January weather forecast
Mission, OR

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Weather in January

January, like December, in Mission, Oregon, is a wintry winter month, with an average temperature ranging between min 28.6°F (-1.9°C) and max 39.7°F (4.3°C).

Temperature

January notes an average high-temperature of a still cold 39.7°F (4.3°C), subtly differing from December's 37.9°F (3.3°C). The average temperature drops to a freezing cold 28.6°F (-1.9°C) during the night in the month of January.

Humidity

With an average relative humidity of 79%, January is the most humid month.

Rainfall

In January, the rain falls for 13.6 days. Throughout January, 1.46" (37mm) of precipitation is accumulated. Throughout the year, there are 132.7 rainfall days, and 12.91" (328mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through April, September, November and December. In Mission, during January, snow falls for 3.7 days and regularly aggregates up to 1.81" (46mm) of snow. Throughout the year, there are 17.5 snowfall days, and 9.41" (239mm) of snow is accumulated.

Daylight

In January, the average length of the day is 9h and 10min.
On the first day of the month, sunrise is at 7:35 am and sunset at 4:21 pm. On the last day of January, in Mission, sunrise is at 7:17 am and sunset at 4:58 pm PST.

Sunshine

January and December, with an average of 5.4h of sunshine, are months with the least sunshine in Mission, Oregon.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Mission, Oregon. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for average individuals.
Note: In January, the maximum UV index of 2 translates into these guidelines:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
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Frequently asked questions

Is January cold in Mission?

Mission in January has an average high-temperature of 39.7°F (4.3°C) and an average low-temperature of 28.6°F (-1.9°C).

What is the most humid month in Mission?

The most humid month in Mission, Oregon, is January, with an average relative humidity of 79%.

What is the average humidity in January in Mission?

In Mission, the average relative humidity in January is 79%.

How many days does it rain in January in Mission?

In January, in Mission, the rain falls for 13.6 days. Throughout January, 1.46" (37mm) of precipitation is accumulated.

How many days does it snow in January in Mission?

In January, in Mission, Oregon, it is snowing for 3.7 days. Throughout January, 1.81" (46mm) of snow is accumulated.

How many hours of daylight does Mission have in January?

The average day length in January is 9h and 10min.

What time are sunrise and sunset in January in Mission?

On the first day of January in Mission, sunrise is at 7:35 am and sunset at 4:21 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 4:58 pm PST.

What are the months with the least sunshine in Mission?

January and December, with an average of 5.4h of sunshine, are months with the least sunshine in Mission, Oregon.

How many hours of sunshine does Mission have in January?

In Mission, Oregon, the average sunshine duration in January is 5.4h.

When is the lowest UV index in Mission?

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

How high is the UV index in January in Mission?

In January, the average daily maximum UV index in Mission, Oregon, is 2. A UV Index reading of 2, and below, represents a low health risk from exposure to Sun's UV rays.
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
Mission, OR

Average temperature in January - Mission, OR
  • Average high temperature in January: 39.7°F

The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is December (37.9°F).

  • Average low temperature in January: 28.6°F

The month with the highest average low temperature is August (61.7°F).
The coldest month (with the lowest average low temperature) is December (27.3°F).

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Average pressure in January
Mission, OR

Average pressure in January - Mission, OR
  • Average pressure in January: 30.2"Hg

The month with the highest atmospheric pressure is January (30.2"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).

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Average wind speed in January
Mission, OR

Average wind speed in January - Mission, OR
  • Average wind speed in January: 6.5mph

The windiest month (with the highest average wind speed) is April (8.3mph).
The calmest month (with the lowest average wind speed) is September (6.2mph).

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Average humidity in January
Mission, OR

Average humidity in January - Mission, OR
  • Average humidity in January: 79%

The month with the highest relative humidity is January (79%).
The month with the lowest relative humidity is August (38%).

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Average rainfall in January
Mission, OR

Average rainfall in January - Mission, OR
  • Average rainfall in January: 1.46"

The wettest month (with the highest rainfall) is March (1.65").
The driest month (with the least rainfall) is July (0.24").

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Average rainfall days in January
Mission, OR

Average rainfall days in January - Mission, OR
  • Average rainfall days in January: 13.6 days

The month with the highest number of rainy days is March (17.1 days).
The month with the least rainy days is August (3.6 days).

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Average snowfall in January
Mission, OR

Average snowfall in January - Mission, OR
  • Average snowfall in January: 1.81"

The month with the highest snowfall is February (3.62").
The months with the least snowfall are May, June, July, August and October (0").

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Average snowfall days in January
Mission, OR

Average snowfall days in January - Mission, OR
  • Average snowfall days in January: 3.7 days

The month with the highest number of snowfall days is December (5.5 days).
The months with the least snowfall days are May, June, July, August and October (0 days).

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

Average daylight in January / Average sunshine in January - Mission, 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: 5h and 2min

The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The months with the least sunshine are January and December (Average sunshine: 5h and 24min).

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Average sunshine days in January
Mission, OR

Average sunshine days in January - Mission, OR
  • Average sunshine days in January: 14.3 days

The month with the most sunshine days is July (24.4 days).
The month with the least sunshine days is March (11.7 days).

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Average UV index in January
Mission, OR

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

The month with the highest UV index is July (UV index 7).
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
Mission, OR

Average cloud cover in January - Mission, OR
  • Average cloud cover in January: 43

The month with the most cloud cover is February (Cloud cover 44).
The month with the least cloud cover is August (Cloud cover 9).

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Average visibility in January
Mission, OR

Average visibility in January - Mission, OR
  • Average visibility in January: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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Mission, Oregon, USA

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