitation

The graph below shows the % chance of rainy and snowy days in Butte.

Key
Days with precipitation

Snow on the Ground

The graph below shows the average snow on the ground in Butte (in).

Key
Snow depth

Average Rain and Snow by Month

Show Inches

Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
Jan 2% 0 0.2
Feb 3% 0 0.3
Mar 8% 0 0.7
Apr 9% 0 1
May 18% 0 1.7
Jun 21% 0 2.4
Jul 10% 0 1.2
Aug 11% 0 1.4
Sep 12% 0 1.3
Oct 8% 0 0.7
Nov 9% 0 0.7
Dec 5% 0 0.5

Show Centimeters

Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
Jan 2 0 0.5
Feb 3 0 0.8
Mar 8 0 1.8
Apr 9 0 2.5
May 18 0 4.3
Jun 21 0 6.1
Jul 10 0 3
Aug 11 0 3.6
Sep 12 0 3.3
Oct 8 0 1.8
Nov 9 0 1.8
Dec 5 0 1.3

 

Humidity and Wind

Butte has some humid months, and slightly dry months in the opposite season. The least humid month is July (30.7% relative humidity), and the most humid month is December (62%).

Wind in Butte is usually calm. The windiest month is April, followed by May and June. April’s average wind speed of around 6.2 knots (7.1 MPH or 11.5 KPH) is considered “a light breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in early to mid April where average top sustained speeds reach 16.6 knots, which is considered a moderate breeze.

Relative Humidity (%)

The graph below shows the average % humidity by month in Butte.

Key
Avg. Relative Humidity

Wind

The graph below shows wind speed (max and average) in knots.

Key
Max Sustained Wind
Average Daily Wind

Average Wind Speeds

Show Wind Speeds

All wind speeds are in knots. 1 knot = 1.15 MPH or 1.85 KPH.

Month Avg. Wind Avg. Wind Feel Sustained High Wind High Wind Feel
Jan 3.7 Barely noticeable 10.6 Gentle breeze
Feb 4.5 Light breeze 12.4 Significant breeze
Mar 5.5 Light breeze 14.7 Gentle breeze
Apr 6.2 Light breeze 15.7 Significant breeze
May 5.8 Light breeze 14.6 Gentle breeze
Jun 5.5 Light breeze 14.9 Significant breeze
Jul 5.1 Light breeze 14.8 Gentle breeze
Aug 4.6 Light breeze 14.4 Significant breeze
Sep 4.3 Light breeze 13 Gentle breeze
Oct 4.3 Light breeze 12.6 Significant breeze
Nov 4.2 Light breeze 11.7 Gentle breeze
Dec 3.5 Barely noticeable 10.1 Gentle breeze

Show Relative Humidity by Month

Month Avg. Relative Humidity
Jan 58.2%
Feb 53.9%
Mar 46.2%
Apr 41.3%
May 43.3%
Jun 39%
Jul 30.7%
Aug 33%
Sep 38.3%
Oct 47.9%
Nov 56.4%
Dec 62%

 

Is it Safe to Travel to Butte?

Our best data indicates this area is generally safe. As of Oct 07, 2019 there are no travel advisories or warnings for the United States; exercise normal security precautions. Check this page for any recent changes or regions to avoid: Travel Advice and Advisories. This advisory was last updated on Sep 23, 2019.


 

The Busiest and Least Crowded Months

The busiest month for tourism in Butte, MT, US is July, followed by August and May. Prices for hotels and flights will be most expensive during these months, though you can save if you purchase well in advance. Tourists are unlikely to visit Butte in September. Those willing to visit at these times will likely find it the least expensive month.

Estimated Tourism by Month

 

Most Popular Months to Visit

Key
Tourists Seeking Accommodations

Tourism graph is based on Google searches for services used by tourists relative to the rest of the year. Tourism data for this area is extrapolated based on nearby areas. Displayed data is calculated relative to the peak, so a score of 36.1 in September means 36.1% of the tourists vs. July.

 

 

Overall Butte Travel Experience by Season

Spring (March through May)

Humidity and temperatures combine to make this season feel moderately cold. Highs range from 63.8°F (17.7°C) and 35.7°F (2.1°C) with warmer temperatures in the later months. Rain is rare with 2 to 6 days of significant precipitation per month. Spring is the second busiest for tourism, which makes it a good time for those looking for things to do.

Summer (June through August)

The middle-year months have comfortably cool weather with high temperatures that are comfortable. These months see the most precipitation with 3 to 6 days of precipitation per month. June – August is the busiest season for tourism in Butte, so lodging and other accommodations may cost more than usual.

Fall (September through November)

Fall daily highs range from 73.9°F (23.3°C) and 35.3°F (1.8°C), which will feel chilly given the humidity and wind. It rains or snows a normal amount: 2 to 3 days per month. Tourism is the slowest during these months due to the weather, so hotels may be affordably priced.

Winter (December through February)

Weather is far too cold this time of year in Butte to be enjoyable for warm weather travelers. The average high during this season is between 41.9°F (5.5°C) and 28.9°F (-1.7°C). On average, it rains or snows a smalll amount: consistently 1 times per month. These times of year are fairly slow with tourists.

 

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