January weather forecast
Plymouth, UT

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Weather in January

January, the same as December, in Plymouth, Utah, is another subzero cold winter month, with an average temperature varying between 30.9°F (-0.6°C) and 17.8°F (-7.9°C).

Temperature

January is the coldest month, with the temperature often reaching an average high of 30.9°F (-0.6°C) and an average low of 17.8°F (-7.9°C).

Humidity

The most humid month is January, with an average relative humidity of 87%.

Rainfall

In Plymouth, in January, during 8.8 rainfall days, 1.85" (47mm) of precipitation is typically accumulated. In Plymouth, during the entire year, the rain falls for 120 days and collects up to 15.43" (392mm) of precipitation.

Snowfall

Months with snowfall are January through May, September through December. The month with the most snowfall in Plymouth is January, when snow falls for 14.8 days and typically aggregates up to 13.03" (331mm) of snow.

Daylight

The average length of the day in January in Plymouth is 9h and 33min.
On the first day of the month, sunrise is at 7:56 am and sunset at 5:07 pm. On the last day of January, sunrise is at 7:42 am and sunset at 5:41 pm MST.

Sunshine

With an average of 5.2h of sunshine, January has the least sunshine of the year in Plymouth.

UV index

The month with the lowest UV index is January, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In January, an average UV index of 1 transforms into the following instructions:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest month in Plymouth?

The coldest temperatures in Plymouth occur during January, when averages reach a peak of 30.9°F (-0.6°C) and a low of 17.8°F (-7.9°C).

How cold is January in Plymouth?

The average high-temperature, in January, in Plymouth, is 30.9°F (-0.6°C), while the average low-temperature is 17.8°F (-7.9°C).

What is the most humid month in Plymouth?

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

What is the average humidity in January in Plymouth?

The average relative humidity in January is 87%.

How much does it rain in Plymouth in January?

In Plymouth, in January, during 8.8 rainfall days, 1.85" (47mm) of precipitation is typically accumulated.

What is the snowiest month in Plymouth?

January is the month with the most snowfall in Plymouth, Utah. Snow falls for 14.8 days and accumulates 13.03" (331mm) of snow.

How much does it snow in Plymouth in January?

In Plymouth, in January, during 14.8 snowfall days, 13.03" (331mm) of snow is typically accumulated.

How many hours of daylight does Plymouth have in January?

In Plymouth, the average day length in January is 9h and 33min.

What time are sunrise and sunset in January in Plymouth?

On the first day of January in Plymouth, sunrise is at 7:56 am and sunset at 5:07 pm. On the last day of the month, sunrise is at 7:42 am and sunset at 5:41 pm MST.

What is the month with the least sunshine in Plymouth?

January has the least sunshine of the year in Plymouth, with an average of 5.2h of sunshine.

How many hours of sunshine does Plymouth have in January?

In Plymouth, Utah, the average sunshine duration in January is 5.2h.

What is the month with the lowest UV index in Plymouth?

With an average maximum UV index of 1, January is the month with the lowest UV index in Plymouth.

What is the UV index reading in January in Plymouth?

The average daily maximum UV index in January in Plymouth is 1. A UV Index of 2, and less, symbolizes a minimal health vulnerability 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
Plymouth, UT

Average temperature in January - Plymouth, UT
  • Average high temperature in January: 30.9°F

The warmest month (with the highest average high temperature) is July (86.9°F).
The month with the lowest average high temperature is January (30.9°F).

  • Average low temperature in January: 17.8°F

The month with the highest average low temperature is July (58.8°F).
The coldest month (with the lowest average low temperature) is January (17.8°F).

Average pressure in January
Plymouth, UT

Average pressure in January - Plymouth, UT
  • Average pressure in January: 30.29"Hg

The month with the highest atmospheric pressure is January (30.29"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

Average wind speed in January
Plymouth, UT

Average wind speed in January - Plymouth, UT
  • Average wind speed in January: 4.2mph

The windiest month (with the highest average wind speed) is April (6.3mph).
The calmest month (with the lowest average wind speed) is January (4.2mph).

Average humidity in January
Plymouth, UT

Average humidity in January - Plymouth, UT
  • Average humidity in January: 87%

The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is August (34%).

Average rainfall in January
Plymouth, UT

Average rainfall in January - Plymouth, UT
  • Average rainfall in January: 1.85"

The wettest month (with the highest rainfall) is February (2.05").
The driest month (with the least rainfall) is July (0.35").

Average rainfall days in January
Plymouth, UT

Average rainfall days in January - Plymouth, UT
  • Average rainfall days in January: 8.8 days

The month with the highest number of rainy days is April (15.1 days).
The month with the least rainy days is July (5.5 days).

Average snowfall in January
Plymouth, UT

Average snowfall in January - Plymouth, UT
  • Average snowfall in January: 13.03"

The month with the highest snowfall is January (13.03").
The months with the least snowfall are June, July and August (0").

Average snowfall days in January
Plymouth, UT

Average snowfall days in January - Plymouth, UT
  • Average snowfall days in January: 14.8 days

The month with the highest number of snowfall days is January (14.8 days).
The months with the least snowfall days are June, July and August (0 days).

Average daylight in January /
Average sunshine in January
Plymouth, UT

Average daylight in January / Average sunshine in January - Plymouth, UT
  • Average daylight in January: 9h and 3min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in January: 5h and 1min

The months with the most sunshine are June, July and August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 5h and 12min).

Average sunshine days in January
Plymouth, UT

Average sunshine days in January - Plymouth, UT
  • Average sunshine days in January: 14.5 days

The month with the most sunshine days is July (21.6 days).
The month with the least sunshine days is February (10.1 days).

Average UV index in January
Plymouth, UT

Average UV index in January - Plymouth, UT
  • Average UV index in January: 1

The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).

Average cloud cover in January
Plymouth, UT

Average cloud cover in January - Plymouth, UT
  • Average cloud cover in January: 44

The month with the most cloud cover is February (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 10).

Average visibility in January
Plymouth, UT

Average visibility in January - Plymouth, UT
  • Average visibility in January: 4mi

The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).

Plymouth, Utah, USA

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