January weather forecast
Sidney, MT

Weather in January

January, the same as December, in Sidney, Montana, is a freezing cold winter month, with temperature in the range of an average high of 23.4°F (-4.8°C) and an average low of 9.9°F (-12.3°C).

Temperature

The coldest month is January, with an average high-temperature of 23.4°F (-4.8°C) and an average low-temperature of 9.9°F (-12.3°C).

Humidity

January is the most humid month in Sidney, Montana, with an average relative humidity of 87%.

Rainfall

January is the month with the least rainfall in Sidney. Rain falls for 3.2 days and accumulates 0.24" (6mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall in Sidney. In Sidney, during January, snow falls for 10.6 days and regularly aggregates up to 1.3" (33mm) of snow. In Sidney, during the entire year, snow falls for 56.1 days, and aggregates up to 8.94" (227mm) of snow.

Daylight

In Sidney, the average length of the day is 8.9h.

Sunshine

In Sidney, Montana, the average sunshine in January is 4.6h.

UV index

January and February, 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 threat to health from the exposure to the Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 1 in January transform into the following instructions:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the coldest month in Sidney?

January is the coldest month in Sidney, Montana, with an average high-temperature of 23.4°F (-4.8°C) and an average low-temperature of 9.9°F (-12.3°C).

What is the most humid month in Sidney?

With an average relative humidity of 87%, January is the most humid month.

What is the average humidity in January in Sidney?

In Sidney, the average relative humidity in January is 87%.

What is the driest month in Sidney?

January is the month with the least rainfall in Sidney, Montana. Rain falls for 3.2 days and accumulates 0.24" (6mm) of precipitation.

How many days does it rain in January in Sidney?

In Sidney, during January, the rain falls for 3.2 days and regularly aggregates up to 0.24" (6mm) of precipitation.

How much does it snow in Sidney in January?

In Sidney, in January, during 10.6 snowfall days, 1.3" (33mm) of snow is typically accumulated.

How many hours of daylight does Sidney have in January?

In Sidney, Montana, the average length of the day in January is 8.9h.

How many hours of sunshine does Sidney have in January?

In January, the average sunshine is 4.6h.

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

January and February, with an average maximum UV index of 1, are months with the lowest UV index.

What is the UV index intensity in January in Sidney?

The average daily maximum UV index in January in Sidney is 1. A UV Index value of 2, and less, symbolizes a low health risk from the exposure to the Sun's UV rays.

Average temperature in January
Sidney, MT

Average temperature in January - Sidney, MT
  • Average high temperature in January: -4.8°C

The warmest month (with the highest average high temperature) is July (29°C).
The month with the lowest average high temperature is January (-4.8°C).

  • Average low temperature in January: -12.3°C

The month with the highest average low temperature is July (17.2°C).
The coldest month (with the lowest average low temperature) is January (-12.3°C).

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Average pressure in January
Sidney, MT

Average pressure in January - Sidney, MT
  • Average pressure in January: 1021mbar

The month with the highest atmospheric pressure is February (1021.5mbar).
The month with the lowest atmospheric pressure is June (1010.3mbar).

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Average wind speed in January
Sidney, MT

Average wind speed in January - Sidney, MT
  • Average wind speed in January: 16.7km/h

The windiest month (with the highest average wind speed) is April (17.9km/h).
The calmest month (with the lowest average wind speed) is February (14.8km/h).

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Average humidity in January
Sidney, MT

Average humidity in January - Sidney, MT
  • Average humidity in January: 87%

The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is August (45%).

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Average rainfall in January
Sidney, MT

Average rainfall in January - Sidney, MT
  • Average rainfall in January: 6mm

The wettest month (with the highest rainfall) is July (34mm).
The driest month (with the least rainfall) is January (6mm).

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Average rainfall days in January
Sidney, MT

Average rainfall days in January - Sidney, MT
  • Average rainfall days in January: 3.2 days

The month with the highest number of rainy days is June (11.4 days).
The months with the least rainy days are January and February (3.2 days).

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Average snowfall in January
Sidney, MT

Average snowfall in January - Sidney, MT
  • Average snowfall in January: 33mm

The month with the highest snowfall is February (45mm).
The months with the least snowfall are June, July, August and September (0mm).

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Average snowfall days in January
Sidney, MT

Average snowfall days in January - Sidney, MT
  • Average snowfall days in January: 10.6 days

The month with the highest number of snowfall days is February (12 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in January / Average sunshine in January - Sidney, MT
  • Average daylight in January: 8.9h

The month with the longest days is June (Average daylight: 15.9h).
The month with the shortest days is December (Average daylight: 8.5h).

  • Average sunshine in January: 4.6h

The month with the most sunshine is July (Average sunshine: 11.7h).
The month with the least sunshine is February (Average sunshine: 4.3h).

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Average sunshine days in January
Sidney, MT

Average sunshine days in January - Sidney, MT
  • Average sunshine days in January: 19.3 days

The month with the most sunshine days is September (20.7 days).
The month with the least sunshine days is April (15.8 days).

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Average UV index in January
Sidney, MT

Average UV index in January - Sidney, MT
  • Average UV index in January: 1

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January and February (UV index 1).

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Average cloud cover in January
Sidney, MT

Average cloud cover in January - Sidney, MT
  • Average cloud cover in January: 51

The month with the most cloud cover is February (Cloud cover 54).
The month with the least cloud cover is July (Cloud cover 18).

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Average visibility in January
Sidney, MT

Average visibility in January - Sidney, MT
  • Average visibility in January: 9km

The months with the highest visibility are May, June, July, August, September and October (10km).
The months with the lowest visibility are January, February, March, April, November and December (9km).

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