January weather forecastJacksonville, OR
January
Weather in January
January, like December, is another chilly winter month in Jacksonville, Oregon, with an average temperature fluctuating between 46.4°F (8°C) and 30.7°F (-0.7°C).Temperature
January brings a marginal elevation to a still frosty 46.4°F (8°C) from December's 44.4°F (6.9°C) in Jacksonville's average high-temperatures. Jacksonville records a mean low-temperature of 30.7°F (-0.7°C) in January.Humidity
January and December, with an average relative humidity of 83%, are the most humid months.Rainfall
In Jacksonville, during January, the rain falls for 14 days and regularly aggregates up to 3.03" (77mm) of precipitation. In Jacksonville, during the entire year, the rain falls for 130.2 days and collects up to 19.17" (487mm) of precipitation.Snowfall
January through April, November and December are months with snowfall. In Jacksonville, during January, snow falls for 1.8 days and regularly aggregates up to 1.89" (48mm) of snow. Throughout the year, there are 14.2 snowfall days, and 8.15" (207mm) of snow is accumulated.Daylight
In January, the average length of the day is 9h and 31min.On the first day of January in Jacksonville, sunrise is at 7:40 am and sunset at 4:49 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 5:24 pm PST.
Sunshine
In Jacksonville, the average sunshine in January is 5.4h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: A maximum daily UV index of 2 during January morphs into the following directions:
Long-term sun exposure is typically not a concern for most. However, those with sensitive skin, infants, and children must always have protection. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Jacksonville, OR
- Average high temperature in January: 46.4°F
The warmest month (with the highest average high temperature) is August (85.1°F).
The month with the lowest average high temperature is December (44.4°F).
- Average low temperature in January: 30.7°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 (29.3°F).
Average pressure in January
Jacksonville, OR
- 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
Jacksonville, OR
- Average wind speed in January: 4.2mph
The windiest months (with the highest average wind speed) are January and March (4.2mph).
The calmest months (with the lowest average wind speed) are August, September and October (3.4mph).
Average humidity in January
Jacksonville, OR
- Average humidity in January: 83%
The months with the highest relative humidity are January and December (83%).
The month with the lowest relative humidity is August (59%).
Average rainfall in January
Jacksonville, OR
- Average rainfall in January: 3.03"
The wettest month (with the highest rainfall) is December (3.11").
The driest month (with the least rainfall) is July (0.2").
Average rainfall days in January
Jacksonville, OR
- Average rainfall days in January: 14 days
The month with the highest number of rainy days is March (17.8 days).
The month with the least rainy days is August (3.7 days).
Average snowfall in January
Jacksonville, OR
- Average snowfall in January: 1.89"
The month with the highest snowfall is February (2.64").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Jacksonville, OR
- Average snowfall days in January: 1.8 days
The month with the highest number of snowfall days is February (4.8 days).
The months with the least snowfall days are June, July, August and October (0 days).
Average daylight in January /
Average sunshine in January
Jacksonville, OR
- Average daylight in January: 9h and 30min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in January: 5h and 24min
The months with the most sunshine are July and August (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).
Average sunshine days in January
Jacksonville, OR
- Average sunshine days in January: 15 days
The month with the most sunshine days is August (25.3 days).
The month with the least sunshine days is March (11.2 days).
Average UV index in January
Jacksonville, 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
Jacksonville, OR
- Average cloud cover in January: 44
The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 11).
Average visibility in January
Jacksonville, OR
- Average visibility in January: 5mi
The months with the highest visibility are July, August, September and October (6mi).
The months with the lowest visibility are January, February, March, April, May, June, November and December (5mi).
