January weather forecast
Arvada, CO

Share

Weather in January

January, the same as December, is a wintry winter month in Arvada, Colorado, with an average temperature varying between 40.6°F (4.8°C) and 21.6°F (-5.8°C).

Temperature

The advent of January brings an average high-temperature of a still wintry 40.6°F (4.8°C), exhibiting minor difference from the previous month. Arvada's nights in January cool down to an average low-temperature of 21.6°F (-5.8°C).

Humidity

The average relative humidity in January in Arvada is 64%.

Rainfall

The month with the least rainfall in Arvada, Colorado, is January, when the rain falls for 4.3 days and typically collects 0.35" (9mm) of precipitation.

Snowfall

Months with snowfall in Arvada are January through May, October through December. In Arvada, in January, during 6.5 snowfall days, 2.76" (70mm) of snow is typically accumulated. In Arvada, Colorado, during the entire year, snow falls for 40.9 days and aggregates up to 32.17" (817mm) of snow.

Daylight

In January, the average length of the day in Arvada is 9h and 44min.
On the first day of January in Arvada, sunrise is at 7:21 am and sunset at 4:46 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 5:18 pm MST.

Sunshine

In Arvada, Colorado, the average sunshine in January 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. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for the average person.
Note: The maximum daily UV index of 2 in January interprets into the following recommendations:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
[Resources]

Frequently asked questions

How cold does it get in Arvada in January?

In Arvada, in January, the average high-temperature is 40.6°F (4.8°C), and the average low-temperature is 21.6°F (-5.8°C).

What is the average humidity in January in Arvada?

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

What is the driest month in Arvada?

The month with the least rainfall is January, when the rain falls for 4.3 days and typically collects 0.35" (9mm) of precipitation.

How much does it rain in Arvada in January?

In Arvada, Colorado, in January, during 4.3 rainfall days, 0.35" (9mm) of precipitation is typically accumulated.

How many days does it snow in January in Arvada?

In January, it is snowing for 6.5 days. Throughout January, 2.76" (70mm) of snow is accumulated.

What is the average length of the day in January in Arvada?

The average day length in January in Arvada is 9h and 44min.

When are sunrise and sunset in January in Arvada?

In January, on the first day of the month, sunrise is at 7:21 am and sunset at 4:46 pm. On the last day of the month, in Arvada, Colorado, sunrise is at 7:09 am and sunset at 5:18 pm MST.

How many hours of sunshine does Arvada have in January?

The average sunshine duration in January in Arvada is 7.1h.

When is the lowest UV index in Arvada?

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

How high is the UV index in January in Arvada?

In Arvada, Colorado, the average daily maximum UV index in January is 2. A UV Index of 2, and less, symbolizes a minimal hazard to health 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
Arvada, CO

Average temperature in January - Arvada, CO
  • Average high temperature in January: 40.6°F

The warmest month (with the highest average high temperature) is July (85.1°F).
The month with the lowest average high temperature is December (39.6°F).

  • Average low temperature in January: 21.6°F

The month with the highest average low temperature is July (59.5°F).
The coldest months (with the lowest average low temperature) are February and December (20.7°F).

[Resources]

Average pressure in January
Arvada, CO

Average pressure in January - Arvada, CO
  • Average pressure in January: 30.14"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are April and June (29.91"Hg).

[Resources]

Average wind speed in January
Arvada, CO

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

The windiest months (with the highest average wind speed) are March and April (6.5mph).
The calmest month (with the lowest average wind speed) is September (5.6mph).

[Resources]

Average humidity in January
Arvada, CO

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

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

[Resources]

Average rainfall in January
Arvada, CO

Average rainfall in January - Arvada, CO
  • Average rainfall in January: 0.35"

The wettest month (with the highest rainfall) is May (1.69").
The driest month (with the least rainfall) is January (0.35").

[Resources]

Average rainfall days in January
Arvada, CO

Average rainfall days in January - Arvada, CO
  • Average rainfall days in January: 4.3 days

The month with the highest number of rainy days is May (14.1 days).
The month with the least rainy days is November (3.3 days).

[Resources]

Average snowfall in January
Arvada, CO

Average snowfall in January - Arvada, CO
  • Average snowfall in January: 2.76"

The month with the highest snowfall is February (5.83").
The months with the least snowfall are June, July, August and September (0").

[Resources]

Average snowfall days in January
Arvada, CO

Average snowfall days in January - Arvada, CO
  • Average snowfall days in January: 6.5 days

The month with the highest number of snowfall days is February (8.6 days).
The months with the least snowfall days are June, July and August (0 days).

[Resources]

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

Average daylight in January / Average sunshine in January - Arvada, 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 and July (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 6h and 48min).

[Resources]

Average sunshine days in January
Arvada, CO

Average sunshine days in January - Arvada, CO
  • Average sunshine days in January: 22.3 days

The month with the most sunshine days is November (23.9 days).
The month with the least sunshine days is July (13.5 days).

[Resources]

Average UV index in January
Arvada, CO

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

The months with the highest UV index are June, July and August (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
Arvada, CO

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

The month with the most cloud cover is April (Cloud cover 25).
The month with the least cloud cover is September (Cloud cover 14).

[Resources]

Average visibility in January
Arvada, CO

Average visibility in January - Arvada, 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]

Arvada, Colorado, USA

Weather forecast for your location

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