October Weather forecast - Autumn forecast

Weather in October
Frequently asked questions
Average temperature in October
Average pressure in October
Average wind speed in October
Average humidity in October
Average rainfall in October
Average rainfall days in October
Average snowfall in October
Average snowfall days in October
Average daylight in October
Average sunshine in October
Average sunshine days in October
Average UV index in October
Average cloud cover in October
Average visibility in October

Vast fields and planted forests near the scenic mountainous region in Big Sky, Montana

Weather in October

October, like September, is another chilly autumn month in Big Sky, Montana, with an average temperature fluctuating between 27.5°F (-2.5°C) and 45.5°F (7.5°C).

Temperature

In Big Sky, the average high-temperature in October significantly decreases from an enjoyable 63.5°F (17.5°C) in September to a frosty 45.5°F (7.5°C). In October, the average low-temperature is 27.5°F (-2.5°C).

Humidity

The average relative humidity in October is 71%.

Rainfall

In October, the rain falls for 8.3 days. Throughout October, 2.01" (51mm) of precipitation is accumulated. Throughout the year, in Big Sky, Montana, there are 116.1 rainfall days, and 23.5" (597mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Big Sky are January through December. In October, in Big Sky, it is snowing for 13.8 days. Throughout October, 12.44" (316mm) of snow is accumulated. Throughout the year, in Big Sky, there are 151.6 snowfall days, and 124.06" (3151mm) of snow is accumulated.

Daylight

In Big Sky, Montana, the average length of the day in October is 10h and 56min.
On the first day of October in Big Sky, sunrise is at 7:23 am and sunset at 7:06 pm. On the last day of the month, sunrise is at 8:02 am and sunset at 6:14 pm MDT.

Sunshine

In October, the average sunshine in Big Sky, Montana, is 6.6h.

UV index

In October, the average daily maximum UV index in Big Sky is 2. A UV Index value of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 2 in October interpret into the following advice:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.

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FAQ

What is the temperature in October in Big Sky?

The average high-temperature, in October, in Big Sky, is 45.5°F (7.5°C), while the average low-temperature is 27.5°F (-2.5°C).

What is the average humidity in October in Big Sky?

In October, the average relative humidity in Big Sky, Montana, is 71%.

How many days does it rain in October in Big Sky?

In Big Sky, in October, during 8.3 rainfall days, 2.01" (51mm) of precipitation is typically accumulated.

How many days does it snow in October in Big Sky?

In October, in Big Sky, it is snowing for 13.8 days. Throughout October, 12.44" (316mm) of snow is accumulated.

What is the average length of the day in October in Big Sky?

In Big Sky, the average day length in October is 10h and 56min.

When are sunrise and sunset in October in Big Sky?

In October, on the first day of the month, sunrise is at 7:23 am and sunset at 7:06 pm. On the last day of the month, in Big Sky, Montana, sunrise is at 8:02 am and sunset at 6:14 pm MDT.

How many hours of sunshine does Big Sky have in October?

In October, the average sunshine duration in Big Sky, Montana, is 6.6h.

What is the UV index reading in October in Big Sky?

The average daily maximum UV index in October in Big Sky, Montana, is 2. A UV Index reading of 2, and below, represents a minimal hazard to health from exposure to the Sun's UV radiation.

Today

Tomorrow

Long-term

Year J F M A M J J A S October N D

Sep

October

Nov

Average high temperature

63.5°F 17.5°C

45.5°F 7.5°C

32.2°F 0.1°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

5.6mph 9km/h

6.5mph 10.5km/h

7.1mph 11.4km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

Average daylight

Average sunshine

Average sunshine days

14.5

13.6

Average UV index

Average cloud cover

Average visibility

Average temperature in October
Big Sky, MT

Average high temperature in October: 45.5°F

The warmest month (with the highest average high temperature) is July (74.8°F).
The month with the lowest average high temperature is December (22.5°F).

Average low temperature in October: 27.5°F

The month with the highest average low temperature is August (45.1°F).
The coldest month (with the lowest average low temperature) is December (7.9°F).

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Average pressure in October
Big Sky, MT

Average pressure in October: 30.06"Hg

The month with the highest atmospheric pressure is January (30.22"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed in October
Big Sky, MT

Average wind speed in October: 6.1mph

The windiest month (with the highest average wind speed) is January (7.1mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

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Average humidity in October
Big Sky, MT

Average humidity in October: 71%

The months with the highest relative humidity are January and February (90%).
The month with the lowest relative humidity is August (51%).

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Average rainfall in October
Big Sky, MT

Average rainfall in October: 2.01"

The wettest months (with the highest rainfall) are April and May (2.91").
The driest month (with the least rainfall) is July (1.18").

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Average rainfall days in October
Big Sky, MT

Average rainfall days in October: 8.3 days

The month with the highest number of rainy days is June (16.6 days).
The month with the least rainy days is February (4.3 days).

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Average snowfall in October
Big Sky, MT

Average snowfall in October: 12.44"

The month with the highest snowfall is April (19.88").
The month with the least snowfall is August (0.08").

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Average snowfall days in October
Big Sky, MT

Average snowfall days in October: 13.8 days

The month with the highest number of snowfall days is March (21 days).
The month with the least snowfall days is August (0.3 days).

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Average daylight in October /
Average sunshine in October
Big Sky, MT

Average daylight in October: 10h and 56min

The month with the longest days is June (Average daylight: 15h and 35min).
The month with the shortest days is December (Average daylight: 8h and 49min).

Average sunshine in October: 6h and 36min

The month with the most sunshine is July (Average sunshine: 11h and 42min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).

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Average sunshine days in October
Big Sky, MT

Average sunshine days in October: 13.6 days

The month with the most sunshine days is September (14.5 days).
The month with the least sunshine days is May (5.7 days).

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Average UV index in October
Big Sky, MT

Average UV index in October: 2

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

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Average cloud cover in October
Big Sky, MT

Average cloud cover in October: 34

The month with the most cloud cover is February (Cloud cover 60).
The month with the least cloud cover is July (Cloud cover 17).

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Average visibility in October
Big Sky, MT

Average visibility in October: 6mi

The months with the highest visibility are June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, March, April and December (4mi).

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October weather forecast
Big Sky, MT

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