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
Transitioning into January, Three Rivers records an average high-temperature of a still icy 36.7°F (2.6°C), almost identical to December's 34.5°F (1.4°C). During the month of January, Three Rivers anticipates a mean low-temperature of 25.2°F (-3.8°C).Humidity
In January, the average relative humidity is 81%.Rainfall
In Three Rivers, in January, during 2.6 rainfall days, 0.47" (12mm) of precipitation is typically accumulated. In Three Rivers, during the entire year, the rain falls for 42.7 days and collects up to 4.8" (122mm) of precipitation.Snowfall
January through June, September through December are months with snowfall in Three Rivers. In January, it is snowing for 6.2 days. Throughout January, 1.81" (46mm) of snow is accumulated. Throughout the year, there are 40.2 snowfall days, and 19.09" (485mm) of snow is accumulated.Daylight
In Three Rivers, the average length of the day in January is 9h and 22min.On the first day of January in Three Rivers, sunrise is at 7:39 am and sunset at 4:38 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 5:14 pm PST.
Sunshine
The average sunshine in January is 5.6h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for the average person.Note: In January, a daily maximum UV index of 2 leads to the following instructions:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is 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?
What time are sunrise and sunset in January?
How many hours of sunshine does Three Rivers have in January?
What are the months with the lowest UV index?
What is the UV index intensity in January?
Average temperature in January
Three Rivers, OR
- Average high temperature in January: 36.7°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is December (34.5°F).
- Average low temperature in January: 25.2°F
The month with the highest average low temperature is August (51.8°F).
The coldest month (with the lowest average low temperature) is December (23.7°F).
Average pressure in January
Three Rivers, OR
- Average pressure in January: 30.18"Hg
The month with the highest atmospheric pressure is January (30.18"Hg).
The month with the lowest atmospheric pressure is August (29.97"Hg).
Average wind speed in January
Three Rivers, OR
- Average wind speed in January: 7.4mph
The windiest month (with the highest average wind speed) is March (7.6mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in January
Three Rivers, OR
- Average humidity in January: 81%
The month with the highest relative humidity is December (82%).
The month with the lowest relative humidity is July (46%).
Average rainfall in January
Three Rivers, OR
- Average rainfall in January: 0.47"
The wettest month (with the highest rainfall) is February (0.71").
The driest month (with the least rainfall) is July (0.08").
Average rainfall days in January
Three Rivers, OR
- Average rainfall days in January: 2.6 days
The month with the highest number of rainy days is May (5.5 days).
The month with the least rainy days is February (2.3 days).
Average snowfall in January
Three Rivers, OR
- Average snowfall in January: 1.81"
The month with the highest snowfall is February (4.61").
The months with the least snowfall are July and August (0").
Average snowfall days in January
Three Rivers, OR
- Average snowfall days in January: 6.2 days
The month with the highest number of snowfall days is December (7.4 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in January /
Average sunshine in January
Three Rivers, 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 6min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in January
Three Rivers, OR
- Average sunshine days in January: 24.8 days
The month with the most sunshine days is July (26.7 days).
The month with the least sunshine days is February (20.6 days).
Average UV index in January
Three Rivers, 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
Three Rivers, OR
- Average cloud cover in January: 45
The month with the most cloud cover is December (Cloud cover 46).
The months with the least cloud cover are July and August (Cloud cover 9).
Average visibility in January
Three Rivers, 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).
Three Rivers, Oregon, USA
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