January weather forecast
Salem, OR

An evening shot of the leafy town of Salem in Oregon
An evening shot of the leafy town of Salem in Oregon

Weather in January

January, the same as December, in Salem, Oregon, is a frosty winter month, with an average temperature varying between 35.2°F (1.8°C) and 47.7°F (8.7°C).

Temperature

In January, the average high-temperature is almost the same as in December - a still frosty 47.7°F (8.7°C). In January, the average low-temperature is 35.2°F (1.8°C).

Humidity

January, February and December, with an average relative humidity of 86%, are the most humid months in Salem.

Rainfall

In Salem, during 17.1 rainfall days, 3.66" (93mm) of precipitation is typically accumulated. Throughout the year, in Salem, there are 162.5 rainfall days, and 25.08" (637mm) of precipitation is accumulated.

Snowfall

January through March, November and December are months with snowfall in Salem. In Salem, snow falls for 0.9 days, with typically accumulated 0.43" (11mm) of snow. Throughout the year, there are 4.7 snowfall days, and 2.48" (63mm) of snow is accumulated.

Daylight

In Salem, the average length of the day in January is 9h and 15min.
On the first day of January in Salem, sunrise is at 7:50 am and sunset at 4:41 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 5:18 pm PST.

Sunshine

In Salem, the average sunshine in January is 4.3h.

UV index

The months with the lowest UV index in Salem, Oregon, are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for the average person.
Note: The daily maximum UV index of 2 in January interpret into the following advice:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the temperature in January in Salem?

In Salem, Oregon, in January, the average high-temperature is 47.7°F (8.7°C), and the average low-temperature is 35.2°F (1.8°C).

What are the most humid months in Salem?

January, February and December, with an average relative humidity of 86%, are most humid months.

What is the average humidity in January in Salem?

The average relative humidity in January in Salem is 86%.

How many days does it rain in January in Salem?

In Salem, Oregon, during January, the rain falls for 17.1 days and regularly aggregates up to 3.66" (93mm) of precipitation.

How much does it snow in Salem in January?

In Salem, in January, during 0.9 snowfall days, 0.43" (11mm) of snow is typically accumulated.

How many hours of daylight does Salem have in January?

The average day length in January in Salem is 9h and 15min.

What time are sunrise and sunset in January in Salem?

On the first day of January in Salem, Oregon, sunrise is at 7:50 am and sunset at 4:41 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 5:18 pm PST.

How long on average sun shines in January in Salem?

The average sunshine duration in January is 4.3h.

When is the lowest UV index in Salem?

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

What is the UV index reading in January in Salem?

In January, the average daily maximum UV index in Salem is 2. A UV Index of 2, and less, symbolizes a low health threat from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Salem, OR

Average temperature in January - Salem, OR
  • Average high temperature in January: 47.7°F

The warmest month (with the highest average high temperature) is August (82°F).
The month with the lowest average high temperature is December (45.5°F).

  • Average low temperature in January: 35.2°F

The month with the highest average low temperature is August (54.1°F).
The coldest month (with the lowest average low temperature) is December (34.5°F).

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Average pressure in January
Salem, OR

Average pressure in January - Salem, 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
Salem, OR

Average wind speed in January - Salem, OR
  • Average wind speed in January: 5.5mph

The windiest months (with the highest average wind speed) are January, March and November (5.5mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).

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Average humidity in January
Salem, OR

Average humidity in January - Salem, OR
  • Average humidity in January: 86%

The months with the highest relative humidity are January, February and December (86%).
The month with the lowest relative humidity is August (65%).

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Average rainfall in January
Salem, OR

Average rainfall in January - Salem, OR
  • Average rainfall in January: 3.66"

The wettest month (with the highest rainfall) is December (3.94").
The driest month (with the least rainfall) is July (0.28").

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Average rainfall days in January
Salem, OR

Average rainfall days in January - Salem, OR
  • Average rainfall days in January: 17.1 days

The month with the highest number of rainy days is March (19.6 days).
The month with the least rainy days is July (3.9 days).

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Average snowfall in January
Salem, OR

Average snowfall in January - Salem, OR
  • Average snowfall in January: 0.43"

The month with the highest snowfall is February (1.18").
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
Salem, OR

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

The month with the highest number of snowfall days is February (1.8 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
Salem, OR

Average daylight in January / Average sunshine in January - Salem, OR
  • Average daylight in January: 9h and 15min

The month with the longest days is June (Average daylight: 15h and 33min).
The month with the shortest days is December (Average daylight: 8h and 51min).

  • Average sunshine in January: 4h and 18min

The month with the most sunshine is August (Average sunshine: 11h and 0min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).

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Average sunshine days in January
Salem, OR

Average sunshine days in January - Salem, OR
  • Average sunshine days in January: 12.4 days

The month with the most sunshine days is July (26.3 days).
The month with the least sunshine days is March (8.8 days).

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Average UV index in January
Salem, OR

Average UV index in January - Salem, 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
Salem, OR

Average cloud cover in January - Salem, OR
  • Average cloud cover in January: 57

The month with the most cloud cover is February (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 21).

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Average visibility in January
Salem, OR

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

The months with the highest visibility are July, August and September (6mi).
The months with the lowest visibility are January, February, March, April, May, June, October, November and December (5mi).

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