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Normal weather for Great Falls in October

It's cool in October in Great Falls with an average temperature of 14°C. Temperatures this month range from a low of 9°C to a high of 19°C. At night, you can expect temperatures between -1°C and 7°C.

In October, there is an average of 53 mm of precipitation, spread over 8 days. Of the total precipitation, about 15 cm falls as snow in October. The wind speed is around 5 Bft, mostly coming from the Southwest.

Great Falls in October

New York
Temperature Average Temperature
14°C 21°C
Sun High Temp
19°C 26°C
Sun Low Temp
9°C 16°C
Rain Total Precipitation
53 mm 119 mm
Rain Rainy Days
8 days 13 days
Snow Total Snowfall
15 cm 0 cm
Snow Snowy Days
6 days 0 days

Start of October

The month of October starts in Great Falls with cool temps, averaging around 16°C during the day and nights around 4°C. A few showers might pop up early in the month, but overall, it’ll stay mostly sunny and dry.

With the temperature difference between day and night, it’s smart to wear layers. During the day, choose a light jacket, sweater or hoodie, and long pants. For the evening and morning, we recommend a thick jacket, sweater, and long pants.

Mid October

By mid-October, daytime temps rise to around 17°C, with nights around 4°C. Not much precipitation expected during this period. It’s mostly dry and sunny.

Since it cools down at night, it’s a good idea to wear layers. During the day, choose a light jacket, sweater or hoodie, and long pants. For the evening and morning, we recommend a thick jacket, sweater, and long pants.

End of October

By the end of October, the average daytime temperature in Great Falls is around 12°C, while nighttime temps are about 1°C. A shower might pop up, but overall, the weather will be dry and sunny.

Because temperatures drop in the evening, wearing layers is recommended. During the day, go for a warm jacket, sweater or hoodie, and long pants. For the evening and morning, we recommend a heavy winter coat, sweater, long pants, beanie, and gloves.

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UV index

The UV index is a maximum of 7 this month. That's a moderate to high value on the intensity scale of 1 to 11. Unprotected skin can burn within 15-25 minutes.

Temperature records for Great Falls in October

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Daily Temperature in October in Great Falls

This chart shows the average daily high and low temperatures in October for Great Falls, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.

Daily Temperature in October in Great Falls

Daily Precipitation in October in Great Falls

The chart below shows the average daily precipitation in October for Great Falls, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed at the bottom of the chart.

A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for October, you can expect about 8 days of precipitation in Great Falls.

Daily Precipitation in October in Great Falls

Daily Snowfall in October in Great Falls

This chart shows the average daily snowfall in October in Great Falls, measured in centimeters. The bottom of the chart shows the days of the month. The data is based on historical measurements and gives an idea of the average snowfall in October.

Daily Snowfall in October in Great Falls

Daily UV Index in October in Great Falls

This chart shows the average daily UV index in October in Great Falls, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.

Daily UV Index in October in Great Falls

Temperature in October in Great Falls Over the Years

This chart shows the average temperature in October in Great Falls, measured in degrees Celsius, over the past few years.

Temperature in October in Great Falls Over the Years

Total Precipitation in October in Great Falls Over the Years

This chart shows the average precipitation in October in Great Falls, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.

Precipitation in October in Great Falls Over the Years

Snowfall in October in Great Falls per year

This chart shows the average snowfall in October in Great Falls, measured in centimeters, over the past few years.

Snowfall in October in Great Falls over the past years

Daily Climate in October for Great Falls

Click on any day in October to get detailed info about the usual weather on that day in Great Falls. Check out the historical temperatures and precipitation over the past 10 years on this day.

Weather experiences in October in Great Falls

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Average Weather in Great Falls by Month

Click on a month below to see detailed weather info for Great Falls. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.


Or check out the climate of Great Falls for all months at once

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