October weather forecast
McAllister, MT

Share

Weather in October

October, the same as September, in McAllister, Montana, is another chilly autumn month, with temperature in the range of an average low of 27.5°F (-2.5°C) and an average high of 45.5°F (7.5°C).

Temperature

With the transition into October, McAllister experiences a significant decrease in average high-temperatures, moving down from a comfortable 63.5°F (17.5°C) in September to a frosty 45.5°F (7.5°C). McAllister experiences an average nighttime temperature of 27.5°F (-2.5°C) in the month of October.

Humidity

In October, the average relative humidity is 70%.

Rainfall

In McAllister, during October, the rain falls for 7 days and regularly aggregates up to 1.5" (38mm) of precipitation. In McAllister, Montana, during the entire year, the rain falls for 105.7 days and collects up to 17.99" (457mm) of precipitation.

Snowfall

Months with snowfall in McAllister are January through December. In McAllister, Montana, during October, snow falls for 12.4 days and regularly aggregates up to 8.9" (226mm) of snow. Throughout the year, there are 136.1 snowfall days, and 86.93" (2208mm) of snow is accumulated.

Daylight

In October, the average length of the day in McAllister is 10h and 55min.
On the first day of October in McAllister, sunrise is at 7:26 am and sunset at 7:06 pm. On the last day of the month, sunrise is at 8:06 am and sunset at 6:14 pm MDT.

Sunshine

In McAllister, the average sunshine in October is 6.6h.

UV index

In October, the average daily maximum UV index in McAllister is 2. A UV Index reading of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: In October, the maximum UV index of 2 translates into these guidelines:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. To avoid the Sun's strongest rays, limit exposure around the mid-day period. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are October temperatures in McAllister?

The high-temperature, in October, in McAllister, is 45.5°F (7.5°C), while the low-temperature averages to 27.5°F (-2.5°C).

What is the average humidity in October in McAllister?

In October, the average relative humidity in McAllister is 70%.

How many days does it rain in October in McAllister?

In McAllister, Montana, during October, the rain falls for 7 days and regularly aggregates up to 1.5" (38mm) of precipitation.

How much does it snow in McAllister in October?

In October, in McAllister, it is snowing for 12.4 days. Throughout October, 8.9" (226mm) of snow is accumulated.

How many hours of daylight does McAllister have in October?

In McAllister, the average day length in October is 10h and 55min.

When are sunrise and sunset in October in McAllister?

In October, on the first day of the month, sunrise is at 7:26 am and sunset at 7:06 pm. On the last day of the month, sunrise is at 8:06 am and sunset at 6:14 pm MDT.

How long on average sun shines in October in McAllister?

The average sunshine duration in October in McAllister, Montana, is 6.6h.

What is the UV index intensity in October in McAllister?

The average daily maximum UV index in October in McAllister, Montana, is 2. A UV Index reading of 2, and below, represents a minimal hazard to health 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
McAllister, MT

Average temperature in October - McAllister, MT
  • Average high temperature in October: 45.5°F

The warmest month (with the highest average high temperature) is July (74.5°F).
The month with the lowest average high temperature is December (22.3°F).

  • Average low temperature in October: 27.5°F

The month with the highest average low temperature is August (46°F).
The coldest month (with the lowest average low temperature) is December (7.7°F).

Average pressure in October
McAllister, MT

Average pressure in October - McAllister, 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).

Average wind speed in October
McAllister, MT

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

The windiest month (with the highest average wind speed) is January (7.1mph).
The calmest month (with the lowest average wind speed) is August (5mph).

Average humidity in October
McAllister, MT

Average humidity in October - McAllister, MT
  • Average humidity in October: 70%

The month with the highest relative humidity is February (90%).
The month with the lowest relative humidity is August (50%).

Average rainfall in October
McAllister, MT

Average rainfall in October - McAllister, MT
  • Average rainfall in October: 1.5"

The wettest month (with the highest rainfall) is May (2.36").
The driest month (with the least rainfall) is December (0.75").

Average rainfall days in October
McAllister, MT

Average rainfall days in October - McAllister, MT
  • Average rainfall days in October: 7 days

The month with the highest number of rainy days is June (16.5 days).
The month with the least rainy days is November (2.9 days).

Average snowfall in October
McAllister, MT

Average snowfall in October - McAllister, MT
  • Average snowfall in October: 8.9"

The month with the highest snowfall is April (14.76").
The month with the least snowfall is August (0.08").

Average snowfall days in October
McAllister, MT

Average snowfall days in October - McAllister, MT
  • Average snowfall days in October: 12.4 days

The month with the highest number of snowfall days is April (19.9 days).
The month with the least snowfall days is August (0.3 days).

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

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

The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).

  • Average sunshine in October: 6h and 4min

The month with the most sunshine is July (Average sunshine: 11h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).

Average sunshine days in October
McAllister, MT

Average sunshine days in October - McAllister, MT
  • Average sunshine days in October: 15 days

The month with the most sunshine days is January (16.3 days).
The month with the least sunshine days is April (6.9 days).

Average UV index in October
McAllister, MT

Average UV index in October - McAllister, 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).

Average cloud cover in October
McAllister, MT

Average cloud cover in October - McAllister, MT
  • Average cloud cover in October: 33

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

Average visibility in October
McAllister, MT

Average visibility in October - McAllister, 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 and December (4mi).

McAllister, Montana, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location