January weather forecast
Roanwood, MT

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Weather in January

January, like December, is a freezing cold winter month in Roanwood, Montana, with an average temperature varying between 10.9°F (-11.7°C) and 24.3°F (-4.3°C).

Temperature

At the onset of January, Roanwood records an average high-temperature of a still subzero cold 24.3°F (-4.3°C), showing little deviation from the preceding month. An average low-temperature of 10.9°F (-11.7°C) is observed during the January nights.

Humidity

The most humid month is January, with an average relative humidity of 86%.

Rainfall

The months with the least rainfall in Roanwood, Montana, are January and February Rain falls for 2.5 days and accumulates 0.35" (9mm) of rain.

Snowfall

Months with snowfall are January through May, October through December. In Roanwood, during January, snow falls for 7.9 days and regularly aggregates up to 1.93" (49mm) of snow. Throughout the year, in Roanwood, there are 43.8 snowfall days, and 13.11" (333mm) of snow is accumulated.

Daylight

In Roanwood, Montana, the average length of the day in January is 8h and 48min.
On the first day of January in Roanwood, sunrise is at 7:59 am and sunset at 4:19 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 5:01 pm MST.

Sunshine

In Roanwood, the average sunshine in January is 5h.

UV index

The average daily maximum UV index in January in Roanwood is 2. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum daily UV index, 2 in January, converts into the following recommendations:
It is important to always shield children, babies, and individuals with sensitive skin from prolonged exposure to the sun. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
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Frequently asked questions

How cold is it in Roanwood in January?

In January, the average high-temperature and low-temperature are 24.3°F (-4.3°C) and 10.9°F (-11.7°C) respectively.

What is the most humid month in Roanwood?

The most humid month in Roanwood, Montana, is January, with an average relative humidity of 86%.

What is the average humidity in January in Roanwood?

In January, the average relative humidity in Roanwood, Montana, is 86%.

What is the driest month in Roanwood?

January and February are months with the least rain in Roanwood when the rain falls for 2.5 days and typically aggregates up to 0.35" (9mm) of rain.

How many days does it rain in January in Roanwood?

In Roanwood, in January, it is raining for 2.5 days, with typically 0.35" (9mm) of accumulated precipitation.

How much does it snow in Roanwood in January?

In Roanwood, in January, during 7.9 snowfall days, 1.93" (49mm) of snow is typically accumulated.

What is the average length of the day in January in Roanwood?

In Roanwood, Montana, the average day length in January is 8h and 48min.

When are sunrise and sunset in January in Roanwood?

On the first day of January in Roanwood, sunrise is at 7:59 am and sunset at 4:19 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 5:01 pm MST.

How long on average sun shines in January in Roanwood?

The average sunshine duration in January is 5h.

What is the UV index intensity in January in Roanwood?

In January, the average daily maximum UV index is 2. A UV Index 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
Roanwood, MT

Average temperature in January - Roanwood, MT
  • Average high temperature in January: 24.3°F

The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is February (23.7°F).

  • Average low temperature in January: 10.9°F

The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is February (10.2°F).

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Average pressure in January
Roanwood, MT

Average pressure in January - Roanwood, MT
  • Average pressure in January: 30.14"Hg

The month with the highest atmospheric pressure is February (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).

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Average wind speed in January
Roanwood, MT

Average wind speed in January - Roanwood, MT
  • Average wind speed in January: 9.8mph

The windiest month (with the highest average wind speed) is April (11.7mph).
The calmest month (with the lowest average wind speed) is February (8.8mph).

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Average humidity in January
Roanwood, MT

Average humidity in January - Roanwood, MT
  • Average humidity in January: 86%

The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is August (42%).

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Average rainfall in January
Roanwood, MT

Average rainfall in January - Roanwood, MT
  • Average rainfall in January: 0.35"

The wettest month (with the highest rainfall) is June (2.01").
The driest months (with the least rainfall) are January and February (0.35").

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Average rainfall days in January
Roanwood, MT

Average rainfall days in January - Roanwood, MT
  • Average rainfall days in January: 2.5 days

The month with the highest number of rainy days is May (13.8 days).
The month with the least rainy days is February (2.3 days).

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Average snowfall in January
Roanwood, MT

Average snowfall in January - Roanwood, MT
  • Average snowfall in January: 1.93"

The month with the highest snowfall is December (2.6").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in January
Roanwood, MT

Average snowfall days in January - Roanwood, MT
  • Average snowfall days in January: 7.9 days

The month with the highest number of snowfall days is February (9.2 days).
The months with the least snowfall days are June, July and August (0 days).

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

Average daylight in January / Average sunshine in January - Roanwood, MT
  • Average daylight in January: 8h and 5min

The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 18min).

  • Average sunshine in January: 5h and 0min

The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

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Average sunshine days in January
Roanwood, MT

Average sunshine days in January - Roanwood, MT
  • Average sunshine days in January: 21.1 days

The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is June (13.8 days).

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Average UV index in January
Roanwood, MT

Average UV index in January - Roanwood, MT
  • Average UV index in January: 2

The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is December (UV index 1).

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Average cloud cover in January
Roanwood, MT

Average cloud cover in January - Roanwood, MT
  • Average cloud cover in January: 47

The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 16).

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Average visibility in January
Roanwood, MT

Average visibility in January - Roanwood, MT
  • Average visibility in January: 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).

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Roanwood, Montana, USA

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