January weather forecast
Eugene, OR

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Bright neon lights light up the colorful city of Eugene in Oregon,
Bright neon lights light up the colorful city of Eugene in Oregon,

Weather in January

The weather in January in Eugene, Oregon is characterized by chilly temperatures and high levels of humidity, signs of a true winter month. Despite the frosty temperatures, Eugene experiences mild snowfall with just 0.39" (10mm) on an average. The rainfall is notably high, with precipitation observed on approximately 11 days during the month. With only 4.3 hours of sunshine and reduced visibility due to overcast skies, the city lends itself to a typical winter wonderland. Comparing it with the weather in December, January is relatively colder and has shorter daylight hours.

Temperature

With the transition into January, Eugene notes an average high-temperature of a still chilly 49.3°F (9.6°C), closely resembling December. The average temperature during January nights dips to an icy 35.2°F (1.8°C).

Humidity

January through March and December, with an average relative humidity of 86%, are the most humid months.

Rainfall

In Eugene, in January, it is raining for 11 days, with typically 1.18" (30mm) of accumulated precipitation. Throughout the year, there are 109.9 rainfall days, and 10.08" (256mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through March and December. In Eugene, in January, during 1 snowfall days, 0.39" (10mm) of snow is typically accumulated. In Eugene, during the entire year, snow falls for 5 days and aggregates up to 2.36" (60mm) of snow.

Daylight

In January, the average length of the day is 9h and 20min.
On the first day of January, sunrise is at 7:47 am and sunset at 4:44 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 5:20 pm PST.

Sunshine

In January, the average sunshine is 4.3h.

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 estimate of 2, and below, represents a low health risk from exposure to the Sun's UV rays for average individuals.
Note: The UV index of 2 during January translates into the following guidance:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. When the Sun is at its strongest around midday, find shade and limit exposure. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Updated: Aug 18, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in January?

In Eugene, in January, the average high-temperature is 49.3°F (9.6°C), and the average low-temperature is 35.2°F (1.8°C).

What is the most humid month?

January through March and December, with an average relative humidity of 86%, are most humid months.

What is the average humidity in January?

The average relative humidity in January is 86%.

How much does it rain in January?

In Eugene, during January, the rain falls for 11 days and regularly aggregates up to 1.18" (30mm) of precipitation.

How many days does it snow in January?

In Eugene, during January, snow falls for 1 days and regularly aggregates up to 0.39" (10mm) of snow.

How many hours of daylight does Eugene have in January?

In January, the average day length is 9h and 20min.

When is the sunrise / sunset in January in Eugene?

In January, on the first day of the month, sunrise is at 7:47 am and sunset at 4:44 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 5:20 pm PST.

How many hours of sunshine does Eugene have in January?

In January, the average sunshine duration is 4.3h.

When is the lowest UV index?

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 Eugene, the average daily maximum UV index in January is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability 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
Eugene, OR

Average temperature in January - Eugene, OR
  • Average high temperature in January: 49.3°F

The warmest month (with the highest average high temperature) is August (81.3°F).
The month with the lowest average high temperature is December (46.2°F).

  • Average low temperature in January: 35.2°F

The month with the highest average low temperature is August (49.6°F).
The coldest month (with the lowest average low temperature) is December (33.8°F).

Average pressure in January
Eugene, OR

Average pressure in January - Eugene, OR
  • Average pressure in January: 30.12"Hg

The month with the highest atmospheric pressure is January (30.12"Hg).
The months with the lowest atmospheric pressure are August and September (30.01"Hg).

Average wind speed in January
Eugene, OR

Average wind speed in January - Eugene, OR
  • Average wind speed in January: 4.5mph

The windiest months (with the highest average wind speed) are January and March (4.5mph).
The calmest months (with the lowest average wind speed) are August and September (3.6mph).

Average humidity in January
Eugene, OR

Average humidity in January - Eugene, OR
  • Average humidity in January: 86%

The months with the highest relative humidity are January, February, March and December (86%).
The month with the lowest relative humidity is August (68%).

Average rainfall in January
Eugene, OR

Average rainfall in January - Eugene, OR
  • Average rainfall in January: 1.18"

The wettest month (with the highest rainfall) is December (1.54").
The driest month (with the least rainfall) is July (0.08").

Average rainfall days in January
Eugene, OR

Average rainfall days in January - Eugene, OR
  • Average rainfall days in January: 11 days

The month with the highest number of rainy days is December (13.4 days).
The month with the least rainy days is August (2.5 days).

Average snowfall in January
Eugene, OR

Average snowfall in January - Eugene, OR
  • Average snowfall in January: 0.39"

The month with the highest snowfall is February (1.5").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in January
Eugene, OR

Average snowfall days in January - Eugene, OR
  • Average snowfall days in January: 1 days

The month with the highest number of snowfall days is February (2.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in January /
Average sunshine in January
Eugene, OR

Average daylight in January / Average sunshine in January - Eugene, OR
  • Average daylight in January: 9h and 2min

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in January: 4h and 2min

The month with the most sunshine is August (Average sunshine: 11h and 0min).
The month with the least sunshine is February (Average sunshine: 4h and 6min).

Average sunshine days in January
Eugene, OR

Average sunshine days in January - Eugene, OR
  • Average sunshine days in January: 17.5 days

The month with the most sunshine days is August (27.3 days).
The month with the least sunshine days is February (14.3 days).

Average UV index in January
Eugene, OR

Average UV index in January - Eugene, OR
  • 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, November and December (UV index 2).

Average cloud cover in January
Eugene, OR

Average cloud cover in January - Eugene, OR
  • Average cloud cover in January: 55

The months with the most cloud cover are February and March (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 23).

Average visibility in January
Eugene, OR

Average visibility in January - Eugene, OR
  • Average visibility in January: 4mi

The months with the highest visibility are June, July, August, September and October (5mi).
The months with the lowest visibility are January, February, March, April, May, November and December (4mi).

Eugene, Oregon, USA

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