January weather forecast
Riverside, MT

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Weather in January

January, like December, is a freezing cold winter month in Riverside, Montana, with an average temperature varying between 6.1°F (-14.4°C) and 21.9°F (-5.6°C).

Temperature

January notes an average high-temperature of a still freezing cold 21.9°F (-5.6°C), subtly differing from December's 20.1°F (-6.6°C). Riverside's nighttime temperature in January falls to an average of 6.1°F (-14.4°C).

Humidity

The average relative humidity in January is 94%.

Rainfall

In January, the rain falls for 2.2 days. Throughout January, 2.09" (53mm) of precipitation is accumulated. In Riverside, during the entire year, the rain falls for 109.2 days and collects up to 23.15" (588mm) of precipitation.

Snowfall

January through July, September through December are months with snowfall in Riverside. In January, in Riverside, it is snowing for 22.8 days. Throughout January, 17.36" (441mm) of snow is accumulated. In Riverside, Montana, during the entire year, snow falls for 159.3 days and aggregates up to 120.47" (3060mm) of snow.

Daylight

In January, the average length of the day is 9h and 17min.
On the first day of the month, sunrise is at 8:01 am and sunset at 4:54 pm. On the last day of January, sunrise is at 7:44 am and sunset at 5:30 pm MST.

Sunshine

January, February and December, with an average of 3.3h of sunshine, are months with the least sunshine in Riverside.

UV index

January through April, October through December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for average individuals.
Note: The daily high UV index of 1 during January translates into the following recommendations:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
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Frequently asked questions

How cold is it in Riverside in January?

In Riverside, 21.9°F (-5.6°C) is the average high-temperature and 6.1°F (-14.4°C) is the average low-temperature during January.

What is the average humidity in January in Riverside?

In Riverside, Montana, the average relative humidity in January is 94%.

How many days does it rain in January in Riverside?

In Riverside, in January, during 2.2 rainfall days, 2.09" (53mm) of precipitation is typically accumulated.

How many days does it snow in January in Riverside?

In Riverside, Montana, in January, snow falls for 22.8 days, with typically accumulated 17.36" (441mm) of snow.

How many hours of daylight does Riverside have in January?

The average day length in January is 9h and 17min.

When are sunrise and sunset in January in Riverside?

In January, on the first day of the month, sunrise is at 8:01 am and sunset at 4:54 pm. On the last day of the month, in Riverside, Montana, sunrise is at 7:44 am and sunset at 5:30 pm MST.

What are the months with the least sunshine in Riverside?

January, February and December, with an average of 3.3h of sunshine, are months with the least sunshine in Riverside.

How long on average sun shines in January in Riverside?

In Riverside, Montana, the average sunshine duration in January is 3.3h.

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 in Riverside.

What is the UV index reading in January in Riverside?

In Riverside, the average daily maximum UV index in January is 1. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to Sun's UV rays.
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 January
Riverside, MT

Average temperature in January - Riverside, MT
  • Average high temperature in January: 21.9°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 January: 6.1°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).

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Average pressure in January
Riverside, MT

Average pressure in January - Riverside, MT
  • Average pressure in January: 30.24"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).

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Average wind speed in January
Riverside, MT

Average wind speed in January - Riverside, MT
  • Average wind speed in January: 6.2mph

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).

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Average humidity in January
Riverside, MT

Average humidity in January - Riverside, MT
  • Average humidity in January: 94%

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

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Average rainfall in January
Riverside, MT

Average rainfall in January - Riverside, MT
  • Average rainfall in January: 2.09"

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

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Average rainfall days in January
Riverside, MT

Average rainfall days in January - Riverside, MT
  • Average rainfall days in January: 2.2 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).

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Average snowfall in January
Riverside, MT

Average snowfall in January - Riverside, MT
  • Average snowfall in January: 17.36"

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

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Average snowfall days in January
Riverside, MT

Average snowfall days in January - Riverside, MT
  • Average snowfall days in January: 22.8 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).

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

Average daylight in January / Average sunshine in January - Riverside, MT
  • Average daylight in January: 9h and 2min

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 January: 3h 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).

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Average sunshine days in January
Riverside, MT

Average sunshine days in January - Riverside, MT
  • Average sunshine days in January: 8.6 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).

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Average UV index in January
Riverside, MT

Average UV index in January - Riverside, MT
  • Average UV index in January: 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).

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Average cloud cover in January
Riverside, MT

Average cloud cover in January - Riverside, MT
  • Average cloud cover in January: 71

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

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Average visibility in January
Riverside, MT

Average visibility in January - Riverside, MT
  • Average visibility in January: 3mi

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).

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Riverside, Montana, USA

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