January weather forecast
Denver, CO

englishespañol中文
Share
The colorful sky above the sunlit Denver city, Colorado in autumn
The colorful sky above the sunlit Denver city, Colorado in autumn

Weather in January

The weather in Denver, Colorado begins the year with winter-like conditions and typically experiences relatively mild temperatures compared to its neighbouring regions situated at similar latitudes. Noticeable periods of sunshine span over twenty-two days each month, offering moderately clear skies and opportunities for outdoor activities despite the brisk conditions. However, January's unique characteristic includes an average high of 40.5°F (4.7°C) and a low of 21.6°F (-5.8°C), accompanied by snowfall of up to 3.03" (77mm) utilizing the city's mountainous topography to its advantage. The month sees stable barometric pressure, aiding in the consistency of weather patterns throughout the month. Denver’s January weather differs from its adjacent months by featuring the coldest temperature of the year and snowfall to start the annual calendar.

Temperature

The introduction of January in Denver notes a subtle temperature variation to a still cold 40.5°F (4.7°C) from December's 39.9°F (4.4°C). During January nights, Denver witnesses a consistent average temperature of 21.6°F (-5.8°C).

Humidity

In January, the average relative humidity is 64%.

Rainfall

January and December are months with the least rain in Denver when the rain falls for 3.7 days and typically aggregates up to 0.39" (10mm) of rain.

Snowfall

January through May, October through December are months with snowfall in Denver. In Denver, in January, snow falls for 6.3 days, with typically accumulated 3.03" (77mm) of snow. In Denver, during the entire year, snow falls for 43.5 days and aggregates up to 35.67" (906mm) of snow.

Daylight

In January, the average length of the day is 9h and 44min.
On the first day of the month, sunrise is at 7:20 am and sunset at 4:45 pm. On the last day of January, sunrise is at 7:08 am and sunset at 5:17 pm MST.

Sunshine

The average sunshine in January in Denver is 7.1h.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Denver. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for the average person.
Note: The average daily UV index of 2 in January transforms into the following instructions:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
[Resources]

Frequently asked questions

How cold is January in Denver?

During January, Denver experiences an average high-temperature of 40.5°F (4.7°C) and a low-temperature of 21.6°F (-5.8°C).

What is the average humidity in January in Denver?

In Denver, Colorado, the average relative humidity in January is 64%.

What is the driest month in Denver?

The months with the least rainfall in Denver are January and December Rain falls for 3.7 days and accumulates 0.39" (10mm) of rain.

How much does it rain in Denver in January?

In Denver, in January, during 3.7 rainfall days, 0.39" (10mm) of precipitation is typically accumulated.

How many days does it snow in January in Denver?

In Denver, in January, snow falls for 6.3 days, with typically accumulated 3.03" (77mm) of snow.

How many hours of daylight does Denver have in January?

In Denver, the average day length in January is 9h and 44min.

What time are sunrise and sunset in January in Denver?

In January, on the first day of the month, sunrise is at 7:20 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 5:17 pm MST.

How long on average sun shines in January in Denver?

The average sunshine duration in January in Denver, Colorado, is 7.1h.

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

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Denver, Colorado.

How high is the UV index in January in Denver?

In January, the average daily maximum UV index in Denver, Colorado, is 2. A UV Index value of 2, and less, symbolizes a low health risk 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
Denver, CO

Average temperature in January - Denver, CO
  • Average high temperature in January: 40.5°F

The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is December (39.9°F).

  • Average low temperature in January: 21.6°F

The month with the highest average low temperature is July (59.2°F).
The coldest month (with the lowest average low temperature) is December (20.7°F).

[Resources]

Average pressure in January
Denver, CO

Average pressure in January - Denver, CO
  • 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 April (29.91"Hg).

[Resources]

Average wind speed in January
Denver, CO

Average wind speed in January - Denver, CO
  • Average wind speed in January: 6.2mph

The windiest month (with the highest average wind speed) is April (6.6mph).
The calmest months (with the lowest average wind speed) are August and September (5.7mph).

[Resources]

Average humidity in January
Denver, CO

Average humidity in January - Denver, CO
  • Average humidity in January: 64%

The month with the highest relative humidity is February (66%).
The month with the lowest relative humidity is June (41%).

[Resources]

Average rainfall in January
Denver, CO

Average rainfall in January - Denver, CO
  • Average rainfall in January: 0.39"

The wettest month (with the highest rainfall) is May (2.36").
The driest months (with the least rainfall) are January and December (0.39").

[Resources]

Average rainfall days in January
Denver, CO

Average rainfall days in January - Denver, CO
  • Average rainfall days in January: 3.7 days

The month with the highest number of rainy days is July (18.4 days).
The month with the least rainy days is January (3.7 days).

[Resources]

Average snowfall in January
Denver, CO

Average snowfall in January - Denver, CO
  • Average snowfall in January: 3.03"

The month with the highest snowfall is March (6.26").
The months with the least snowfall are June, July, August and September (0").

[Resources]

Average snowfall days in January
Denver, CO

Average snowfall days in January - Denver, CO
  • Average snowfall days in January: 6.3 days

The month with the highest number of snowfall days is February (9.3 days).
The months with the least snowfall days are June, July and August (0 days).

[Resources]

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

Average daylight in January / Average sunshine in January - Denver, CO
  • Average daylight in January: 9h and 4min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in January: 7h and 1min

The months with the most sunshine are June, July and August (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 6h and 54min).

[Resources]

Average sunshine days in January
Denver, CO

Average sunshine days in January - Denver, CO
  • Average sunshine days in January: 22.7 days

The month with the most sunshine days is November (23 days).
The month with the least sunshine days is July (5.6 days).

[Resources]

Average UV index in January
Denver, CO

Average UV index in January - Denver, CO
  • 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, November and December (UV index 2).

[Resources]

Average cloud cover in January
Denver, CO

Average cloud cover in January - Denver, CO
  • Average cloud cover in January: 20

The month with the most cloud cover is April (Cloud cover 26).
The month with the least cloud cover is September (Cloud cover 15).

[Resources]

Average visibility in January
Denver, CO

Average visibility in January - Denver, 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).

[Resources]

Denver, Colorado, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location