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's presence records an average high-temperature of a still cold 38.7°F (3.7°C), closely mirroring December's climate. Sunriver usually reports an average low-temperature of 26.8°F (-2.9°C) during the month of January.Humidity
In January, the average relative humidity in Sunriver is 80%.Rainfall
In Sunriver, during January, the rain falls for 7.9 days and regularly aggregates up to 1.3" (33mm) of precipitation. Throughout the year, in Sunriver, there are 107.1 rainfall days, and 12.17" (309mm) of precipitation is accumulated.Snowfall
January through May, September through December are months with snowfall. In January, in Sunriver, it is snowing for 6.8 days. Throughout January, 4.25" (108mm) of snow is accumulated. In Sunriver, during the entire year, snow falls for 44.9 days and aggregates up to 24.57" (624mm) of snow.Daylight
The average length of the day in January is 9h and 22min.On the first day of the month, sunrise is at 7:39 am and sunset at 4:38 pm. On the last day of January, in Sunriver, sunrise is at 7:23 am and sunset at 5:14 pm PST.
Sunshine
The average sunshine in January is 5.6h.UV index
The months with the lowest UV index in Sunriver are January through March, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for the average person.Note: The daily maximum UV index of 2 in January interprets into the following advice:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Frequently asked questions
Is January cold in Sunriver?
What is the average humidity in January in Sunriver?
How many days does it rain in January in Sunriver?
How many days does it snow in January in Sunriver?
How many hours of daylight does Sunriver have in January?
When is the sunrise / sunset in January in Sunriver?
How long on average sun shines in January in Sunriver?
What are the months with the lowest UV index in Sunriver?
What is the UV index reading in January in Sunriver?
Average temperature in January
Sunriver, OR
- Average high temperature in January: 38.7°F
The warmest month (with the highest average high temperature) is July (79.5°F).
The month with the lowest average high temperature is December (35.8°F).
- Average low temperature in January: 26.8°F
The month with the highest average low temperature is August (52.2°F).
The coldest month (with the lowest average low temperature) is December (24.6°F).
Average pressure in January
Sunriver, OR
- Average pressure in January: 30.17"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is August (29.97"Hg).
Average wind speed in January
Sunriver, OR
- Average wind speed in January: 7.1mph
The windiest month (with the highest average wind speed) is January (7.1mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in January
Sunriver, OR
- Average humidity in January: 80%
The month with the highest relative humidity is December (82%).
The month with the lowest relative humidity is July (48%).
Average rainfall in January
Sunriver, OR
- Average rainfall in January: 1.3"
The wettest month (with the highest rainfall) is May (1.5").
The driest month (with the least rainfall) is July (0.35").
Average rainfall days in January
Sunriver, OR
- Average rainfall days in January: 7.9 days
The month with the highest number of rainy days is May (14 days).
The month with the least rainy days is July (4.8 days).
Average snowfall in January
Sunriver, OR
- Average snowfall in January: 4.25"
The month with the highest snowfall is February (6.65").
The months with the least snowfall are June, July and August (0").
Average snowfall days in January
Sunriver, OR
- Average snowfall days in January: 6.8 days
The month with the highest number of snowfall days is March (9.5 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in January /
Average sunshine in January
Sunriver, OR
- Average daylight in January: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in January: 5h and 4min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).
Average sunshine days in January
Sunriver, OR
- Average sunshine days in January: 18.5 days
The month with the most sunshine days is July (23.6 days).
The month with the least sunshine days is April (12.8 days).
Average UV index in January
Sunriver, 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, March, November and December (UV index 2).
Average cloud cover in January
Sunriver, OR
- Average cloud cover in January: 45
The month with the most cloud cover is December (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 10).
Average visibility in January
Sunriver, OR
- Average visibility in January: 5mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and December (5mi).
Sunriver, Oregon, USA
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