January weather forecast
Lyons, CO

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Weather in January

January, like December, in Lyons, Colorado, is an icy winter month, with an average temperature fluctuating between 19°F (-7.2°C) and 36.7°F (2.6°C).

Temperature

January is marked by an average high-temperature of a still icy 36.7°F (2.6°C), almost identical to the preceding month. In Lyons, the expected average low-temperature for January is a freezing cold 19°F (-7.2°C).

Humidity

In Lyons, the average relative humidity in January is 68%.

Rainfall

The month with the least rainfall is January, when the rain falls for 5.4 days and typically collects 0.55" (14mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In Lyons, during January, snow falls for 9 days and regularly aggregates up to 4.02" (102mm) of snow. Throughout the year, there are 53.5 snowfall days, and 42.36" (1076mm) of snow is accumulated.

Daylight

In Lyons, the average length of the day in January is 9h and 42min.
On the first day of January, sunrise is at 7:23 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 5:17 pm MST.

Sunshine

In January, the average sunshine is 7h.

UV index

January, February, October through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for average individuals.
Note: A daily high UV index of 2 in January leads to these guidelines:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.

Frequently asked questions

How cold is January?

In January, the average high-temperature and low-temperature are 36.7°F (2.6°C) and 19°F (-7.2°C) respectively.

What is the average humidity in January?

In Lyons, the average relative humidity in January is 68%.

What is the driest month?

The month with the least rainfall is January, when the rain falls for 5.4 days and typically collects 0.55" (14mm) of precipitation.

How many days does it rain in January?

In Lyons, during January, the rain falls for 5.4 days and regularly aggregates up to 0.55" (14mm) of precipitation.

How many days does it snow in January?

In Lyons, during January, snow falls for 9 days and regularly aggregates up to 4.02" (102mm) of snow.

How many hours of daylight does Lyons have in January?

In Lyons, the average day length in January is 9h and 42min.

What time are sunrise and sunset in January?

On the first day of January, sunrise is at 7:23 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 5:17 pm MST.

How many hours of sunshine does Lyons have in January?

The average sunshine duration in January is 7h.

What are the months with the lowest UV index?

January, February, October through December, with an average maximum UV index of 2, are months with the lowest UV index.

How high is the UV index in January?

In January, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a low health risk 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
Lyons, CO

Average temperature in January - Lyons, CO
  • Average high temperature in January: 36.7°F

The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is December (35.4°F).

  • Average low temperature in January: 19°F

The month with the highest average low temperature is July (54.5°F).
The coldest month (with the lowest average low temperature) is December (17.6°F).

Average pressure in January
Lyons, CO

Average pressure in January - Lyons, CO
  • Average pressure in January: 30.15"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The months with the lowest atmospheric pressure are April and June (29.91"Hg).

Average wind speed in January
Lyons, CO

Average wind speed in January - Lyons, CO
  • Average wind speed in January: 7.3mph

The windiest month (with the highest average wind speed) is January (7.3mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

Average humidity in January
Lyons, CO

Average humidity in January - Lyons, CO
  • Average humidity in January: 68%

The month with the highest relative humidity is February (71%).
The months with the lowest relative humidity are June, August and September (46%).

Average rainfall in January
Lyons, CO

Average rainfall in January - Lyons, CO
  • Average rainfall in January: 0.55"

The wettest month (with the highest rainfall) is May (2.72").
The driest month (with the least rainfall) is January (0.55").

Average rainfall days in January
Lyons, CO

Average rainfall days in January - Lyons, CO
  • Average rainfall days in January: 5.4 days

The month with the highest number of rainy days is July (20.4 days).
The month with the least rainy days is November (3.6 days).

Average snowfall in January
Lyons, CO

Average snowfall in January - Lyons, CO
  • Average snowfall in January: 4.02"

The month with the highest snowfall is April (8.39").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in January
Lyons, CO

Average snowfall days in January - Lyons, CO
  • Average snowfall days in January: 9 days

The month with the highest number of snowfall days is February (11 days).
The months with the least snowfall days are June, July and August (0 days).

Average daylight in January /
Average sunshine in January
Lyons, CO

Average daylight in January / Average sunshine in January - Lyons, CO
  • 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 24min).

  • Average sunshine in January: 7h and 0min

The months with the most sunshine are June and July (Average sunshine: 11h and 42min).
The month with the least sunshine is February (Average sunshine: 6h and 36min).

Average sunshine days in January
Lyons, CO

Average sunshine days in January - Lyons, CO
  • Average sunshine days in January: 20.4 days

The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is July (7.3 days).

Average UV index in January
Lyons, CO

Average UV index in January - Lyons, CO
  • Average UV index in January: 2

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, October, November and December (UV index 2).

Average cloud cover in January
Lyons, CO

Average cloud cover in January - Lyons, CO
  • Average cloud cover in January: 22

The months with the most cloud cover are April and May (Cloud cover 28).
The months with the least cloud cover are June and September (Cloud cover 17).

Average visibility in January
Lyons, CO

Average visibility in January - Lyons, CO
  • 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).

Lyons, Colorado, USA

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