January weather forecast and climate
Gallatin Gateway, MT

January, like December, is another subzero cold winter month in Gallatin Gateway, Montana, with temperature in the range of an average high of 27°F (-2.8°C) and an average low of 12°F (-11.1°C).

Temperature

In Gallatin Gateway, the average high-temperature in January is practically the same as in December - a still freezing cold 27°F (-2.8°C). In Gallatin Gateway, in January, the average low-temperature is 12°F (-11.1°C).

Humidity

The average relative humidity in Gallatin Gateway is 89%.

Rainfall

In Gallatin Gateway, it is raining for 4.4 days, with typically 1.46" (37mm) of accumulated precipitation. Throughout the year, in Gallatin Gateway, there are 131 rainfall days, and 23.15" (588mm) of precipitation is accumulated.

Snowfall

January through June, September through December are months with snowfall in Gallatin Gateway. In Gallatin Gateway, Montana, snow falls for 19 days, with typically accumulated 11.97" (304mm) of snow. In Gallatin Gateway, during the entire year, snow falls for 122.8 days, and aggregates up to 91.1" (2314mm) of snow.

Daylight

In Gallatin Gateway, the average length of the day in January is 9.2h.

Sunshine

January and February, with an average of 4.5h of sunshine, are months with the least sunshine.

UV index

Months with the lowest UV index are January through March, November and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a low health risk from the exposure to the Sun's UV rays for the average person.
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 solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

What is the temperature in January in Gallatin Gateway?

The average high-temperature, in January, in Gallatin Gateway, Montana, is 27°F (-2.8°C), while the average low-temperature is 12°F (-11.1°C).

What is the average humidity in January in Gallatin Gateway?

In January, the average relative humidity in Gallatin Gateway is 89%.

How much does it rain in Gallatin Gateway in January?

In Gallatin Gateway, in January, it is raining for 4.4 days, with typically 1.46" (37mm) of accumulated precipitation.

How much does it snow in Gallatin Gateway in January?

In January, in Gallatin Gateway, Montana, it is snowing for 19 days. Throughout January, 11.97" (304mm) of snow is accumulated.

What is the average length of the day in January in Gallatin Gateway?

In Gallatin Gateway, Montana, the average length of the day in January is 9.2h.

What is the month with the least sunshine in Gallatin Gateway?

Months with the least sunshine are January and February, with an average of 4.5h of sunshine.

How long on average sun shines in January in Gallatin Gateway?

In January, the average sunshine is 4.5h.

When is the lowest UV index in Gallatin Gateway?

January through March, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Gallatin Gateway.

How high is the UV index in January in Gallatin Gateway?

In January, the average daily maximum UV index in Gallatin Gateway, Montana, is 1. A UV Index value of 2, and less, symbolizes a minimal hazard to health from the exposure to the Sun's UV radiation.
Average temperature in January - Gallatin Gateway, MT
  • Average high temperature in January: -2.8°C

The warmest month (with the highest average high temperature) is July (25°C).
The month with the lowest average high temperature is December (-4°C).

  • Average low temperature in January: -11.1°C

Months with the highest average low temperature are July and August (8.3°C).
The coldest month (with the lowest average low temperature) is December (-12°C).

Average pressure in January - Gallatin Gateway, MT
  • Average pressure in January: 1022.4mbar

The month with the highest atmospheric pressure is January (1022.4mbar).
The month with the lowest atmospheric pressure is June (1012.6mbar).

Average wind speed in January - Gallatin Gateway, MT
  • Average wind speed in January: 9.9km/h

The windiest month (with the highest average wind speed) is January (9.9km/h).
The calmest month (with the lowest average wind speed) is August (7.5km/h).

Average humidity in January - Gallatin Gateway, MT
  • Average humidity in January: 89%

The month with the highest relative humidity is February (90%).
The month with the lowest relative humidity is August (51%).

Average rainfall in January - Gallatin Gateway, MT
  • Average rainfall in January: 37mm

The wettest month (with the highest rainfall) is May (72mm).
The driest month (with the least rainfall) is August (33mm).

Average rainfall days in January - Gallatin Gateway, MT
  • Average rainfall days in January: 4.4 days

The month with the highest number of rainy days is May (18.5 days).
The month with the least rainy days is January (4.4 days).

Average snowfall in January - Gallatin Gateway, MT
  • Average snowfall in January: 304mm

The month with the highest snowfall is February (394mm).
Months with the least snowfall are July and August (0mm).

Average snowfall days in January - Gallatin Gateway, MT
  • Average snowfall days in January: 19 days

The month with the highest number of snowfall days is February (20.3 days).
The month with the least snowfall days is July (0 days).

Average daylight in January / Average sunshine in January - Gallatin Gateway, MT
  • Average daylight in January: 9.2h

The month with the longest days is June (Average daylight: 15.6h).
The month with the shortest days is December (Average daylight: 8.8h).

  • Average sunshine in January: 4.5h

The month with the most sunshine is July (Average sunshine: 11.5h).
Months with the least sunshine are January and February (Average sunshine: 4.5).

Average sunshine days in January - Gallatin Gateway, MT
  • Average sunshine days in January: 11.7 days

The month with the most sunshine days is September (16.3 days).
The month with the least sunshine days is April (7 days).

Average UV index in January - Gallatin Gateway, MT
  • Average UV index in January: 1

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

Average cloud cover in January - Gallatin Gateway, MT
  • Average cloud cover in January: 56

The month with the most cloud cover is February (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 17).

Average visibility in January - Gallatin Gateway, MT
  • Average visibility in January: 6km

Months with the highest visibility are July and August (10km).
Months with the lowest visibility are January and February (6km).