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 transition into January marks the average high-temperature at a still icy 39°F (3.9°C), differing minimally from December's 36.5°F (2.5°C). Throughout the month of January, Prineville expects an average low of 27°F (-2.8°C).Humidity
The average relative humidity in January in Prineville, Oregon, is 79%.Rainfall
In Prineville, in January, it is raining for 12.7 days, with typically 1.61" (41mm) of accumulated precipitation. In Prineville, during the entire year, the rain falls for 138.8 days and collects up to 14.69" (373mm) of precipitation.Snowfall
January through May, September through December are months with snowfall. In Prineville, in January, snow falls for 8.8 days, with typically accumulated 4.17" (106mm) of snow. In Prineville, during the entire year, snow falls for 53.7 days and aggregates up to 25" (635mm) of snow.Daylight
In January, the average length of the day is 9h and 19min.On the first day of the month, sunrise is at 7:38 am and sunset at 4:34 pm. On the last day of January, in Prineville, Oregon, sunrise is at 7:22 am and sunset at 5:10 pm PST.
Sunshine
In January, the average sunshine is 5.5h.UV index
The months with the lowest UV index in Prineville 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 health risk from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index, 2 in January, converts into the following recommendations:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. During bright days, sunglasses that offer UVA and UVB defense are recommended. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Frequently asked questions
How cold is January in Prineville?
What is the average humidity in January in Prineville?
How many days does it rain in January in Prineville?
How much does it snow in Prineville in January?
What is the average length of the day in January in Prineville?
What time are sunrise and sunset in January in Prineville?
How many hours of sunshine does Prineville have in January?
What are the months with the lowest UV index in Prineville?
What is the UV index reading in January in Prineville?
Average temperature in January
Prineville, OR
- Average high temperature in January: 39°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is December (36.5°F).
- Average low temperature in January: 27°F
The month with the highest average low temperature is August (52.9°F).
The coldest month (with the lowest average low temperature) is December (25°F).
Average pressure in January
Prineville, OR
- Average pressure in January: 30.19"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is August (29.96"Hg).
Average wind speed in January
Prineville, OR
- Average wind speed in January: 7mph
The windiest months (with the highest average wind speed) are March and April (7.1mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in January
Prineville, OR
- Average humidity in January: 79%
The month with the highest relative humidity is December (81%).
The months with the lowest relative humidity are July and August (45%).
Average rainfall in January
Prineville, OR
- Average rainfall in January: 1.61"
The wettest month (with the highest rainfall) is December (1.89").
The driest month (with the least rainfall) is July (0.31").
Average rainfall days in January
Prineville, OR
- Average rainfall days in January: 12.7 days
The month with the highest number of rainy days is March (17.5 days).
The month with the least rainy days is July (4.2 days).
Average snowfall in January
Prineville, OR
- Average snowfall in January: 4.17"
The month with the highest snowfall is February (6.54").
The months with the least snowfall are June, July and August (0").
Average snowfall days in January
Prineville, OR
- Average snowfall days in January: 8.8 days
The month with the highest number of snowfall days is December (13.3 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in January /
Average sunshine in January
Prineville, OR
- Average daylight in January: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in January: 5h and 3min
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 18min).
Average sunshine days in January
Prineville, OR
- Average sunshine days in January: 13.3 days
The month with the most sunshine days is July (24.8 days).
The month with the least sunshine days is March (8.8 days).
Average UV index in January
Prineville, 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
Prineville, OR
- Average cloud cover in January: 45
The month with the most cloud cover is December (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 10).
Average visibility in January
Prineville, 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).
Prineville, Oregon, USA
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