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
January ushers in an average high-temperature of a still chilly 46°F (7.8°C), aligning closely with the preceding month. During January, the nighttime temperature averages of 35.1°F (1.7°C).Humidity
In West Slope, the average relative humidity in January is 83%.Rainfall
In January, in West Slope, the rain falls for 18.5 days. Throughout January, 4.49" (114mm) of precipitation is accumulated. In West Slope, during the entire year, the rain falls for 173.2 days and collects up to 30.55" (776mm) of precipitation.Snowfall
January through March, November and December are months with snowfall. In West Slope, Oregon, during January, snow falls for 1.3 days and regularly aggregates up to 0.63" (16mm) of snow. Throughout the year, there are 6.1 snowfall days, and 4.37" (111mm) of snow is accumulated.Daylight
The average length of the day in January is 9h and 11min.On the first day of January, sunrise is at 7:51 am and sunset at 4:38 pm. On the last day of the month, sunrise is at 7:33 am and sunset at 5:15 pm PST.
Sunshine
In January, the average sunshine in West Slope is 4h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: The maximum daily UV index of 2 in January converts into the following recommendations:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. To protect against the Sun's most potent rays, avoid direct exposure around midday. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in January?
What is the average humidity in January?
How many days does it rain in January?
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 in West Slope?
How long on average sun shines in January?
What is the month with the lowest UV index?
What is the UV index intensity in January?
Average temperature in January
West Slope, OR
- Average high temperature in January: 46°F
The warmest month (with the highest average high temperature) is August (81.7°F).
The month with the lowest average high temperature is December (44.2°F).
- Average low temperature in January: 35.1°F
The month with the highest average low temperature is August (55.6°F).
The coldest month (with the lowest average low temperature) is December (34.7°F).
Average pressure in January
West Slope, 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).
Average wind speed in January
West Slope, OR
- Average wind speed in January: 5.4mph
The windiest month (with the highest average wind speed) is January (5.4mph).
The calmest month (with the lowest average wind speed) is August (4mph).
Average humidity in January
West Slope, OR
- Average humidity in January: 83%
The months with the highest relative humidity are February and December (84%).
The month with the lowest relative humidity is August (63%).
Average rainfall in January
West Slope, OR
- Average rainfall in January: 4.49"
The wettest month (with the highest rainfall) is December (4.61").
The driest month (with the least rainfall) is July (0.31").
Average rainfall days in January
West Slope, OR
- Average rainfall days in January: 18.5 days
The month with the highest number of rainy days is March (20.6 days).
The month with the least rainy days is August (4.6 days).
Average snowfall in January
West Slope, OR
- Average snowfall in January: 0.63"
The month with the highest snowfall is February (1.61").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in January
West Slope, OR
- Average snowfall days in January: 1.3 days
The month with the highest number of snowfall days is February (2.2 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in January /
Average sunshine in January
West Slope, 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 0min
The month with the most sunshine is August (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 3h and 54min).
Average sunshine days in January
West Slope, OR
- Average sunshine days in January: 11 days
The month with the most sunshine days is July (24.9 days).
The month with the least sunshine days is March (8.6 days).
Average UV index in January
West Slope, 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).
Average cloud cover in January
West Slope, OR
- Average cloud cover in January: 58
The month with the most cloud cover is February (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 23).
Average visibility in January
West Slope, 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).
West Slope, Oregon, USA
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