January weather forecast
Carter, MT

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Weather in January

January, like December, is another subzero cold winter month in Carter, Montana, with an average temperature varying between 18.7°F (-7.4°C) and 30.9°F (-0.6°C).

Temperature

January commences with an average high-temperature of a still subzero cold 30.9°F (-0.6°C), showing little deviation from December's 29.8°F (-1.2°C). Carter's nighttime temperature in January falls to an average of 18.7°F (-7.4°C).

Humidity

January is the most humid month, with an average relative humidity of 78%.

Rainfall

In Carter, in January, during 5.3 rainfall days, 0.79" (20mm) of precipitation is typically accumulated. Throughout the year, there are 119.1 rainfall days, and 13.43" (341mm) of precipitation is accumulated.

Snowfall

January through May, September through December are months with snowfall. In Carter, in January, snow falls for 11.1 days, with typically accumulated 5.28" (134mm) of snow. Throughout the year, there are 58.3 snowfall days, and 29.37" (746mm) of snow is accumulated.

Daylight

In January, the average length of the day in Carter is 8h and 56min.
On the first day of January, sunrise is at 8:12 am and sunset at 4:41 pm. On the last day of the month, sunrise is at 7:52 am and sunset at 5:22 pm MST.

Sunshine

January, February and December, with an average of 5.5h of sunshine, are months with the least sunshine.

UV index

The months with the lowest UV index in Carter are January through March, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum UV index of 2 during January leads to these instructions:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Updated: Jul 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in Carter in January?

The average high-temperature, in January, in Carter, is 30.9°F (-0.6°C), while the average low-temperature is 18.7°F (-7.4°C).

What is the most humid month?

The most humid month is January, with an average relative humidity of 78%.

What is the average humidity in January?

The average relative humidity in January is 78%.

How much does it rain in January?

In Carter, in January, it is raining for 5.3 days, with typically 0.79" (20mm) of accumulated precipitation.

How much does it snow in January?

In Carter, during January, snow falls for 11.1 days and regularly aggregates up to 5.28" (134mm) of snow.

How many hours of daylight does Carter have in January?

In Carter, the average day length in January is 8h and 56min.

What time are sunrise and sunset in January?

On the first day of January, sunrise is at 8:12 am and sunset at 4:41 pm. On the last day of the month, sunrise is at 7:52 am and sunset at 5:22 pm MST.

What are the months with the least sunshine?

The months with the least sunshine are January, February and December, with an average of 5.5h of sunshine.

How many hours of sunshine does Carter have in January?

The average sunshine duration in January is 5.5h.

When is the lowest UV index?

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Carter.

How high is the UV index in January?

In Carter, the average daily maximum UV index in January 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
Carter, MT

Average temperature in January - Carter, MT
  • Average high temperature in January: 30.9°F

The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is December (29.8°F).

  • Average low temperature in January: 18.7°F

The month with the highest average low temperature is August (60.4°F).
The coldest month (with the lowest average low temperature) is February (18.1°F).

Average pressure in January
Carter, MT

Average pressure in January - Carter, 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
Carter, MT

Average wind speed in January - Carter, MT
  • Average wind speed in January: 10.7mph

The windiest months (with the highest average wind speed) are January and November (10.7mph).
The calmest month (with the lowest average wind speed) is August (8.1mph).

Average humidity in January
Carter, MT

Average humidity in January - Carter, MT
  • Average humidity in January: 78%

The month with the highest relative humidity is January (78%).
The month with the lowest relative humidity is August (39%).

Average rainfall in January
Carter, MT

Average rainfall in January - Carter, MT
  • Average rainfall in January: 0.79"

The wettest month (with the highest rainfall) is June (2.05").
The driest month (with the least rainfall) is December (0.67").

Average rainfall days in January
Carter, MT

Average rainfall days in January - Carter, MT
  • Average rainfall days in January: 5.3 days

The month with the highest number of rainy days is May (15.6 days).
The month with the least rainy days is January (5.3 days).

Average snowfall in January
Carter, MT

Average snowfall in January - Carter, MT
  • Average snowfall in January: 5.28"

The month with the highest snowfall is February (5.51").
The months with the least snowfall are June, July and August (0").

Average snowfall days in January
Carter, MT

Average snowfall days in January - Carter, MT
  • Average snowfall days in January: 11.1 days

The month with the highest number of snowfall days is February (12.2 days).
The months with the least snowfall days are June, July and August (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).

  • Average sunshine in January: 5h and 3min

The month with the most sunshine is July (Average sunshine: 12h and 0min).
The months with the least sunshine are January, February and December (Average sunshine: 5h and 30min).

Average sunshine days in January
Carter, MT

Average sunshine days in January - Carter, MT
  • Average sunshine days in January: 16.8 days

The month with the most sunshine days is September (19.3 days).
The month with the least sunshine days is April (11.2 days).

Average UV index in January
Carter, MT

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

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

Average cloud cover in January
Carter, MT

Average cloud cover in January - Carter, MT
  • Average cloud cover in January: 42

The month with the most cloud cover is February (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 14).

Average visibility in January
Carter, MT

Average visibility in January - Carter, 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).

Carter, Montana, USA

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