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
Richland registers an average high-temperature of a still freezing cold 31.8°F (-0.1°C) with the arrival of January, showing minor deviation from the preceding month. In the month of January, the nighttime temperature dips to a steady average of 19.4°F (-7°C).Humidity
With an average relative humidity of 88%, January is the most humid month.Rainfall
In January, the rain falls for 7.9 days. Throughout January, 1.61" (41mm) of precipitation is accumulated. In Richland, Oregon, during the entire year, the rain falls for 113.5 days and collects up to 12.56" (319mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Richland, during January, snow falls for 14.3 days and regularly aggregates up to 9.76" (248mm) of snow. Throughout the year, there are 65.1 snowfall days, and 38.9" (988mm) of snow is accumulated.Daylight
The average length of the day in January is 9h and 16min.On the first day of the month, sunrise is at 7:25 am and sunset at 4:18 pm. On the last day of January, sunrise is at 7:08 am and sunset at 4:55 pm PST.
Sunshine
With an average of 4.8h of sunshine, January has the least sunshine of the year.UV index
With an average maximum UV index of 1, January is the month with the lowest UV index in Richland. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum UV index, 1 during January, leads to the following recommendations:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is January?
What is the most humid month?
What is the average humidity in January?
How many days does it rain in January in Richland?
How much does it snow in January?
How many hours of daylight does Richland have in January?
What time are sunrise and sunset in January in Richland?
What is the month with the least sunshine?
How many hours of sunshine does Richland have in January?
When is the lowest UV index?
What is the UV index reading in January?
Average temperature in January
Richland, OR
- Average high temperature in January: 31.8°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 (30.7°F).
- Average low temperature in January: 19.4°F
The month with the highest average low temperature is August (53.8°F).
The coldest month (with the lowest average low temperature) is December (18.5°F).
Average pressure in January
Richland, 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 (29.92"Hg).
Average wind speed in January
Richland, OR
- Average wind speed in January: 5.5mph
The windiest month (with the highest average wind speed) is April (6.2mph).
The calmest months (with the lowest average wind speed) are September and October (5.4mph).
Average humidity in January
Richland, OR
- Average humidity in January: 88%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is August (40%).
Average rainfall in January
Richland, OR
- Average rainfall in January: 1.61"
The wettest month (with the highest rainfall) is December (1.77").
The driest month (with the least rainfall) is August (0.31").
Average rainfall days in January
Richland, OR
- Average rainfall days in January: 7.9 days
The month with the highest number of rainy days is March (15.6 days).
The month with the least rainy days is August (4.4 days).
Average snowfall in January
Richland, OR
- Average snowfall in January: 9.76"
The month with the highest snowfall is December (10.59").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Richland, OR
- Average snowfall days in January: 14.3 days
The month with the highest number of snowfall days is December (14.7 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in January /
Average sunshine in January
Richland, 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: 4h and 5min
The month with the most sunshine is August (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).
Average sunshine days in January
Richland, OR
- Average sunshine days in January: 14.8 days
The month with the most sunshine days is July (22.7 days).
The months with the least sunshine days are February and March (11.3 days).
Average UV index in January
Richland, OR
- Average UV index in January: 1
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in January
Richland, OR
- Average cloud cover in January: 49
The month with the most cloud cover is February (Cloud cover 50).
The months with the least cloud cover are July and August (Cloud cover 9).
Average visibility in January
Richland, OR
- Average visibility in January: 4mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (4mi).
Richland, Oregon, USA
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