January weather forecast
Stevenson, WA

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Weather in January

January, like December, in Stevenson, Washington, is an icy winter month, with an average temperature fluctuating between 38.8°F (3.8°C) and 28.9°F (-1.7°C).

Temperature

The advent of January brings an average high-temperature of a still wintry 38.8°F (3.8°C), exhibiting minor difference from the previous month. January nights in Stevenson observe an average temperature dip to a subzero cold 28.9°F (-1.7°C).

Humidity

The average relative humidity in January in Stevenson is 87%.

Rainfall

The month with the most rainfall is January, when the rain falls for 19.4 days and typically aggregates up to 7.48" (190mm) of precipitation.

Snowfall

Months with snowfall are January through April, November and December. January is the month with the most snowfall. Snow falls for 2.6 days and accumulates 4.33" (110mm) of snow.

Daylight

In January, the average length of the day is 9h and 10min.
On the first day of January, sunrise is at 7:48 am and sunset at 4:33 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 5:11 pm PST.

Sunshine

The average sunshine in January is 3.5h.

UV index

January is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for the average person.
Note: The maximum UV index of 1 during January translates into these guidelines:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. To protect against the Sun's most potent rays, avoid direct exposure around midday. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Updated: Jun 15, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is January?

January temperatures vary between a high-temperature of 38.8°F (3.8°C) and a low-temperature of 28.9°F (-1.7°C).

What is the average humidity in January in Stevenson?

The average relative humidity in January in Stevenson is 87%.

What is the wettest month?

The month with the most rainfall is January, when the rain falls for 19.4 days and typically aggregates up to 7.48" (190mm) of precipitation.

How much does it rain in January?

In Stevenson, during January, the rain falls for 19.4 days and regularly aggregates up to 7.48" (190mm) of precipitation.

When does it snow the most in Stevenson?

January is the month with the most snowfall. Snow falls for 2.6 days and accumulates 4.33" (110mm) of snow.

How much does it snow in January?

In January, it is snowing for 2.6 days. Throughout January, 4.33" (110mm) of snow is accumulated.

What is the average length of the day in January?

In January, the average day length in Stevenson is 9h and 10min.

What time are sunrise and sunset in January?

On the first day of January, sunrise is at 7:48 am and sunset at 4:33 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 5:11 pm PST.

How many hours of sunshine does Stevenson have in January?

In January, the average sunshine duration is 3.5h.

What is the month with the lowest UV index?

With an average maximum UV index of 1, January is the month with the lowest UV index.

What is the UV index intensity in January?

In January, the average daily maximum UV index is 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability 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
Stevenson, WA

Average temperature in January - Stevenson, WA
  • Average high temperature in January: 38.8°F

The warmest month (with the highest average high temperature) is August (76.6°F).
The month with the lowest average high temperature is December (37.2°F).

  • Average low temperature in January: 28.9°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 (27.7°F).

Average pressure in January
Stevenson, WA

Average pressure in January - Stevenson, WA
  • Average pressure in January: 30.14"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is August (29.98"Hg).

Average wind speed in January
Stevenson, WA

Average wind speed in January - Stevenson, WA
  • Average wind speed in January: 6.5mph

The windiest month (with the highest average wind speed) is January (6.5mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).

Average humidity in January
Stevenson, WA

Average humidity in January - Stevenson, WA
  • Average humidity in January: 87%

The month with the highest relative humidity is February (89%).
The months with the lowest relative humidity are July and August (66%).

Average rainfall in January
Stevenson, WA

Average rainfall in January - Stevenson, WA
  • Average rainfall in January: 7.48"

The wettest month (with the highest rainfall) is January (7.48").
The driest month (with the least rainfall) is July (0.31").

Average rainfall days in January
Stevenson, WA

Average rainfall days in January - Stevenson, WA
  • Average rainfall days in January: 19.4 days

The month with the highest number of rainy days is March (21.7 days).
The month with the least rainy days is August (5 days).

Average snowfall in January
Stevenson, WA

Average snowfall in January - Stevenson, WA
  • Average snowfall in January: 4.33"

The month with the highest snowfall is January (4.33").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in January
Stevenson, WA

Average snowfall days in January - Stevenson, WA
  • Average snowfall days in January: 2.6 days

The month with the highest number of snowfall days is February (4.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

Average daylight in January / Average sunshine in January - Stevenson, WA
  • Average daylight in January: 9h and 1min

The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 48min).

  • Average sunshine in January: 3h and 3min

The months with the most sunshine are July and August (Average sunshine: 11h and 6min).
The month with the least sunshine is February (Average sunshine: 3h and 24min).

Average sunshine days in January
Stevenson, WA

Average sunshine days in January - Stevenson, WA
  • Average sunshine days in January: 9.8 days

The month with the most sunshine days is August (24 days).
The month with the least sunshine days is February (7.1 days).

Average UV index in January
Stevenson, WA

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

The months with the highest UV index are June and July (UV index 5).
The month with the lowest UV index is January (UV index 1).

Average cloud cover in January
Stevenson, WA

Average cloud cover in January - Stevenson, WA
  • Average cloud cover in January: 65

The month with the most cloud cover is February (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 23).

Average visibility in January
Stevenson, WA

Average visibility in January - Stevenson, WA
  • Average visibility in January: 4mi

The months with the highest visibility are July and August (6mi).
The months with the lowest visibility are January, February, March, November and December (4mi).

Stevenson, Washington, USA

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