October weather forecast
Colstrip, MT

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Weather in October

As October unfolds in Colstrip, it manifests the full spirit of autumn. The mercury level lowers further than September, painting a clear picture of a plunging trend towards winter. This month becomes less wet than the preceding month with 1.14" (29mm) of rainfall and witnesses an increase in humidity. The city appears colorful with fall foliage, but people need to prepare for brisk winds. According to the data, October is the windiest month of the year.

Temperature

As September transitions into October, Colstrip sees a clear drop in the average high-temperature, declining from a warm 73.8°F (23.2°C) to a refreshing 56.1°F (13.4°C). During October nights, Colstrip witnesses a consistent average temperature of 39.6°F (4.2°C).

Humidity

In October, the average relative humidity in Colstrip, Montana, is 58%.

Rainfall

In Colstrip, in October, during 10.5 rainfall days, 1.14" (29mm) of precipitation is typically accumulated. In Colstrip, during the entire year, the rain falls for 113.9 days and collects up to 14.84" (377mm) of precipitation.

Snowfall

Months with snowfall in Colstrip are January through June, September through December. In Colstrip, in October, snow falls for 3.1 days, with typically accumulated 1.34" (34mm) of snow. Throughout the year, there are 55.2 snowfall days, and 23.5" (597mm) of snow is accumulated.

Daylight

In October, the average length of the day in Colstrip is 10h and 55min.
On the first day of the month, sunrise is at 7:05 am and sunset at 6:45 pm. On the last day of October, sunrise is at 7:46 am and sunset at 5:53 pm MDT.

Sunshine

In Colstrip, the average sunshine in October is 6.4h.

UV index

In Colstrip, Montana, the average daily maximum UV index in October is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: In October, the maximum UV index of 3 transforms into these recommendations:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
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Frequently asked questions

What is the usual temperature for Colstrip in October?

The high-temperature, in October, in Colstrip, is 56.1°F (13.4°C), while the low-temperature averages to 39.6°F (4.2°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which represents the influence of relative humidity on air temperature, in August is evaluated at 82.4°F (28°C).

What is the average humidity in October in Colstrip?

In Colstrip, the average relative humidity in October is 58%.

How much does it rain in Colstrip in October?

In Colstrip, Montana, during October, the rain falls for 10.5 days and regularly aggregates up to 1.14" (29mm) of precipitation.

How much does it snow in Colstrip in October?

In Colstrip, Montana, in October, during 3.1 snowfall days, 1.34" (34mm) of snow is typically accumulated.

How many hours of daylight does Colstrip have in October?

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

What time are sunrise and sunset in October in Colstrip?

In October, on the first day of the month, sunrise is at 7:05 am and sunset at 6:45 pm. On the last day of the month, in Colstrip, sunrise is at 7:46 am and sunset at 5:53 pm MDT.

How long on average sun shines in October in Colstrip?

The average sunshine duration in October in Colstrip, Montana, is 6.4h.

How high is the UV index in October in Colstrip?

The average daily maximum UV index in October in Colstrip is 3. A UV Index reading of 3 to 5 represents a moderate health threat from exposure to the Sun's UV radiation.
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
Colstrip, MT

Average temperature in October - Colstrip, MT
  • Average high temperature in October: 56.1°F

The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is December (30.4°F).

  • Average low temperature in October: 39.6°F

The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is January (16°F).

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Average pressure in October
Colstrip, MT

Average pressure in October - Colstrip, MT
  • Average pressure in October: 29.98"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).

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Average wind speed in October
Colstrip, MT

Average wind speed in October - Colstrip, MT
  • Average wind speed in October: 9.3mph

The windiest month (with the highest average wind speed) is April (10mph).
The calmest months (with the lowest average wind speed) are July and August (7.8mph).

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Average humidity in October
Colstrip, MT

Average humidity in October - Colstrip, MT
  • Average humidity in October: 58%

The month with the highest relative humidity is January (80%).
The month with the lowest relative humidity is August (42%).

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Average rainfall in October
Colstrip, MT

Average rainfall in October - Colstrip, MT
  • Average rainfall in October: 1.14"

The wettest month (with the highest rainfall) is May (2.56").
The driest month (with the least rainfall) is December (0.47").

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Average rainfall days in October
Colstrip, MT

Average rainfall days in October - Colstrip, MT
  • Average rainfall days in October: 10.5 days

The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is February (2.8 days).

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Average snowfall in October
Colstrip, MT

Average snowfall in October - Colstrip, MT
  • Average snowfall in October: 1.34"

The month with the highest snowfall is February (4.33").
The months with the least snowfall are July and August (0").

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Average snowfall days in October
Colstrip, MT

Average snowfall days in October - Colstrip, MT
  • Average snowfall days in October: 3.1 days

The month with the highest number of snowfall days is February (10.4 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
Colstrip, MT

Average daylight in October / Average sunshine in October - Colstrip, 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 0min).

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Average sunshine days in October
Colstrip, MT

Average sunshine days in October - Colstrip, MT
  • Average sunshine days in October: 17.3 days

The month with the most sunshine days is December (20.5 days).
The month with the least sunshine days is May (11.3 days).

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Average UV index in October
Colstrip, MT

Average UV index in October - Colstrip, 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, April, November and December (UV index 2).

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Average cloud cover in October
Colstrip, MT

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

The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 15).

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Average visibility in October
Colstrip, MT

Average visibility in October - Colstrip, 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).

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Colstrip, Montana, USA

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