January weather forecast
Willamina, OR

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Weather in January

January, like December, is a frosty winter month in Willamina, Oregon, with temperature in the range of an average low of 34°F (1.1°C) and an average high of 45.1°F (7.3°C).

Temperature

At the onset of January, Willamina records an average high-temperature of a still chilly 45.1°F (7.3°C), showing little deviation from the preceding month. Throughout the month of January, the average temperature in Willamina dips to a wintry 34°F (1.1°C) at night.

Humidity

In Willamina, Oregon, the average relative humidity in January is 88%.

Rainfall

In January, the rain falls for 16.8 days. Throughout January, 2.44" (62mm) of precipitation is accumulated. In Willamina, during the entire year, the rain falls for 156 days and collects up to 15.94" (405mm) of precipitation.

Snowfall

January through March, November and December are months with snowfall in Willamina. In January, it is snowing for 1.2 days. Throughout January, 0.35" (9mm) of snow is accumulated. Throughout the year, there are 5.8 snowfall days, and 1.77" (45mm) of snow is accumulated.

Daylight

In Willamina, Oregon, the average length of the day in January is 9h and 14min.
On the first day of the month, sunrise is at 7:52 am and sunset at 4:42 pm. On the last day of January, sunrise is at 7:35 am and sunset at 5:19 pm PST.

Sunshine

The average sunshine in January in Willamina is 3.6h.

UV index

The months with the lowest UV index in Willamina, 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 minimal health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum daily UV index, 2 in January, converts into the following recommendations:
It is important to always shield children, babies, and individuals with sensitive skin from prolonged exposure to the sun. To protect against the Sun's most potent rays, avoid direct exposure around midday. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
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Frequently asked questions

What is the temperature in January in Willamina?

An average high-temperature, in January, in Willamina, is 45.1°F (7.3°C) and the average low-temperature is 34°F (1.1°C).

What is the average humidity in January in Willamina?

The average relative humidity in January in Willamina is 88%.

How many days does it rain in January in Willamina?

In Willamina, during January, the rain falls for 16.8 days and regularly aggregates up to 2.44" (62mm) of precipitation.

How much does it snow in Willamina in January?

In Willamina, Oregon, in January, during 1.2 snowfall days, 0.35" (9mm) of snow is typically accumulated.

How many hours of daylight does Willamina have in January?

The average day length in January in Willamina is 9h and 14min.

What time are sunrise and sunset in January in Willamina?

On the first day of January in Willamina, Oregon, sunrise is at 7:52 am and sunset at 4:42 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 5:19 pm PST.

How long on average sun shines in January in Willamina?

In Willamina, the average sunshine duration in January is 3.6h.

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

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 Willamina?

The average daily maximum UV index in January in Willamina is 2. A UV Index value of 2, and less, symbolizes a low health risk 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
Willamina, OR

Average temperature in January - Willamina, OR
  • Average high temperature in January: 45.1°F

The warmest month (with the highest average high temperature) is August (78.4°F).
The month with the lowest average high temperature is December (43.5°F).

  • Average low temperature in January: 34°F

The month with the highest average low temperature is August (52.3°F).
The coldest month (with the lowest average low temperature) is December (33.3°F).

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Average pressure in January
Willamina, OR

Average pressure in January - Willamina, OR
  • Average pressure in January: 30.1"Hg

The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is September (30.01"Hg).

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Average wind speed in January
Willamina, OR

Average wind speed in January - Willamina, OR
  • Average wind speed in January: 4.7mph

The windiest month (with the highest average wind speed) is March (5mph).
The calmest month (with the lowest average wind speed) is August (3.8mph).

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Average humidity in January
Willamina, OR

Average humidity in January - Willamina, OR
  • Average humidity in January: 88%

The months with the highest relative humidity are February and December (89%).
The month with the lowest relative humidity is August (71%).

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Average rainfall in January
Willamina, OR

Average rainfall in January - Willamina, OR
  • Average rainfall in January: 2.44"

The wettest month (with the highest rainfall) is December (2.56").
The driest month (with the least rainfall) is July (0.24").

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Average rainfall days in January
Willamina, OR

Average rainfall days in January - Willamina, OR
  • Average rainfall days in January: 16.8 days

The month with the highest number of rainy days is March (18.9 days).
The month with the least rainy days is August (4.8 days).

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Average snowfall in January
Willamina, OR

Average snowfall in January - Willamina, OR
  • Average snowfall in January: 0.35"

The month with the highest snowfall is February (0.94").
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
Willamina, OR

Average snowfall days in January - Willamina, OR
  • Average snowfall days in January: 1.2 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).

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

Average daylight in January / Average sunshine in January - Willamina, OR
  • Average daylight in January: 9h and 1min

The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).

  • Average sunshine in January: 3h and 4min

The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 3h and 24min).

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Average sunshine days in January
Willamina, OR

Average sunshine days in January - Willamina, OR
  • Average sunshine days in January: 11.3 days

The month with the most sunshine days is July (23.7 days).
The month with the least sunshine days is February (9.3 days).

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Average UV index in January
Willamina, OR

Average UV index in January - Willamina, OR
  • Average UV index in January: 2

The months with the highest UV index are June and July (UV index 5).
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
Willamina, OR

Average cloud cover in January - Willamina, OR
  • Average cloud cover in January: 65

The month with the most cloud cover is February (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 29).

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Average visibility in January
Willamina, OR

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

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

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Willamina, Oregon, USA

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