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 advent of January sees the average high-temperature at a still icy 38.1°F (3.4°C), subtly shifted from December's 37°F (2.8°C). Rowena reports an average nighttime low-temperature of 28.2°F (-2.1°C) in January.Humidity
The months with the highest humidity are January and December, with an average relative humidity of 85%.Rainfall
The month with the most rainfall is January, when the rain falls for 16.2 days and typically aggregates up to 2.99" (76mm) of precipitation.Snowfall
Months with snowfall in Rowena are January through March, November and December. In Rowena, during January, snow falls for 3.5 days and regularly aggregates up to 2.68" (68mm) of snow. Throughout the year, there are 14.3 snowfall days, and 11.06" (281mm) of snow is accumulated.Daylight
In January, the average length of the day is 9h and 10min.On the first day of the month, sunrise is at 7:45 am and sunset at 4:31 pm. On the last day of January, sunrise is at 7:27 am and sunset at 5:09 pm PST.
Sunshine
January has the least sunshine of the year, with an average of 4.8h of sunshine.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 reading of 2, and below, represents a low health risk from exposure to the Sun's UV rays for the average person.Note: A maximum daily UV index of 2 during January morphs into the following directions:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. 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
Is January cold?
What are the most humid months?
What is the average humidity in January?
What is the wettest month?
How much does it rain in January?
How much does it snow in January?
How many hours of daylight does Rowena have in January?
When are sunrise and sunset in January?
What is the month with the least sunshine?
How long on average sun shines in January?
When is the lowest UV index?
What is the UV index intensity in January?
Average temperature in January
Rowena, OR
- Average high temperature in January: 38.1°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is December (37°F).
- Average low temperature in January: 28.2°F
The month with the highest average low temperature is August (55.8°F).
The coldest month (with the lowest average low temperature) is December (27.1°F).
Average pressure in January
Rowena, OR
- Average pressure in January: 30.16"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is August (29.96"Hg).
Average wind speed in January
Rowena, OR
- Average wind speed in January: 4.8mph
The windiest month (with the highest average wind speed) is June (7.1mph).
The calmest months (with the lowest average wind speed) are January and December (4.8mph).
Average humidity in January
Rowena, OR
- Average humidity in January: 85%
The months with the highest relative humidity are January and December (85%).
The months with the lowest relative humidity are July and August (51%).
Average rainfall in January
Rowena, OR
- Average rainfall in January: 2.99"
The wettest month (with the highest rainfall) is January (2.99").
The driest month (with the least rainfall) is July (0.16").
Average rainfall days in January
Rowena, OR
- Average rainfall days in January: 16.2 days
The month with the highest number of rainy days is March (16.3 days).
The month with the least rainy days is August (3.2 days).
Average snowfall in January
Rowena, OR
- Average snowfall in January: 2.68"
The month with the highest snowfall is February (4.29").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in January
Rowena, OR
- Average snowfall days in January: 3.5 days
The month with the highest number of snowfall days is December (4.4 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
Rowena, 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 5min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).
Average sunshine days in January
Rowena, OR
- Average sunshine days in January: 11.6 days
The month with the most sunshine days is July (26.8 days).
The month with the least sunshine days is March (10.6 days).
Average UV index in January
Rowena, 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
Rowena, OR
- Average cloud cover in January: 52
The month with the most cloud cover is January (Cloud cover 52).
The months with the least cloud cover are July and August (Cloud cover 10).
Average visibility in January
Rowena, OR
- Average visibility in January: 5mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).
Rowena, Oregon, USA
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