January weather forecast
Big Sandy, MT

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Weather in January

January, the same as December, in Big Sandy, Montana, is a freezing cold winter month, with an average temperature fluctuating between 18°F (-7.8°C) and 30.6°F (-0.8°C).

Temperature

The advent of January brings an average high-temperature of a still freezing cold 30.6°F (-0.8°C), exhibiting minor difference from the previous month. Big Sandy observes an average low-temperature of 18°F (-7.8°C) during January.

Humidity

January is the most humid month in Big Sandy, with an average relative humidity of 79%.

Rainfall

In Big Sandy, in January, during 4.4 rainfall days, 0.35" (9mm) of precipitation is typically accumulated. In Big Sandy, during the entire year, the rain falls for 91 days and collects up to 6.42" (163mm) of precipitation.

Snowfall

Months with snowfall are January through May, September through December. January is the month with the most snowfall. Snow falls for 9.2 days and accumulates 2.4" (61mm) of snow.

Daylight

In Big Sandy, the average length of the day in January is 8h and 53min.
On the first day of January, sunrise is at 8:10 am and sunset at 4:36 pm. On the last day of the month, sunrise is at 7:49 am and sunset at 5:17 pm MST.

Sunshine

In January, the average sunshine is 5.4h.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum UV index, 2 during January, leads to the following recommendations:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
Updated: Jun 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in January?

The high-temperature, in January, in Big Sandy, is 30.6°F (-0.8°C), while the low-temperature averages to 18°F (-7.8°C).

What is the most humid month?

January is the most humid month, with an average relative humidity of 79%.

What is the average humidity in January?

In January, the average relative humidity is 79%.

How many days does it rain in January?

In Big Sandy, in January, it is raining for 4.4 days, with typically 0.35" (9mm) of accumulated precipitation.

When does it snow the most?

The month with the most snowfall is January, when snow falls for 9.2 days and typically aggregates up to 2.4" (61mm) of snow.

How much does it snow in January?

In Big Sandy, in January, during 9.2 snowfall days, 2.4" (61mm) of snow is typically accumulated.

What is the average length of the day in January?

The average day length in January is 8h and 53min.

When are sunrise and sunset in January?

In January, on the first day of the month, sunrise is at 8:10 am and sunset at 4:36 pm. On the last day of the month, in Big Sandy, Montana, sunrise is at 7:49 am and sunset at 5:17 pm MST.

How long on average sun shines in January?

In January, the average sunshine duration is 5.4h.

What is the month with the lowest UV index?

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index.

What is the UV index intensity in January?

The average daily maximum UV index in January is 2. A UV Index reading of 2, and below, represents a low health risk 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 January
Big Sandy, MT

Average temperature in January - Big Sandy, MT
  • Average high temperature in January: 30.6°F

The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is December (30.2°F).

  • Average low temperature in January: 18°F

The month with the highest average low temperature is August (61.3°F).
The coldest month (with the lowest average low temperature) is February (17.8°F).

Average pressure in January
Big Sandy, MT

Average pressure in January - Big Sandy, MT
  • Average pressure in January: 30.13"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

Average wind speed in January
Big Sandy, MT

Average wind speed in January - Big Sandy, MT
  • Average wind speed in January: 10.5mph

The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is August (8.5mph).

Average humidity in January
Big Sandy, MT

Average humidity in January - Big Sandy, MT
  • Average humidity in January: 79%

The month with the highest relative humidity is January (79%).
The month with the lowest relative humidity is August (38%).

Average rainfall in January
Big Sandy, MT

Average rainfall in January - Big Sandy, MT
  • Average rainfall in January: 0.35"

The wettest month (with the highest rainfall) is June (1.22").
The driest month (with the least rainfall) is December (0.28").

Average rainfall days in January
Big Sandy, MT

Average rainfall days in January - Big Sandy, MT
  • Average rainfall days in January: 4.4 days

The month with the highest number of rainy days is May (12.5 days).
The month with the least rainy days is February (4.2 days).

Average snowfall in January
Big Sandy, MT

Average snowfall in January - Big Sandy, MT
  • Average snowfall in January: 2.4"

The month with the highest snowfall is January (2.4").
The months with the least snowfall are June, July and August (0").

Average snowfall days in January
Big Sandy, MT

Average snowfall days in January - Big Sandy, MT
  • Average snowfall days in January: 9.2 days

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

Average daylight in January /
Average sunshine in January
Big Sandy, MT

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

The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).

  • Average sunshine in January: 5h and 2min

The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is February (Average sunshine: 5h and 18min).

Average sunshine days in January
Big Sandy, MT

Average sunshine days in January - Big Sandy, MT
  • Average sunshine days in January: 20 days

The month with the most sunshine days is September (21.5 days).
The month with the least sunshine days is June (14.6 days).

Average UV index in January
Big Sandy, MT

Average UV index in January - Big Sandy, MT
  • Average UV index in January: 2

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in January
Big Sandy, MT

Average cloud cover in January - Big Sandy, MT
  • Average cloud cover in January: 42

The month with the most cloud cover is February (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 14).

Average visibility in January
Big Sandy, MT

Average visibility in January - Big Sandy, 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).

Big Sandy, Montana, USA

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