January weather forecast
Devils Tower, WY

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Weather in January

January, nestled in the heart of winter in Devils Tower, Wyoming, USA, brings about icy temperatures and a flurry of snowfall. Following December, there's a slight increase in temperature, but still, the cold embraces the city in sub-freezing temperatures. High snowfall this month, peaking at 3.31" (84mm), creates picturesque scenes but may bring about some icy conditions. This month host a period of relatively limited sunshine and daylight duration, painting a picture of long nights and brief days. Moving into February, expect a continuation of these chilly temperatures coupled with a slight augmentation in snowfall.

Temperature

With the onset of January, the average high-temperature in Devils Tower stands at a still subzero cold 31.5°F (-0.3°C), closely aligned with December's 30.9°F (-0.6°C). An average nighttime temperature of 18.5°F (-7.5°C) is recorded during January.

Humidity

With an average relative humidity of 79%, January is the most humid month.

Rainfall

January is the month with the least rainfall. Rain falls for 3 days and accumulates 0.59" (15mm) of precipitation.

Snowfall

January through May, September through December are months with snowfall. In Devils Tower, in January, snow falls for 9.7 days, with typically accumulated 3.31" (84mm) of snow. In Devils Tower, during the entire year, snow falls for 57 days and aggregates up to 36.46" (926mm) of snow.

Daylight

The average length of the day in January is 9h and 17min.
On the first day of January in Devils Tower, sunrise is at 7:35 am and sunset at 4:29 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 5:05 pm MST.

Sunshine

In January, the average sunshine in Devils Tower is 5.8h.

UV index

The months with the lowest UV index in Devils Tower are January, February, April, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In January, the UV index of 2 transforms into the following advice:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
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Frequently asked questions

How cold is January in Devils Tower?

In Devils Tower, in January, the average high-temperature is 31.5°F (-0.3°C), and the average low-temperature is 18.5°F (-7.5°C).

What is the most humid month in Devils Tower?

The most humid month is January, with an average relative humidity of 79%.

What is the average humidity in January in Devils Tower?

In January, the average relative humidity in Devils Tower, Wyoming, is 79%.

What is the driest month in Devils Tower?

The month with the least rainfall is January, when the rain falls for 3 days and typically collects 0.59" (15mm) of precipitation.

How much does it rain in Devils Tower in January?

In Devils Tower, in January, during 3 rainfall days, 0.59" (15mm) of precipitation is typically accumulated.

How many days does it snow in January in Devils Tower?

In Devils Tower, Wyoming, during January, snow falls for 9.7 days and regularly aggregates up to 3.31" (84mm) of snow.

How many hours of daylight does Devils Tower have in January?

In Devils Tower, the average day length in January is 9h and 17min.

When are sunrise and sunset in January in Devils Tower?

In January, on the first day of the month, sunrise is at 7:35 am and sunset at 4:29 pm. On the last day of the month, in Devils Tower, Wyoming, sunrise is at 7:18 am and sunset at 5:05 pm MST.

How long on average sun shines in January in Devils Tower?

In January, the average sunshine duration is 5.8h.

When is the lowest UV index in Devils Tower?

January, February, April, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Devils Tower, Wyoming.

How high is the UV index in January in Devils Tower?

In January, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a minimal hazard to health from unprotected exposure to UV radiation.
Today
Tomorrow
Long-term
YearJanuaryFMAMJJASOND
Dec
January
Feb
Average high temperature
30.9°F -0.6°C
31.5°F -0.3°C
31.1°F -0.5°C
Average low temperature
18.5°F -7.5°C
18.5°F -7.5°C
16.2°F -8.8°C
Average pressure
30.13" 765mmHg
30.14" 766mmHg
30.12" 765mmHg
Average wind speed
9.9mph 15.9km/h
10.2mph 16.4km/h
9.4mph 15.1km/h
Average max. wind speed
10.7mph 17.2km/h
10.9mph 17.5km/h
10.1mph 16.3km/h
Average wind speed gusts
18.1mph 29.1km/h
18.3mph 29.5km/h
16.1mph 25.9km/h
Average humidity
76%
79%
78%
Average rainfall
0.71" 18mm
0.59" 15mm
0.75" 19mm
Average rainfall days
3.5
3
2.9
Average snowfall
4.09" 104mm
3.31" 84mm
5.04" 128mm
Average snowfall days
9
9.7
11.2
Average daylight
8h 5min
9h 2min
10h 3min
Average sunshine
5h 4min
5h 5min
5h 4min
Average sunshine days
19.9
18.3
15.2
Average UV index
2
2
2
Average cloud cover
39%
40%
41%
Average visibility
6mi 9.7km
6mi 9.7km
6mi 9.7km

Average temperature in January
Devils Tower, WY

Average temperature in January - Devils Tower, WY
  • Average high temperature in January: 31.5°F

The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is December (30.9°F).

  • Average low temperature in January: 18.5°F

The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is February (16.2°F).

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Average pressure in January
Devils Tower, WY

Average pressure in January - Devils Tower, WY
  • Average pressure in January: 30.14"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).

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Average wind speed in January
Devils Tower, WY

Average wind speed in January - Devils Tower, WY
  • Average wind speed in January: 10.2mph

The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest month (with the lowest average wind speed) is August (8mph).

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Average humidity in January
Devils Tower, WY

Average humidity in January - Devils Tower, WY
  • Average humidity in January: 79%

The month with the highest relative humidity is January (79%).
The months with the lowest relative humidity are August and September (49%).

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Average rainfall in January
Devils Tower, WY

Average rainfall in January - Devils Tower, WY
  • Average rainfall in January: 0.59"

The wettest month (with the highest rainfall) is May (2.32").
The driest month (with the least rainfall) is January (0.59").

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Average rainfall days in January
Devils Tower, WY

Average rainfall days in January - Devils Tower, WY
  • Average rainfall days in January: 3 days

The month with the highest number of rainy days is May (15.6 days).
The month with the least rainy days is February (2.9 days).

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Average snowfall in January
Devils Tower, WY

Average snowfall in January - Devils Tower, WY
  • Average snowfall in January: 3.31"

The month with the highest snowfall is April (7.36").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in January
Devils Tower, WY

Average snowfall days in January - Devils Tower, WY
  • Average snowfall days in January: 9.7 days

The month with the highest number of snowfall days is February (11.2 days).
The months with the least snowfall days are June, July and August (0 days).

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Average daylight in January /
Average sunshine in January
Devils Tower, WY

Average daylight in January / Average sunshine in January - Devils Tower, WY
  • Average daylight in January: 9h and 2min

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

  • Average sunshine in January: 5h and 5min

The month with the most sunshine is August (Average sunshine: 11h and 42min).
The months with the least sunshine are February and December (Average sunshine: 5h and 42min).

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Average sunshine days in January
Devils Tower, WY

Average sunshine days in January - Devils Tower, WY
  • Average sunshine days in January: 18.3 days

The months with the most sunshine days are September and November (20.3 days).
The month with the least sunshine days is May (12.7 days).

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Average UV index in January
Devils Tower, WY

Average UV index in January - Devils Tower, WY
  • Average UV index in January: 2

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

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Average cloud cover in January
Devils Tower, WY

Average cloud cover in January - Devils Tower, WY
  • 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 16).

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Average visibility in January
Devils Tower, WY

Average visibility in January - Devils Tower, WY
  • 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).

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Devils Tower, Wyoming, USA

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