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
October signals a significant shift in the average high-temperature, falling from September's agreeable 70.5°F (21.4°C) to a cool 54.5°F (12.5°C). The average temperature drops to an icy 36.7°F (2.6°C) during the night in the month of October.Humidity
The average relative humidity in October in Sun River, Montana, is 61%.Rainfall
In Sun River, during October, the rain falls for 10.7 days and regularly aggregates up to 0.98" (25mm) of precipitation. Throughout the year, there are 112.8 rainfall days, and 12.95" (329mm) of precipitation is accumulated.Snowfall
January through May, September through December are months with snowfall. In Sun River, Montana, in October, snow falls for 4 days, with typically accumulated 2.99" (76mm) of snow. Throughout the year, there are 69.4 snowfall days, and 35.35" (898mm) of snow is accumulated.Daylight
The average length of the day in October in Sun River, Montana, is 10h and 50min.On the first day of October, sunrise is at 7:27 am and sunset at 7:05 pm. On the last day of the month, sunrise is at 8:10 am and sunset at 6:10 pm MDT.
Sunshine
The average sunshine in October is 6.5h.UV index
January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: A maximum high UV index of 2 in October translates into the following recommendations:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are October temperatures in Sun River?
What is the average humidity in October in Sun River?
How much does it rain in Sun River in October?
How much does it snow in Sun River in October?
How many hours of daylight does Sun River have in October?
When are sunrise and sunset in October in Sun River?
How many hours of sunshine does Sun River have in October?
When is the lowest UV index in Sun River?
How high is the UV index in October in Sun River?
Average temperature in October
Sun River, MT
- Average high temperature in October: 54.5°F
The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is December (29.5°F).
- Average low temperature in October: 36.7°F
The month with the highest average low temperature is August (56.7°F).
The coldest month (with the lowest average low temperature) is December (17.4°F).
Average pressure in October
Sun River, MT
- Average pressure in October: 30.01"Hg
The months with the highest atmospheric pressure are January and December (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in October
Sun River, MT
- Average wind speed in October: 9.4mph
The windiest months (with the highest average wind speed) are January and November (10.7mph).
The calmest month (with the lowest average wind speed) is August (7.3mph).
Average humidity in October
Sun River, MT
- Average humidity in October: 61%
The month with the highest relative humidity is January (78%).
The month with the lowest relative humidity is August (41%).
Average rainfall in October
Sun River, MT
- Average rainfall in October: 0.98"
The wettest month (with the highest rainfall) is June (2.05").
The driest months (with the least rainfall) are January and July (0.63").
Average rainfall days in October
Sun River, MT
- Average rainfall days in October: 10.7 days
The month with the highest number of rainy days is May (15.2 days).
The month with the least rainy days is January (4.8 days).
Average snowfall in October
Sun River, MT
- Average snowfall in October: 2.99"
The month with the highest snowfall is February (6.34").
The months with the least snowfall are June, July and August (0").
Average snowfall days in October
Sun River, MT
- Average snowfall days in October: 4 days
The month with the highest number of snowfall days is February (14.4 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in October /
Average sunshine in October
Sun River, 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: 11h and 54min).
The months with the least sunshine are January and December (Average sunshine: 5h and 24min).
Average sunshine days in October
Sun River, MT
- Average sunshine days in October: 16.4 days
The month with the most sunshine days is September (18.8 days).
The month with the least sunshine days is April (10.3 days).
Average UV index in October
Sun River, 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
Sun River, MT
- Average cloud cover in October: 32
The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 14).
Average visibility in October
Sun River, 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).
Sun River, Montana, USA
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