January weather forecastArvada, WY

January

Weather in January

January in Arvada, Wyoming, is a cold winter month, with an average temperature ranging between max 32°F (0°C) and min 17.1°F (-8.3°C).

Temperature

The onset of January marks an average high-temperature of a wintry 32°F (0°C), hardly differing from December's 31.6°F (-0.2°C). The average temperature drops to a subzero cold 17.1°F (-8.3°C) during the night in the month of January.

Humidity

In January, the average relative humidity in Arvada is 75%.

Rainfall

January is the month with the least rainfall. Rain falls for 3 days and accumulates 0.24" (6mm) of precipitation.

Snowfall

Months with snowfall are January through June, September through December. In Arvada, during January, snow falls for 6 days and regularly aggregates up to 1.22" (31mm) of snow. In Arvada, during the entire year, snow falls for 44.9 days and aggregates up to 18.23" (463mm) of snow.

Daylight

The average length of the day in January in Arvada is 9h and 17min.
On the first day of January in Arvada, sunrise is at 7:41 am and sunset at 4:34 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 5:11 pm MST.

Sunshine

In January, the average sunshine in Arvada is 6.5h.

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 reading of 2, and below, represents a low health risk from unsafe exposure to UV radiation for the average person.
Note: A maximum daily UV index of 2 during January morphs into the following directions:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

January temperatures in Arvada vary between a high-temperature of 32°F (0°C) and a low-temperature of 17.1°F (-8.3°C).

In January, the average relative humidity in Arvada, Wyoming, is 75%.

January is the month with the least rainfall in Arvada. Rain falls for 3 days and accumulates 0.24" (6mm) of precipitation.

In Arvada, Wyoming, during January, the rain falls for 3 days and regularly aggregates up to 0.24" (6mm) of precipitation.

In Arvada, Wyoming, during January, snow falls for 6 days and regularly aggregates up to 1.22" (31mm) of snow.

The average day length in January in Arvada is 9h and 17min.

On the first day of January in Arvada, Wyoming, sunrise is at 7:41 am and sunset at 4:34 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 5:11 pm MST.

The average sunshine duration in January in Arvada is 6.5h.

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

In January, the average daily maximum UV index in Arvada is 2. A UV Index estimate of 2, and below, represents a low health risk from unsafe exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Arvada, WY

  • Average high temperature in January: 32°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is February (31.5°F).

  • Average low temperature in January: 17.1°F

The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is February (16.2°F).

Average pressure in January
Arvada, WY

  • Average pressure in January: 30.13"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).

Average wind speed in January
Arvada, WY

  • Average wind speed in January: 7.8mph

The windiest month (with the highest average wind speed) is April (9.4mph).
The calmest months (with the lowest average wind speed) are July and August (7.5mph).

Average humidity in January
Arvada, WY

  • Average humidity in January: 75%

The month with the highest relative humidity is February (76%).
The month with the lowest relative humidity is August (38%).

Average rainfall in January
Arvada, WY

  • Average rainfall in January: 0.24"

The wettest month (with the highest rainfall) is May (2.8").
The driest month (with the least rainfall) is January (0.24").

Average rainfall days in January
Arvada, WY

  • Average rainfall days in January: 3 days

The month with the highest number of rainy days is May (16.1 days).
The month with the least rainy days is December (2.5 days).

Average snowfall in January
Arvada, WY

  • Average snowfall in January: 1.22"

The month with the highest snowfall is April (3.46").
The months with the least snowfall are July and August (0").

Average snowfall days in January
Arvada, WY

  • Average snowfall days in January: 6 days

The month with the highest number of snowfall days is November (7.5 days).
The months with the least snowfall days are July and August (0 days).

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

  • Average daylight in January: 9h and 18min

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: 6h and 30min

The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 6h and 12min).

Average sunshine days in January
Arvada, WY

  • Average sunshine days in January: 23.5 days

The month with the most sunshine days is January (23.5 days).
The month with the least sunshine days is May (11 days).

Average UV index in January
Arvada, WY

  • Average UV index in January: 2

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in January
Arvada, WY

  • Average cloud cover in January: 32

The month with the most cloud cover is February (Cloud cover 37).
The months with the least cloud cover are July and August (Cloud cover 15).

Average visibility in January
Arvada, 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).