October 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

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. Despite this, the city remains vibrant with the tail end of fall colors, making for picturesque landscapes. The gentle coolness in the air highlights the city’s seasonal transition, calling people to explore the fading fall hues before winter settles in.

Temperature

With the transition into October, Butte experiences a significant decrease in average high-temperatures, moving down from a comfortable 64.9°F (18.3°C) in September to a chilly 48.6°F (9.2°C). Butte, during October, witnesses an average low-temperature of 29.1°F (-1.6°C).

Humidity

In October, the average relative humidity is 66%.

Rainfall

In October, the rain falls for 8 days. Throughout October, 0.87" (22mm) of precipitation is accumulated. In Butte, during the entire year, the rain falls for 102.5 days and collects up to 13.74" (349mm) of precipitation.

Snowfall

January through June, September through December are months with snowfall in Butte, Montana. In October, it is snowing for 7.5 days. Throughout October, 3.94" (100mm) of snow is accumulated. Throughout the year, there are 103.1 snowfall days, and 52.56" (1335mm) of snow is accumulated.

Daylight

In Butte, the average length of the day in October is 10h and 54min.
On the first day of October in Butte, sunrise is at 7:29 am and sunset at 7:09 pm. On the last day of the month, sunrise is at 8:10 am and sunset at 6:17 pm MDT.

Sunshine

The average sunshine in October in Butte is 6.8h.

UV index

In October, the average daily maximum UV index in Butte is 2. A UV Index value of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: A maximum daily UV index of 2 during October morphs into the following directions:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
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Frequently asked questions

What is the usual temperature for Butte in October?

During October, Butte experiences an average high-temperature of 48.6°F (9.2°C) and a low-temperature of 29.1°F (-1.6°C).

What is the average humidity in October in Butte?

In Butte, the average relative humidity in October is 66%.

How much does it rain in Butte in October?

In Butte, Montana, in October, it is raining for 8 days, with typically 0.87" (22mm) of accumulated precipitation.

How much does it snow in Butte in October?

In October, it is snowing for 7.5 days. Throughout October, 3.94" (100mm) of snow is accumulated.

What is the average length of the day in October in Butte?

In Butte, Montana, the average day length in October is 10h and 54min.

When is the sunrise / sunset in October in Butte?

In October, on the first day of the month, sunrise is at 7:29 am and sunset at 7:09 pm. On the last day of the month, sunrise is at 8:10 am and sunset at 6:17 pm MDT.

How long on average sun shines in October in Butte?

The average sunshine duration in October in Butte, Montana, is 6.8h.

How high is the UV index in October in Butte?

In October, the average daily maximum UV index in Butte, Montana, is 2. A UV Index of 2, and less, symbolizes a low health threat from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in October
Butte, MT

Average temperature in October - Butte, MT
  • Average high temperature in October: 48.6°F

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).

  • Average low temperature in October: 29.1°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).

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Average pressure in October
Butte, MT

Average pressure in October - Butte, MT
  • Average pressure in October: 30.06"Hg

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

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Average wind speed in October
Butte, MT

Average wind speed in October - Butte, MT
  • Average wind speed in October: 6.2mph

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).

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Average humidity in October
Butte, MT

Average humidity in October - Butte, MT
  • Average humidity in October: 66%

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

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Average rainfall in October
Butte, MT

Average rainfall in October - Butte, MT
  • Average rainfall in October: 0.87"

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").

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Average rainfall days in October
Butte, MT

Average rainfall days in October - Butte, MT
  • Average rainfall days in October: 8 days

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).

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Average snowfall in October
Butte, MT

Average snowfall in October - Butte, MT
  • Average snowfall in October: 3.94"

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

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Average snowfall days in October
Butte, MT

Average snowfall days in October - Butte, MT
  • Average snowfall days in October: 7.5 days

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).

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Average daylight in October /
Average sunshine in October
Butte, MT

Average daylight in October / Average sunshine in October - Butte, MT
  • Average daylight in October: 10h and 5min

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).

  • Average sunshine in October: 6h and 5min

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).

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Average sunshine days in October
Butte, MT

Average sunshine days in October - Butte, MT
  • Average sunshine days in October: 16.5 days

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

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Average UV index in October
Butte, MT

Average UV index in October - Butte, MT
  • Average UV index in October: 2

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

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Average cloud cover in October
Butte, MT

Average cloud cover in October - Butte, MT
  • Average cloud cover in October: 31

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

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Average visibility in October
Butte, MT

Average visibility in October - Butte, MT
  • Average visibility in October: 6mi

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).

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Butte, Montana, USA

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