January weather forecast
Willamina, OR

Weather in January

January, like December, is another chilly winter month in Willamina, Oregon, with an average temperature varying between 45.1°F (7.3°C) and 34°F (1.1°C).

Temperature

In Willamina, the average high-temperature in January is essentially the same as in December - a still frosty 45.1°F (7.3°C). The average low-temperature, is 34°F (1.1°C).

Humidity

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

Rainfall

In Willamina, it is raining for 16.8 days, with typically 2.44" (62mm) of accumulated precipitation. Throughout the year, in Willamina, there are 156 rainfall days, and 15.94" (405mm) of precipitation is accumulated.

Snowfall

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

Daylight

In Willamina, 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 7:34 am and sunset at 5:20 pm PST.

Sunshine

In January, the average sunshine is 3.6h.

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 of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: The average daily UV index of 2 in January transform into the following instructions:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the average humidity in January in Willamina?

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

How much does it rain in Willamina in January?

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

How many days does it snow in January in Willamina?

In Willamina, during January, snow falls for 1.2 days and regularly aggregates up to 0.35" (9mm) of snow.

What is the average length of the day in January in Willamina?

In January, the average day length in Willamina is 9h and 14min.

When are sunrise and sunset in January in Willamina?

In January, on the first day of the month, sunrise is at 7:52 am and sunset at 4:42 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 5:20 pm PST.

How many hours of sunshine does Willamina have in January?

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

What are the months with the lowest UV index in Willamina?

The months with the lowest UV index in Willamina 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, Oregon, is 2. A UV Index estimate of 2, and below, represents a minimal hazard to health from exposure to the Sun's UV radiation.

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 14min

The month with the longest days is June (Average daylight: 15h and 34min).
The month with the shortest days is December (Average daylight: 8h and 50min).

  • Average sunshine in January: 3.6h

The month with the most sunshine is August (Average sunshine: 10.5h).
The month with the least sunshine is February (Average sunshine: 3.4h).

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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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