Contents
- 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
Weather in October
Temperature
With the transition into October, Great Falls experiences a significant decrease in average high-temperatures, moving down from a pleasant 71.2°F (21.8°C) in September to a cool 54.5°F (12.5°C). Throughout the nights in October, an average low-temperature of 37.8°F (3.2°C) is noted.Humidity
The average relative humidity in October is 59%.Rainfall
In October, the rain falls for 5.8 days. Throughout October, 0.28" (7mm) of precipitation is accumulated. Throughout the year, there are 68.2 rainfall days, and 4.49" (114mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, September through December. In Great Falls, during October, snow falls for 2.8 days and regularly aggregates up to 0.91" (23mm) of snow. Throughout the year, there are 45.4 snowfall days, and 11.61" (295mm) of snow is accumulated.Daylight
In Great Falls, the average length of the day in October is 10h and 50min.On the first day of the month, sunrise is at 7:25 am and sunset at 7:03 pm. On the last day of October, sunrise is at 8:08 am and sunset at 6:08 pm MDT.
Sunshine
In Great Falls, the average sunshine in October is 6.5h.UV index
The months with the lowest UV index in Great Falls are January through March, October through December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for the average person.Note: In October, the maximum UV index of 2 suggests this advice:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average October temperature in Great Falls?
What is the average humidity in October?
How much does it rain in October?
How much does it snow in October?
What is the average length of the day in October?
What time are sunrise and sunset in October in Great Falls?
How long on average sun shines in October?
What are the months with the lowest UV index?
What is the UV index intensity in October?
Average temperature in October
Great Falls, MT
- Average high temperature in October: 54.5°F
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is December (30°F).
- Average low temperature in October: 37.8°F
The month with the highest average low temperature is August (57.7°F).
The coldest months (with the lowest average low temperature) are February and December (18.3°F).
Average pressure in October
Great Falls, MT
- Average pressure in October: 30.01"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in October
Great Falls, MT
- Average wind speed in October: 9.9mph
The windiest month (with the highest average wind speed) is November (11.4mph).
The calmest month (with the lowest average wind speed) is August (7.7mph).
Average humidity in October
Great Falls, MT
- Average humidity in October: 59%
The month with the highest relative humidity is January (77%).
The month with the lowest relative humidity is August (40%).
Average rainfall in October
Great Falls, MT
- Average rainfall in October: 0.28"
The wettest month (with the highest rainfall) is June (0.87").
The driest month (with the least rainfall) is December (0.16").
Average rainfall days in October
Great Falls, MT
- Average rainfall days in October: 5.8 days
The month with the highest number of rainy days is April (9.9 days).
The month with the least rainy days is December (2.7 days).
Average snowfall in October
Great Falls, MT
- Average snowfall in October: 0.91"
The month with the highest snowfall is February (2.09").
The months with the least snowfall are June, July and August (0").
Average snowfall days in October
Great Falls, MT
- Average snowfall days in October: 2.8 days
The month with the highest number of snowfall days is February (10 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in October /
Average sunshine in October
Great Falls, MT
- Average daylight in October: 10h and 5min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in October: 6h and 3min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The months with the least sunshine are January, February and December (Average sunshine: 5h and 30min).
Average sunshine days in October
Great Falls, MT
- Average sunshine days in October: 21.9 days
The month with the most sunshine days is July (26.1 days).
The months with the least sunshine days are February and April (16.2 days).
Average UV index in October
Great Falls, MT
- Average UV index in October: 2
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in October
Great Falls, 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 13).
Average visibility in October
Great Falls, 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).
Great Falls, Montana, USA
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