January weather forecast
Summit, UT

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Weather in January

January, the same as December, is an icy winter month in Summit, Utah, with an average temperature varying between 35.4°F (1.9°C) and 19°F (-7.2°C).

Temperature

In Summit, January and December are characterised by the lowest temperatures, recording an average high of 35.4°F (1.9°C).

Humidity

January is the most humid month, with an average relative humidity of 76%.

Rainfall

In Summit, Utah, in January, during 5.4 rainfall days, 0.94" (24mm) of precipitation is typically accumulated. In Summit, during the entire year, the rain falls for 78.4 days and collects up to 11.61" (295mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In January, it is snowing for 7.7 days. Throughout January, 5.98" (152mm) of snow is accumulated. Throughout the year, in Summit, there are 42.2 snowfall days, and 38.31" (973mm) of snow is accumulated.

Daylight

The average length of the day in January in Summit is 9h and 54min.
On the first day of the month, sunrise is at 7:47 am and sunset at 5:23 pm. On the last day of January, sunrise is at 7:36 am and sunset at 5:53 pm MST.

Sunshine

The average sunshine in January is 6.5h.

UV index

The months with the lowest UV index in Summit, Utah, 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 vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: The UV index of 2 during January leads to these advisories:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. A hat with a broad brim is indispensable, filtering out up to half of UV rays. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
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Frequently asked questions

What part of the year is the coldest in Summit?

Summit sees its lowest temperatures during January and December, with an average high-temperature of 35.4°F (1.9°C).

How cold is January in Summit?

The average high-temperature and low-temperature in Summit, Utah, during January are 35.4°F (1.9°C) and 19°F (-7.2°C) respectively.

What is the most humid month in Summit?

January is the most humid month, with an average relative humidity of 76%.

What is the average humidity in January in Summit?

The average relative humidity in January in Summit, Utah, is 76%.

How much does it rain in Summit in January?

In January, in Summit, the rain falls for 5.4 days. Throughout January, 0.94" (24mm) of precipitation is accumulated.

How much does it snow in Summit in January?

In Summit, Utah, in January, during 7.7 snowfall days, 5.98" (152mm) of snow is typically accumulated.

How many hours of daylight does Summit have in January?

In Summit, Utah, the average day length in January is 9h and 54min.

When is the sunrise / sunset in January in Summit?

On the first day of January, sunrise is at 7:47 am and sunset at 5:23 pm. On the last day of the month, sunrise is at 7:36 am and sunset at 5:53 pm MST.

How many hours of sunshine does Summit have in January?

In January, the average sunshine duration in Summit is 6.5h.

When is the lowest UV index in Summit?

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

What is the UV index intensity in January in Summit?

The average daily maximum UV index in January is 2. A UV Index estimate of 2, and below, represents a low health threat from unprotected exposure to 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
Summit, UT

Average temperature in January - Summit, UT
  • Average high temperature in January: 35.4°F

The warmest month (with the highest average high temperature) is July (80.8°F).
The months with the lowest average high temperature are January and December (35.4°F).

  • Average low temperature in January: 19°F

The month with the highest average low temperature is July (59°F).
The coldest month (with the lowest average low temperature) is December (18.9°F).

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Average pressure in January
Summit, UT

Average pressure in January - Summit, UT
  • Average pressure in January: 30.22"Hg

The month with the highest atmospheric pressure is January (30.22"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

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Average wind speed in January
Summit, UT

Average wind speed in January - Summit, UT
  • Average wind speed in January: 5.4mph

The windiest month (with the highest average wind speed) is June (8.1mph).
The calmest month (with the lowest average wind speed) is January (5.4mph).

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Average humidity in January
Summit, UT

Average humidity in January - Summit, UT
  • Average humidity in January: 76%

The month with the highest relative humidity is January (76%).
The month with the lowest relative humidity is June (27%).

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Average rainfall in January
Summit, UT

Average rainfall in January - Summit, UT
  • Average rainfall in January: 0.94"

The wettest month (with the highest rainfall) is July (1.34").
The driest month (with the least rainfall) is June (0.2").

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Average rainfall days in January
Summit, UT

Average rainfall days in January - Summit, UT
  • Average rainfall days in January: 5.4 days

The month with the highest number of rainy days is July (11.9 days).
The month with the least rainy days is June (2.7 days).

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Average snowfall in January
Summit, UT

Average snowfall in January - Summit, UT
  • Average snowfall in January: 5.98"

The month with the highest snowfall is December (8.19").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in January
Summit, UT

Average snowfall days in January - Summit, UT
  • Average snowfall days in January: 7.7 days

The month with the highest number of snowfall days is December (9.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in January / Average sunshine in January - Summit, UT
  • Average daylight in January: 9h and 5min

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in January: 6h and 3min

The months with the most sunshine are June and August (Average sunshine: 11h and 48min).
The month with the least sunshine is December (Average sunshine: 6h and 24min).

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Average sunshine days in January
Summit, UT

Average sunshine days in January - Summit, UT
  • Average sunshine days in January: 21.5 days

The month with the most sunshine days is June (25.8 days).
The month with the least sunshine days is July (16 days).

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Average UV index in January
Summit, UT

Average UV index in January - Summit, UT
  • 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).

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Average cloud cover in January
Summit, UT

Average cloud cover in January - Summit, UT
  • Average cloud cover in January: 29

The month with the most cloud cover is December (Cloud cover 31).
The month with the least cloud cover is June (Cloud cover 9).

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Average visibility in January
Summit, UT

Average visibility in January - Summit, UT
  • Average visibility in January: 5mi

The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).

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Summit, Utah, USA

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