January weather forecast
Yamhill, OR

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Weather in January

January, the same as December, in Yamhill, Oregon, is a frosty winter month, with an average temperature ranging between max 45.3°F (7.4°C) and min 34.9°F (1.6°C).

Temperature

The arrival of January records an average high-temperature of a still frosty 45.3°F (7.4°C), closely related to the 43.7°F (6.5°C) observed in December. An average temperature of 34.9°F (1.6°C) is recorded in Yamhill during the nights in January.

Humidity

The months with the highest humidity are January, February, November and December, with an average relative humidity of 87%.

Rainfall

In Yamhill, in January, it is raining for 18.4 days, with typically 3.82" (97mm) of accumulated precipitation. Throughout the year, in Yamhill, there are 186.2 rainfall days, and 27.05" (687mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Yamhill, Oregon, are January through March, November and December. In January, in Yamhill, Oregon, it is snowing for 0.9 days. Throughout January, 0.31" (8mm) of snow is accumulated. Throughout the year, there are 5 snowfall days, and 2.48" (63mm) of snow is accumulated.

Daylight

In Yamhill, Oregon, the average length of the day in January is 9h and 13min.
On the first day of January, sunrise is at 7:52 am and sunset at 4:40 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 5:17 pm PST.

Sunshine

In Yamhill, Oregon, the average sunshine in January is 3.9h.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Yamhill. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for average individuals.
Note: The maximum daily UV index of 2 in January interprets into the following recommendations:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. To protect against the Sun's most potent rays, avoid direct exposure around midday. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
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Frequently asked questions

What are the temperatures in Yamhill in January?

January temperatures in Yamhill, Oregon, vary between a high-temperature of 45.3°F (7.4°C) and a low-temperature of 34.9°F (1.6°C).

What is the most humid month in Yamhill?

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

What is the average humidity in January in Yamhill?

The average relative humidity in January in Yamhill is 87%.

How much does it rain in Yamhill in January?

In January, in Yamhill, Oregon, the rain falls for 18.4 days. Throughout January, 3.82" (97mm) of precipitation is accumulated.

How many days does it snow in January in Yamhill?

In Yamhill, Oregon, in January, during 0.9 snowfall days, 0.31" (8mm) of snow is typically accumulated.

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

The average day length in January in Yamhill, Oregon, is 9h and 13min.

What time are sunrise and sunset in January in Yamhill?

On the first day of January in Yamhill, sunrise is at 7:52 am and sunset at 4:40 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 5:17 pm PST.

How long on average sun shines in January in Yamhill?

In January, the average sunshine duration in Yamhill is 3.9h.

When is the lowest UV index in Yamhill?

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

How high is the UV index in January in Yamhill?

The average daily maximum UV index in January is 2. A UV Index value of 2, and less, symbolizes a low health threat from exposure to the Sun's 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
Yamhill, OR

Average temperature in January - Yamhill, OR
  • Average high temperature in January: 45.3°F

The warmest month (with the highest average high temperature) is August (79.9°F).
The month with the lowest average high temperature is December (43.7°F).

  • Average low temperature in January: 34.9°F

The month with the highest average low temperature is August (53.6°F).
The coldest month (with the lowest average low temperature) is December (33.6°F).

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Average pressure in January
Yamhill, OR

Average pressure in January - Yamhill, OR
  • Average pressure in January: 30.11"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are August and September (30.01"Hg).

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Average wind speed in January
Yamhill, OR

Average wind speed in January - Yamhill, OR
  • Average wind speed in January: 4.8mph

The windiest month (with the highest average wind speed) is March (5.1mph).
The calmest months (with the lowest average wind speed) are August and September (4mph).

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Average humidity in January
Yamhill, OR

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

The months with the highest relative humidity are January, February, November and December (87%).
The month with the lowest relative humidity is August (68%).

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Average rainfall in January
Yamhill, OR

Average rainfall in January - Yamhill, OR
  • Average rainfall in January: 3.82"

The wettest month (with the highest rainfall) is December (3.9").
The driest month (with the least rainfall) is August (0.39").

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Average rainfall days in January
Yamhill, OR

Average rainfall days in January - Yamhill, OR
  • Average rainfall days in January: 18.4 days

The month with the highest number of rainy days is March (21.9 days).
The months with the least rainy days are July and August (6.3 days).

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Average snowfall in January
Yamhill, OR

Average snowfall in January - Yamhill, OR
  • Average snowfall in January: 0.31"

The month with the highest snowfall is February (0.91").
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
Yamhill, OR

Average snowfall days in January - Yamhill, OR
  • Average snowfall days in January: 0.9 days

The month with the highest number of snowfall days is February (2 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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

Average daylight in January / Average sunshine in January - Yamhill, 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 5min

The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).

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Average sunshine days in January
Yamhill, OR

Average sunshine days in January - Yamhill, OR
  • Average sunshine days in January: 10.8 days

The month with the most sunshine days is July (22.3 days).
The month with the least sunshine days is March (7.4 days).

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Average UV index in January
Yamhill, OR

Average UV index in January - Yamhill, 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
Yamhill, OR

Average cloud cover in January - Yamhill, OR
  • Average cloud cover in January: 61

The month with the most cloud cover is February (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 25).

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Average visibility in January
Yamhill, OR

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

The months with the highest visibility are July, August and September (6mi).
The months with the lowest visibility are January, February, November and December (4mi).

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Yamhill, Oregon, USA

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