October weather forecast
Billings, MT

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The forest of trees in the plains, on the sandstone bluffs in Billings, Montana
The forest of trees in the plains, on the sandstone bluffs in Billings, Montana

Weather in October

October in Billings ushers in the full essence of fall; temperatures decline down to between 39.9°F (4.4°C) and 56.5°F (13.6°C). Despite being one of the drier months with an average rainfall of 1.3" (33mm), the city is lively with fall foliage adorning the landscape. The brisk weather and colourful scenery make October an attractive time for outdoor activities before the cold of November sets in.

Temperature

Billings's weather in October is characterized by a distinct drop in the average high-temperature, reducing from a pleasant 73.2°F (22.9°C) in September to a mild 56.5°F (13.6°C). An average low-temperature of 39.9°F (4.4°C) is noted during the nights in October.

Humidity

In October, the average relative humidity is 55%.

Rainfall

In Billings, in October, during 11 rainfall days, 1.3" (33mm) of precipitation is typically accumulated. In Billings, during the entire year, the rain falls for 128.5 days and collects up to 14.69" (373mm) of precipitation.

Snowfall

Months with snowfall are January through May, September through December. In Billings, in October, snow falls for 2.7 days, with typically accumulated 1.85" (47mm) of snow. Throughout the year, there are 64.5 snowfall days, and 31.18" (792mm) of snow is accumulated.

Daylight

In Billings, the average length of the day in October is 10h and 55min.
On the first day of October, sunrise is at 7:13 am and sunset at 6:53 pm. On the last day of the month, sunrise is at 7:53 am and sunset at 6:01 pm MDT.

Sunshine

In October, the average sunshine is 6.4h.

UV index

In October, the average daily maximum UV index is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for average individuals.
Note: A daily high UV index of 3 in October leads to these guidelines:
Undertake precautions - Guarding against sun damage is counselled. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Updated: Jul 27, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are October temperatures?

In Billings, in October, the average high-temperature is 56.5°F (13.6°C), and the average low-temperature is 39.9°F (4.4°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in August is estimated at 82.4°F (28°C).

What is the average humidity in October?

In October, the average relative humidity is 55%.

How many days does it rain in October?

In Billings, in October, during 11 rainfall days, 1.3" (33mm) of precipitation is typically accumulated.

How many days does it snow in October?

In Billings, during October, snow falls for 2.7 days and regularly aggregates up to 1.85" (47mm) of snow.

What is the average length of the day in October?

The average day length in October is 10h and 55min.

When are sunrise and sunset in October?

On the first day of October in Billings, sunrise is at 7:13 am and sunset at 6:53 pm. On the last day of the month, sunrise is at 7:53 am and sunset at 6:01 pm MDT.

How long on average sun shines in October?

In October, the average sunshine duration is 6.4h.

What is the UV index reading in October?

The average daily maximum UV index in October is 3. A UV Index reading of 3 to 5 represents a moderate vulnerability from unsafe 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
Billings, MT

Average temperature in October - Billings, MT
  • Average high temperature in October: 56.5°F

The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is December (31.1°F).

  • Average low temperature in October: 39.9°F

The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is February (18.3°F).

Average pressure in October
Billings, MT

Average pressure in October - Billings, MT
  • Average pressure in October: 30"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).

Average wind speed in October
Billings, MT

Average wind speed in October - Billings, MT
  • Average wind speed in October: 9.1mph

The windiest month (with the highest average wind speed) is January (9.9mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).

Average humidity in October
Billings, MT

Average humidity in October - Billings, MT
  • Average humidity in October: 55%

The month with the highest relative humidity is January (76%).
The month with the lowest relative humidity is August (40%).

Average rainfall in October
Billings, MT

Average rainfall in October - Billings, MT
  • Average rainfall in October: 1.3"

The wettest month (with the highest rainfall) is May (2.13").
The driest month (with the least rainfall) is July (0.71").

Average rainfall days in October
Billings, MT

Average rainfall days in October - Billings, MT
  • Average rainfall days in October: 11 days

The month with the highest number of rainy days is May (17.6 days).
The month with the least rainy days is January (6.3 days).

Average snowfall in October
Billings, MT

Average snowfall in October - Billings, MT
  • Average snowfall in October: 1.85"

The month with the highest snowfall is February (6.5").
The months with the least snowfall are June, July and August (0").

Average snowfall days in October
Billings, MT

Average snowfall days in October - Billings, MT
  • Average snowfall days in October: 2.7 days

The month with the highest number of snowfall days is February (13.3 days).
The months with the least snowfall days are June, July and August (0 days).

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

Average daylight in October / Average sunshine in October - Billings, 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 2min

The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 12min).

Average sunshine days in October
Billings, MT

Average sunshine days in October - Billings, MT
  • Average sunshine days in October: 16.2 days

The month with the most sunshine days is September (18.8 days).
The month with the least sunshine days is April (9.9 days).

Average UV index in October
Billings, MT

Average UV index in October - Billings, MT
  • Average UV index in October: 3

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

Average cloud cover in October
Billings, MT

Average cloud cover in October - Billings, MT
  • Average cloud cover in October: 30

The month with the most cloud cover is February (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 15).

Average visibility in October
Billings, MT

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

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

Billings, Montana, USA

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