January weather forecast
Prospect, OR

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Weather in January

January, the same as December, in Prospect, Oregon, is a frosty winter month, with an average temperature fluctuating between 30.6°F (-0.8°C) and 44.6°F (7°C).

Temperature

January's weather records an average high-temperature of a still frosty 44.6°F (7°C), showing little deviation from December. Prospect observes an average low-temperature of 30.6°F (-0.8°C) during January.

Humidity

January is the most humid month in Prospect, with an average relative humidity of 84%.

Rainfall

In Prospect, in January, during 15 rainfall days, 3.7" (94mm) of precipitation is typically accumulated. Throughout the year, there are 140 rainfall days, and 23.78" (604mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, November and December. In Prospect, Oregon, during January, snow falls for 4.3 days and regularly aggregates up to 5.51" (140mm) of snow. In Prospect, during the entire year, snow falls for 25 days and aggregates up to 21.77" (553mm) of snow.

Daylight

The average length of the day in January is 9h and 28min.
On the first day of the month, sunrise is at 7:40 am and sunset at 4:46 pm. On the last day of January, in Prospect, sunrise is at 7:25 am and sunset at 5:21 pm PST.

Sunshine

In Prospect, the average sunshine in January is 5.1h.

UV index

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Prospect. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for the average person.
Note: In January, a daily UV index of 2 turns into the following recommendations:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
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Frequently asked questions

Is January cold in Prospect?

In Prospect, in January, the average high-temperature is 44.6°F (7°C), and the average low-temperature is 30.6°F (-0.8°C).

What is the most humid month in Prospect?

The most humid month in Prospect, Oregon, is January, with an average relative humidity of 84%.

What is the average humidity in January in Prospect?

The average relative humidity in January in Prospect is 84%.

How many days does it rain in January in Prospect?

In January, the rain falls for 15 days. Throughout January, 3.7" (94mm) of precipitation is accumulated.

How much does it snow in Prospect in January?

In Prospect, Oregon, during January, snow falls for 4.3 days and regularly aggregates up to 5.51" (140mm) of snow.

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

In Prospect, Oregon, the average day length in January is 9h and 28min.

When are sunrise and sunset in January in Prospect?

In January, on the first day of the month, sunrise is at 7:40 am and sunset at 4:46 pm. On the last day of the month, in Prospect, Oregon, sunrise is at 7:25 am and sunset at 5:21 pm PST.

How long on average sun shines in January in Prospect?

In January, the average sunshine duration in Prospect is 5.1h.

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

The months with the lowest UV index in Prospect are January through March, November and December, with an average maximum UV index of 2.

How high is the UV index in January in Prospect?

The average daily maximum UV index in January in Prospect is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to Sun's UV rays.
Average max. wind speed
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
Prospect, OR

Average temperature in January - Prospect, OR
  • Average high temperature in January: 44.6°F

The warmest month (with the highest average high temperature) is August (82°F).
The month with the lowest average high temperature is December (42.8°F).

  • Average low temperature in January: 30.6°F

The month with the highest average low temperature is August (48.6°F).
The coldest month (with the lowest average low temperature) is December (28.6°F).

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Average pressure in January
Prospect, OR

Average pressure in January - Prospect, OR
  • Average pressure in January: 30.15"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is August (29.98"Hg).

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Average wind speed in January
Prospect, OR

Average wind speed in January - Prospect, OR
  • Average wind speed in January: 5mph

The windiest month (with the highest average wind speed) is January (5mph).
The calmest month (with the lowest average wind speed) is September (3.9mph).

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Average humidity in January
Prospect, OR

Average humidity in January - Prospect, OR
  • Average humidity in January: 84%

The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is August (60%).

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Average rainfall in January
Prospect, OR

Average rainfall in January - Prospect, OR
  • Average rainfall in January: 3.7"

The wettest month (with the highest rainfall) is December (3.82").
The driest month (with the least rainfall) is July (0.24").

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Average rainfall days in January
Prospect, OR

Average rainfall days in January - Prospect, OR
  • Average rainfall days in January: 15 days

The month with the highest number of rainy days is March (18.3 days).
The month with the least rainy days is July (3.8 days).

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Average snowfall in January
Prospect, OR

Average snowfall in January - Prospect, OR
  • Average snowfall in January: 5.51"

The month with the highest snowfall is February (6.77").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in January
Prospect, OR

Average snowfall days in January - Prospect, OR
  • Average snowfall days in January: 4.3 days

The month with the highest number of snowfall days is February (6.2 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

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

Average daylight in January / Average sunshine in January - Prospect, OR
  • Average daylight in January: 9h and 3min

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in January: 5h and 1min

The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).

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Average sunshine days in January
Prospect, OR

Average sunshine days in January - Prospect, OR
  • Average sunshine days in January: 13.8 days

The month with the most sunshine days is July (25.7 days).
The month with the least sunshine days is February (10 days).

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Average UV index in January
Prospect, OR

Average UV index in January - Prospect, 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, March, November and December (UV index 2).

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Average cloud cover in January
Prospect, OR

Average cloud cover in January - Prospect, OR
  • Average cloud cover in January: 47

The month with the most cloud cover is March (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 13).

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Average visibility in January
Prospect, OR

Average visibility in January - Prospect, OR
  • Average visibility in January: 5mi

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

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Prospect, Oregon, USA

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