January weather forecast
Salem, OR

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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

Typical weather for Salem, Oregon in January is characterized by moderate winters with a high average temperature of 47.7°F (8.7°C) and a low of 35.2°F (1.8°C). Compared to the following month, January features higher rainfall at 3.66" (93mm). This is also the time when the city experiences the first snowfall of the year, although it is relatively light. The town becomes a winter wonderland with snowfall around 0.43" (11mm), but there is plenty of sunshine with an average of 4.3 hours per day.

Temperature

The shift into January finds Salem at an average high-temperature of a still chilly 47.7°F (8.7°C), closely comparable to December's conditions. In January, the temperature drops to an average of 35.2°F (1.8°C) at night.

Humidity

The months with the highest humidity are January, February and December, with an average relative humidity of 86%.

Rainfall

In Salem, during January, the rain falls for 17.1 days and regularly aggregates up to 3.66" (93mm) of precipitation. In Salem, during the entire year, the rain falls for 162.5 days and collects up to 25.08" (637mm) of precipitation.

Snowfall

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

Daylight

In Salem, Oregon, the average length of the day in January is 9h and 15min.
On the first day of January, 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 January, the average sunshine is 4.3h.

UV index

The months with the lowest UV index in Salem are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum daily UV index, 2 in January, converts into the following recommendations:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
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Frequently asked questions

What is the temperature in January in Salem?

In January, the average high-temperature and low-temperature are 47.7°F (8.7°C) and 35.2°F (1.8°C) respectively.

What is the most humid month in Salem?

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

What is the average humidity in January in Salem?

In January, the average relative humidity is 86%.

How many days does it rain in January in Salem?

In Salem, in January, during 17.1 rainfall days, 3.66" (93mm) of precipitation is typically accumulated.

How much does it snow in Salem in January?

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

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

In Salem, Oregon, the average day length in January is 9h and 15min.

When is the sunrise / sunset in January in Salem?

On the first day of January, 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 many hours of sunshine does Salem have in January?

The average sunshine duration in January in Salem is 4.3h.

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

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

What is the UV index reading in January in Salem?

In January, the average daily maximum UV index in Salem, Oregon, is 2. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to 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
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 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: 4h and 2min

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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Salem, Oregon, USA

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