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 arrival registers an average high-temperature of a still cold 35.2°F (1.8°C), closely aligning with the temperature of the previous month. Nighttime temperature in Ritter dips to a mean of 22.1°F (-5.5°C) during January.Humidity
In January, the average relative humidity is 84%.Rainfall
In Ritter, in January, it is raining for 12.3 days, with typically 2.17" (55mm) of accumulated precipitation. In Ritter, during the entire year, the rain falls for 127.7 days and collects up to 17.09" (434mm) of precipitation.Snowfall
January through May, September through December are months with snowfall in Ritter. In Ritter, in January, snow falls for 11.7 days, with typically accumulated 8.11" (206mm) of snow. Throughout the year, there are 62.5 snowfall days, and 39.17" (995mm) of snow is accumulated.Daylight
In January, the average length of the day is 9h and 15min.On the first day of January, sunrise is at 7:34 am and sunset at 4:25 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 5:02 pm PST.
Sunshine
January and February, with an average of 5.2h of sunshine, are months with the least sunshine in Ritter.UV index
January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for average individuals.Note: The UV index of 2 during January leads to these advisories:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in January?
What is the average humidity in January?
How much does it rain in January?
How much does it snow in Ritter in January?
How many hours of daylight does Ritter have in January?
When is the sunrise / sunset in January?
What are the months with the least sunshine?
How many hours of sunshine does Ritter have in January?
What is the month with the lowest UV index?
How high is the UV index in January?
Average temperature in January
Ritter, OR
- Average high temperature in January: 35.2°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 (33.4°F).
- Average low temperature in January: 22.1°F
The month with the highest average low temperature is August (49.6°F).
The coldest month (with the lowest average low temperature) is December (19.6°F).
Average pressure in January
Ritter, OR
- Average pressure in January: 30.22"Hg
The month with the highest atmospheric pressure is January (30.22"Hg).
The month with the lowest atmospheric pressure is August (29.93"Hg).
Average wind speed in January
Ritter, OR
- Average wind speed in January: 6mph
The windiest month (with the highest average wind speed) is April (6.2mph).
The calmest months (with the lowest average wind speed) are August and September (5mph).
Average humidity in January
Ritter, OR
- Average humidity in January: 84%
The month with the highest relative humidity is February (85%).
The month with the lowest relative humidity is August (42%).
Average rainfall in January
Ritter, OR
- Average rainfall in January: 2.17"
The wettest month (with the highest rainfall) is February (2.28").
The driest month (with the least rainfall) is July (0.24").
Average rainfall days in January
Ritter, OR
- Average rainfall days in January: 12.3 days
The month with the highest number of rainy days is March (17.3 days).
The month with the least rainy days is August (3.3 days).
Average snowfall in January
Ritter, OR
- Average snowfall in January: 8.11"
The month with the highest snowfall is February (10.31").
The months with the least snowfall are June, July and August (0").
Average snowfall days in January
Ritter, OR
- Average snowfall days in January: 11.7 days
The month with the highest number of snowfall days is December (14.5 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in January /
Average sunshine in January
Ritter, 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 1min
The month with the most sunshine is August (Average sunshine: 12h and 6min).
The months with the least sunshine are January and February (Average sunshine: 5h and 12min).
Average sunshine days in January
Ritter, OR
- Average sunshine days in January: 13.5 days
The month with the most sunshine days is July (24.9 days).
The month with the least sunshine days is February (9 days).
Average UV index in January
Ritter, 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, October, November and December (UV index 2).
Average cloud cover in January
Ritter, OR
- Average cloud cover in January: 47
The month with the most cloud cover is February (Cloud cover 49).
The months with the least cloud cover are July and August (Cloud cover 9).
Average visibility in January
Ritter, OR
- Average visibility in January: 4mi
The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February and December (4mi).
Ritter, Oregon, USA
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