January weather forecast
Mount Olympus, UT

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Weather in January

January, like December, is another subzero cold winter month in Mount Olympus, Utah, with an average temperature fluctuating between 31.8°F (-0.1°C) and 16.9°F (-8.4°C).

Temperature

January is the coldest month, with an average high-temperature of 31.8°F (-0.1°C) and an average low-temperature of 16.9°F (-8.4°C).

Humidity

With an average relative humidity of 85%, January is the most humid month.

Rainfall

In January, the rain falls for 9.1 days. Throughout January, 2.28" (58mm) of precipitation is accumulated. Throughout the year, there are 120.5 rainfall days, and 18.66" (474mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. January is the month with the most snowfall. Snow falls for 13.8 days and accumulates 14.25" (362mm) of snow.

Daylight

In January, the average length of the day in Mount Olympus, Utah, is 9h and 40min.
On the first day of January, sunrise is at 7:50 am and sunset at 5:10 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 5:43 pm MST.

Sunshine

With an average of 5.5h of sunshine, January has the least sunshine of the year.

UV index

The average daily maximum UV index in January is 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 UV index of 2 during January translates into the following guidance:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
Updated: Aug 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the coldest in Mount Olympus?

In Mount Olympus, January is known for its average lowest temperatures, reaching a high of 31.8°F (-0.1°C) and a low of 16.9°F (-8.4°C).

How cold is it in January?

In January, in Mount Olympus, the average high-temperature is 31.8°F (-0.1°C), and the average low-temperature is 16.9°F (-8.4°C).

What is the most humid month?

With an average relative humidity of 85%, January is the most humid month.

What is the average humidity in January?

In January, the average relative humidity is 85%.

How many days does it rain in January?

In January, the rain falls for 9.1 days. Throughout January, 2.28" (58mm) of precipitation is accumulated.

When does it snow the most?

The month with the most snowfall is January, when snow falls for 13.8 days and typically aggregates up to 14.25" (362mm) of snow.

How many days does it snow in January?

In Mount Olympus, in January, during 13.8 snowfall days, 14.25" (362mm) of snow is typically accumulated.

What is the average length of the day in January in Mount Olympus?

The average day length in January in Mount Olympus is 9h and 40min.

When is the sunrise / sunset in January?

In January, on the first day of the month, sunrise is at 7:50 am and sunset at 5:10 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 5:43 pm MST.

What is the month with the least sunshine in Mount Olympus?

January has the least sunshine of the year, with an average of 5.5h of sunshine.

How many hours of sunshine does Mount Olympus have in January?

The average sunshine duration in January is 5.5h.

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 threat from 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
Mount Olympus, UT

Average temperature in January - Mount Olympus, UT
  • Average high temperature in January: 31.8°F

The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (31.8°F).

  • Average low temperature in January: 16.9°F

The month with the highest average low temperature is July (59°F).
The coldest month (with the lowest average low temperature) is January (16.9°F).

Average pressure in January
Mount Olympus, UT

Average pressure in January - Mount Olympus, UT
  • Average pressure in January: 30.27"Hg

The month with the highest atmospheric pressure is January (30.27"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).

Average wind speed in January
Mount Olympus, UT

Average wind speed in January - Mount Olympus, UT
  • Average wind speed in January: 4.7mph

The windiest month (with the highest average wind speed) is March (6.1mph).
The calmest month (with the lowest average wind speed) is January (4.7mph).

Average humidity in January
Mount Olympus, UT

Average humidity in January - Mount Olympus, UT
  • Average humidity in January: 85%

The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is July (38%).

Average rainfall in January
Mount Olympus, UT

Average rainfall in January - Mount Olympus, UT
  • Average rainfall in January: 2.28"

The wettest month (with the highest rainfall) is February (2.4").
The driest month (with the least rainfall) is June (0.67").

Average rainfall days in January
Mount Olympus, UT

Average rainfall days in January - Mount Olympus, UT
  • Average rainfall days in January: 9.1 days

The month with the highest number of rainy days is April (13.9 days).
The month with the least rainy days is June (6.9 days).

Average snowfall in January
Mount Olympus, UT

Average snowfall in January - Mount Olympus, UT
  • Average snowfall in January: 14.25"

The month with the highest snowfall is January (14.25").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in January
Mount Olympus, UT

Average snowfall days in January - Mount Olympus, UT
  • Average snowfall days in January: 13.8 days

The month with the highest number of snowfall days is January (13.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in January /
Average sunshine in January
Mount Olympus, UT

Average daylight in January / Average sunshine in January - Mount Olympus, UT
  • Average daylight in January: 9h and 4min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in January: 5h and 3min

The month with the most sunshine is August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 30min).

Average sunshine days in January
Mount Olympus, UT

Average sunshine days in January - Mount Olympus, UT
  • Average sunshine days in January: 14.7 days

The month with the most sunshine days is June (20.8 days).
The month with the least sunshine days is February (10.5 days).

Average UV index in January
Mount Olympus, UT

Average UV index in January - Mount Olympus, UT
  • Average UV index in January: 2

The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in January
Mount Olympus, UT

Average cloud cover in January - Mount Olympus, UT
  • Average cloud cover in January: 40

The month with the most cloud cover is February (Cloud cover 41).
The month with the least cloud cover is August (Cloud cover 10).

Average visibility in January
Mount Olympus, UT

Average visibility in January - Mount Olympus, 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).

Mount Olympus, Utah, USA

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