January weather forecast
Oroville, WA

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Weather in January

January, the same as December, in Oroville, Washington, is another subzero cold winter month, with an average temperature varying between 14.4°F (-9.8°C) and 28.2°F (-2.1°C).

Temperature

January's advent notes a subtle adjustment in average high-temperature to a still freezing cold 28.2°F (-2.1°C) from December. Oroville encounters a steady low-temperature average of 14.4°F (-9.8°C) throughout the month of January.

Humidity

The most humid month in Oroville, Washington, is January, with an average relative humidity of 94%.

Rainfall

In Oroville, in January, during 6.8 rainfall days, 1.26" (32mm) of precipitation is typically accumulated. In Oroville, Washington, during the entire year, the rain falls for 112.2 days and collects up to 14.69" (373mm) of precipitation.

Snowfall

January through May, September through December are months with snowfall in Oroville. In Oroville, in January, snow falls for 18.3 days, with typically accumulated 9.69" (246mm) of snow. In Oroville, during the entire year, snow falls for 89.6 days and aggregates up to 47.44" (1205mm) of snow.

Daylight

In January, the average length of the day in Oroville is 8h and 48min.
On the first day of January, sunrise is at 7:51 am and sunset at 4:11 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 4:52 pm PST.

Sunshine

With an average of 3.9h of sunshine, January has the least sunshine of the year.

UV index

The months with the lowest UV index in Oroville are January, February, November and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for average individuals.
Note: During January, 1 as the daily maximum UV index converts into the following advice:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
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Frequently asked questions

How cold is January in Oroville?

January temperatures in Oroville, Washington, vary between a high-temperature of 28.2°F (-2.1°C) and a low-temperature of 14.4°F (-9.8°C).

What is the most humid month in Oroville?

With an average relative humidity of 94%, January is the most humid month in Oroville.

What is the average humidity in January in Oroville?

In January, the average relative humidity in Oroville is 94%.

How much does it rain in Oroville in January?

In January, in Oroville, Washington, the rain falls for 6.8 days. Throughout January, 1.26" (32mm) of precipitation is accumulated.

How much does it snow in Oroville in January?

In Oroville, Washington, in January, snow falls for 18.3 days, with typically accumulated 9.69" (246mm) of snow.

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

In January, the average day length in Oroville, Washington, is 8h and 48min.

When are sunrise and sunset in January in Oroville?

In January, on the first day of the month, sunrise is at 7:51 am and sunset at 4:11 pm. On the last day of the month, in Oroville, sunrise is at 7:29 am and sunset at 4:52 pm PST.

What is the month with the least sunshine in Oroville?

The month with the least sunshine is January, with an average of 3.9h of sunshine.

How long on average sun shines in January in Oroville?

The average sunshine duration in January is 3.9h.

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

January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Oroville.

How high is the UV index in January in Oroville?

In Oroville, the average daily maximum UV index in January is 1. A UV Index reading of 2, and below, represents a minimal health vulnerability from unsafe 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
Oroville, WA

Average temperature in January - Oroville, WA
  • Average high temperature in January: 28.2°F

The warmest month (with the highest average high temperature) is August (79.2°F).
The month with the lowest average high temperature is December (27°F).

  • Average low temperature in January: 14.4°F

The month with the highest average low temperature is August (49.5°F).
The coldest month (with the lowest average low temperature) is December (13.1°F).

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Average pressure in January
Oroville, WA

Average pressure in January - Oroville, WA
  • Average pressure in January: 30.18"Hg

The month with the highest atmospheric pressure is January (30.18"Hg).
The months with the lowest atmospheric pressure are June and August (29.93"Hg).

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Average wind speed in January
Oroville, WA

Average wind speed in January - Oroville, WA
  • Average wind speed in January: 3.7mph

The windiest month (with the highest average wind speed) is April (4.5mph).
The calmest months (with the lowest average wind speed) are January, February and December (3.7mph).

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Average humidity in January
Oroville, WA

Average humidity in January - Oroville, WA
  • Average humidity in January: 94%

The month with the highest relative humidity is January (94%).
The month with the lowest relative humidity is August (49%).

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Average rainfall in January
Oroville, WA

Average rainfall in January - Oroville, WA
  • Average rainfall in January: 1.26"

The wettest month (with the highest rainfall) is May (1.97").
The driest month (with the least rainfall) is August (0.47").

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Average rainfall days in January
Oroville, WA

Average rainfall days in January - Oroville, WA
  • Average rainfall days in January: 6.8 days

The month with the highest number of rainy days is May (13.8 days).
The month with the least rainy days is December (5.7 days).

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Average snowfall in January
Oroville, WA

Average snowfall in January - Oroville, WA
  • Average snowfall in January: 9.69"

The month with the highest snowfall is December (9.76").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in January
Oroville, WA

Average snowfall days in January - Oroville, WA
  • Average snowfall days in January: 18.3 days

The month with the highest number of snowfall days is January (18.3 days).
The months with the least snowfall days are June, July and August (0 days).

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Average daylight in January /
Average sunshine in January
Oroville, WA

Average daylight in January / Average sunshine in January - Oroville, WA
  • Average daylight in January: 8h and 5min

The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 18min).

  • Average sunshine in January: 3h and 5min

The month with the most sunshine is August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

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Average sunshine days in January
Oroville, WA

Average sunshine days in January - Oroville, WA
  • Average sunshine days in January: 12.5 days

The month with the most sunshine days is August (22.4 days).
The month with the least sunshine days is March (10.8 days).

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Average UV index in January
Oroville, WA

Average UV index in January - Oroville, WA
  • Average UV index in January: 1

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 1).

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Average cloud cover in January
Oroville, WA

Average cloud cover in January - Oroville, WA
  • Average cloud cover in January: 59

The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 14).

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Average visibility in January
Oroville, WA

Average visibility in January - Oroville, WA
  • Average visibility in January: 2mi

The months with the highest visibility are April, May, June, July, August and September (6mi).
The month with the lowest visibility is January (2mi).

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Oroville, Washington, USA

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