January weather - Winter 2025

Weather in January
Frequently asked questions
Average temperature in January
Average pressure in January
Average wind speed in January
Average humidity in January
Average rainfall in January
Average rainfall days in January
Average snowfall in January
Average snowfall days in January
Average daylight in January
Average sunshine in January
Average sunshine days in January
Average UV index in January
Average cloud cover in January
Average visibility in January

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

The beginning of January records an average high-temperature of a still chilly 49.3°F (9.6°C), almost echoing the conditions of the previous month. The average nighttime temperature lowers to a cold 35.2°F (1.8°C) throughout January.

Humidity

The months with the highest humidity in Eugene are January through March and December, with an average relative humidity of 86%.

Rainfall

In Eugene, in January, it is raining for 11 days, with typically 1.18" (30mm) of accumulated precipitation. In Eugene, during the entire year, the rain falls for 109.9 days and collects up to 10.08" (256mm) of precipitation.

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

The average length of the day in January 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

The average sunshine in January 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 value of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In January, the maximum UV index of 2 suggests this advice:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.

Updated: Jun 4, 2024 | Published by: Weather Atlas | About Us / Weather Forecasting / Data Sources

Frequently asked questions

What is the temperature in January?

The high-temperature, in January, in Eugene, is 49.3°F (9.6°C), while the low-temperature averages to 35.2°F (1.8°C).

What is the most humid month?

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

What is the average humidity in January?

The average relative humidity in January is 86%.

How many days does it rain in January?

In Eugene, in January, during 11 rainfall days, 1.18" (30mm) of precipitation is typically accumulated.

How many days does it snow in January?

In Eugene, Oregon, in January, during 1 snowfall days, 0.39" (10mm) of snow is typically accumulated.

How many hours of daylight does Eugene have in January?

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

What time are sunrise and sunset in January?

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 long on average sun shines in January?

In January, the average sunshine duration is 4.3h.

What are the months with the lowest UV index?

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

What is the UV index intensity in January?

In January, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a low health threat from exposure to the Sun's UV radiation.

Today

Tomorrow

Long-term

Year January F M A M J J A S O N D

Dec

January

Feb

Average high temperature

46.2°F 7.9°C

49.3°F 9.6°C

49.6°F 9.8°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

4.7mph 7.6km/h

4.8mph 7.7km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

Average daylight

Average sunshine

Average sunshine days

15.5

17.5

14.3

Average UV index

Average cloud cover

Average visibility

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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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).

January weather forecast
Eugene, OR

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