January weather forecast
Roseburg, OR

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Weather in January

The chilly presence of winter is felt in Roseburg during January, with average temperatures running low and relative humidity peaking at 87%. Inclement weather comprising both snowfall of 0.28" (7mm) and rainfall of 1.22" (31mm) is observed as cold fronts pass over the region. January heralds the onset of the long winter nights, with mere 4.6 hours of sunlight typically seen. The winds, gentle at just 3.9mph (6.3km/h), further enhance the wintry vibe. Despite these conditions, Roseburg retains its appeal for those who relish the tranquillity of winter.

Temperature

The transition into January notes an average high-temperature of a still frosty 48.4°F (9.1°C), revealing a mild distinction from the 45.9°F (7.7°C) in December. The average low-temperature, in January, in Roseburg, is a cold 34.3°F (1.3°C).

Humidity

January, February and December, with an average relative humidity of 87%, are the most humid months in Roseburg.

Rainfall

In Roseburg, in January, it is raining for 12 days, with typically 1.22" (31mm) of accumulated precipitation. Throughout the year, there are 105 rainfall days, and 9.57" (243mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through March, November and December. In January, in Roseburg, Oregon, it is snowing for 0.8 days. Throughout January, 0.28" (7mm) of snow is accumulated. In Roseburg, during the entire year, snow falls for 3.8 days and aggregates up to 1.77" (45mm) of snow.

Daylight

The average length of the day in January is 9h and 25min.
On the first day of the month, sunrise is at 7:45 am and sunset at 4:48 pm. On the last day of January, sunrise is at 7:29 am and sunset at 5:23 pm PST.

Sunshine

The average sunshine in January in Roseburg, Oregon, is 4.6h.

UV index

The months with the lowest UV index in Roseburg, Oregon, are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum daily UV index of 2 in January interprets into the following recommendations:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
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Frequently asked questions

What is the average January temperature in Roseburg?

The average high-temperature, in January, in Roseburg, is 48.4°F (9.1°C), while the average low-temperature is 34.3°F (1.3°C).

What is the most humid month in Roseburg?

January, February and December, with an average relative humidity of 87%, are most humid months.

What is the average humidity in January in Roseburg?

In January, the average relative humidity in Roseburg, Oregon, is 87%.

How many days does it rain in January in Roseburg?

In Roseburg, in January, during 12 rainfall days, 1.22" (31mm) of precipitation is typically accumulated.

How much does it snow in Roseburg in January?

In January, it is snowing for 0.8 days. Throughout January, 0.28" (7mm) of snow is accumulated.

How many hours of daylight does Roseburg have in January?

The average day length in January is 9h and 25min.

When are sunrise and sunset in January in Roseburg?

In January, on the first day of the month, sunrise is at 7:45 am and sunset at 4:48 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 5:23 pm PST.

How long on average sun shines in January in Roseburg?

In Roseburg, the average sunshine duration in January is 4.6h.

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

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

How high is the UV index in January in Roseburg?

In January, the average daily maximum UV index in Roseburg, Oregon, is 2. A UV Index reading of 2, and below, represents a low health threat from exposure to the Sun's UV radiation.
Today
Tomorrow
Long-term
YearJanuaryFMAMJJASOND
Dec
January
Feb
Average high temperature
45.9°F 7.7°C
48.4°F 9.1°C
49.5°F 9.7°C
Average low temperature
33.3°F 0.7°C
34.3°F 1.3°C
33.4°F 0.8°C
Average pressure
30.11" 765mmHg
30.12" 765mmHg
30.09" 764mmHg
Average wind speed
3.7mph 6km/h
3.9mph 6.3km/h
3.7mph 6km/h
Average max. wind speed
4mph 6.4km/h
4.2mph 6.8km/h
4mph 6.4km/h
Average wind speed gusts
6.8mph 10.9km/h
7.1mph 11.4km/h
6.3mph 10.1km/h
Average humidity
87%
87%
87%
Average rainfall
1.46" 37mm
1.22" 31mm
1.34" 34mm
Average rainfall days
12.8
12
11.3
Average snowfall
0.47" 12mm
0.28" 7mm
0.39" 10mm
Average snowfall days
0.5
0.8
1.5
Average daylight
9h 0min
9h 2min
10h 4min
Average sunshine
4h 2min
4h 4min
4h 2min
Average sunshine days
16.6
17.2
14.6
Average UV index
2
2
2
Average cloud cover
56%
54%
59%
Average visibility
4mi 6.4km
4mi 6.4km
4mi 6.4km

Average temperature in January
Roseburg, OR

Average temperature in January - Roseburg, OR
  • Average high temperature in January: 48.4°F

The warmest month (with the highest average high temperature) is August (80.8°F).
The month with the lowest average high temperature is December (45.9°F).

  • Average low temperature in January: 34.3°F

The month with the highest average low temperature is August (47.8°F).
The coldest month (with the lowest average low temperature) is December (33.3°F).

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Average pressure in January
Roseburg, OR

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

The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).

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Average wind speed in January
Roseburg, OR

Average wind speed in January - Roseburg, OR
  • Average wind speed in January: 3.9mph

The windiest months (with the highest average wind speed) are January and March (3.9mph).
The calmest months (with the lowest average wind speed) are September and October (3.2mph).

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Average humidity in January
Roseburg, OR

Average humidity in January - Roseburg, OR
  • Average humidity in January: 87%

The months with the highest relative humidity are January, February and December (87%).
The months with the lowest relative humidity are July and August (71%).

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Average rainfall in January
Roseburg, OR

Average rainfall in January - Roseburg, OR
  • Average rainfall in January: 1.22"

The wettest month (with the highest rainfall) is December (1.46").
The driest month (with the least rainfall) is July (0.16").

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Average rainfall days in January
Roseburg, OR

Average rainfall days in January - Roseburg, OR
  • Average rainfall days in January: 12 days

The month with the highest number of rainy days is March (13.5 days).
The month with the least rainy days is August (3.1 days).

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Average snowfall in January
Roseburg, OR

Average snowfall in January - Roseburg, OR
  • Average snowfall in January: 0.28"

The month with the highest snowfall is November (0.51").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in January
Roseburg, OR

Average snowfall days in January - Roseburg, OR
  • Average snowfall days in January: 0.8 days

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

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

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

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in January: 4h and 4min

The month with the most sunshine is August (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 4h and 18min).

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Average sunshine days in January
Roseburg, OR

Average sunshine days in January - Roseburg, OR
  • Average sunshine days in January: 17.2 days

The month with the most sunshine days is August (25.1 days).
The month with the least sunshine days is February (14.6 days).

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Average UV index in January
Roseburg, OR

Average UV index in January - Roseburg, 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).

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Average cloud cover in January
Roseburg, OR

Average cloud cover in January - Roseburg, OR
  • Average cloud cover in January: 54

The month with the most cloud cover is March (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 26).

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Average visibility in January
Roseburg, OR

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

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

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Roseburg, Oregon, USA

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