Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average snowfall in January
- Average snowfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
The arrival of January brings an average high-temperature of a still wintry 38.8°F (3.8°C), closely following the temperature pattern of December. During the nights in January, Stevenson experiences a consistent average temperature of 28.9°F (-1.7°C).Humidity
In January, the average relative humidity 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
January through April, November and December are months with snowfall. The month with the most snowfall is January, when snow falls for 2.6 days and typically aggregates up to 4.33" (110mm) of snow.Daylight
In Stevenson, the average length of the day in January 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 reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: A maximum high daily UV index of 1 during January translates into the following directions:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold does it get in January?
What is the average humidity in January?
What is the rainiest month?
How much does it rain in January?
When does it snow the most?
How many days does it snow in January?
What is the average length of the day in January?
When are sunrise and sunset in January?
How long on average sun shines in January?
When is the lowest UV index in Stevenson?
How high is the UV index in January in Stevenson?
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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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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