October weather forecast
Riverside, MT

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Weather in October

October, like September, is a frosty autumn month in Riverside, Montana, with an average temperature ranging between min 26.1°F (-3.3°C) and max 44.2°F (6.8°C).

Temperature

A clear reduction in the average high-temperature marks the arrival of October, falling from a refreshing 61.9°F (16.6°C) in September to a frosty 44.2°F (6.8°C). The mean low-temperature during October nights is a subzero cold 26.1°F (-3.3°C).

Humidity

In October, the average relative humidity is 74%.

Rainfall

In Riverside, in October, it is raining for 9 days, with typically 1.46" (37mm) of accumulated precipitation. Throughout the year, there are 109.2 rainfall days, and 23.15" (588mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through July, September through December. In Riverside, Montana, in October, during 10.7 snowfall days, 7.32" (186mm) of snow is typically accumulated. Throughout the year, there are 159.3 snowfall days, and 120.47" (3060mm) of snow is accumulated.

Daylight

The average length of the day in October is 10h and 58min.
On the first day of October, sunrise is at 7:23 am and sunset at 7:04 pm. On the last day of the month, sunrise is at 8:01 am and sunset at 6:13 pm MDT.

Sunshine

The average sunshine in October is 6.4h.

UV index

The months with the lowest UV index are January through April, October through December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum daily UV index of 1 in October converts into the following recommendations:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.

Frequently asked questions

How cold does it get in October?

Riverside in October has an average high-temperature of 44.2°F (6.8°C) and an average low-temperature of 26.1°F (-3.3°C).

What is the average humidity in October?

The average relative humidity in October is 74%.

How much does it rain in October?

In Riverside, in October, during 9 rainfall days, 1.46" (37mm) of precipitation is typically accumulated.

How many days does it snow in October?

In Riverside, during October, snow falls for 10.7 days and regularly aggregates up to 7.32" (186mm) of snow.

What is the average length of the day in October in Riverside?

In October, the average day length is 10h and 58min.

What time are sunrise and sunset in October?

In October, on the first day of the month, sunrise is at 7:23 am and sunset at 7:04 pm. On the last day of the month, in Riverside, Montana, sunrise is at 8:01 am and sunset at 6:13 pm MDT.

How long on average sun shines in October?

In Riverside, the average sunshine duration in October is 6.4h.

What are the months with the lowest UV index in Riverside?

January through April, October through December, with an average maximum UV index of 1, are months with the lowest UV index.

What is the UV index intensity in October?

In October, the average daily maximum UV index is 1. A UV Index of 2, and less, symbolizes a minimal hazard to health 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
Riverside, MT

Average temperature in October - Riverside, MT
  • Average high temperature in October: 44.2°F

The warmest month (with the highest average high temperature) is July (72.9°F).
The month with the lowest average high temperature is December (20.1°F).

  • Average low temperature in October: 26.1°F

The month with the highest average low temperature is August (43.7°F).
The coldest month (with the lowest average low temperature) is December (4.8°F).

Average pressure in October
Riverside, MT

Average pressure in October - Riverside, MT
  • Average pressure in October: 30.06"Hg

The month with the highest atmospheric pressure is January (30.24"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in October
Riverside, MT

Average wind speed in October - Riverside, MT
  • Average wind speed in October: 6mph

The windiest month (with the highest average wind speed) is June (6.8mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).

Average humidity in October
Riverside, MT

Average humidity in October - Riverside, MT
  • Average humidity in October: 74%

The month with the highest relative humidity is February (95%).
The month with the lowest relative humidity is August (50%).

Average rainfall in October
Riverside, MT

Average rainfall in October - Riverside, MT
  • Average rainfall in October: 1.46"

The wettest month (with the highest rainfall) is May (2.8").
The driest month (with the least rainfall) is July (0.91").

Average rainfall days in October
Riverside, MT

Average rainfall days in October - Riverside, MT
  • Average rainfall days in October: 9 days

The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is January (2.2 days).

Average snowfall in October
Riverside, MT

Average snowfall in October - Riverside, MT
  • Average snowfall in October: 7.32"

The month with the highest snowfall is February (17.83").
The month with the least snowfall is August (0").

Average snowfall days in October
Riverside, MT

Average snowfall days in October - Riverside, MT
  • Average snowfall days in October: 10.7 days

The month with the highest number of snowfall days is March (24.4 days).
The months with the least snowfall days are July and August (0.2 days).

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

Average daylight in October / Average sunshine in October - Riverside, MT
  • Average daylight in October: 11h and 0min

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in October: 6h and 2min

The month with the most sunshine is July (Average sunshine: 11h and 48min).
The months with the least sunshine are January, February and December (Average sunshine: 3h and 18min).

Average sunshine days in October
Riverside, MT

Average sunshine days in October - Riverside, MT
  • Average sunshine days in October: 14.5 days

The months with the most sunshine days are July and September (14.7 days).
The month with the least sunshine days is February (5.3 days).

Average UV index in October
Riverside, MT

Average UV index in October - Riverside, MT
  • Average UV index in October: 1

The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 1).

Average cloud cover in October
Riverside, MT

Average cloud cover in October - Riverside, MT
  • Average cloud cover in October: 36

The month with the most cloud cover is February (Cloud cover 76).
The month with the least cloud cover is July (Cloud cover 16).

Average visibility in October
Riverside, MT

Average visibility in October - Riverside, MT
  • Average visibility in October: 5mi

The months with the highest visibility are June, July, August and September (6mi).
The months with the lowest visibility are January, February, March and December (3mi).

Riverside, Montana, USA

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