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 unfolding of January shows an average high-temperature of a still chilly 45.3°F (7.4°C), indicating a slight variance from December's 43.7°F (6.5°C). Yamhill, in the month of January, anticipates a consistent average low-temperature of 34.9°F (1.6°C).Humidity
January, February, November and December, with an average relative humidity of 87%, are the most humid months.Rainfall
In January, in Yamhill, the rain falls for 18.4 days. Throughout January, 3.82" (97mm) of precipitation is accumulated. Throughout the year, there are 186.2 rainfall days, and 27.05" (687mm) of precipitation is accumulated.Snowfall
January through March, November and December are months with snowfall in Yamhill. In Yamhill, during January, snow falls for 0.9 days and regularly aggregates up to 0.31" (8mm) of snow. In Yamhill, during the entire year, snow falls for 5 days and aggregates up to 2.48" (63mm) of snow.Daylight
In Yamhill, the average length of the day in January is 9h and 13min.On the first day of the month, sunrise is at 7:52 am and sunset at 4:40 pm. On the last day of January, sunrise is at 7:34 am and sunset at 5:17 pm PST.
Sunshine
The average sunshine in January is 3.9h.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 unsafe exposure to UV radiation for the ordinary person.Note: A maximum daily UV index of 2 during January morphs into the following directions:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. 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
What is the usual temperature for Yamhill in January?
What is the most humid month?
What is the average humidity in January?
How much does it rain in January?
How many days does it snow in January?
How many hours of daylight does Yamhill have in January?
What time are sunrise and sunset in January?
How long on average sun shines in January?
When is the lowest UV index?
How high is the UV index in January?
Average temperature in January
Yamhill, OR
- Average high temperature in January: 45.3°F
The warmest month (with the highest average high temperature) is August (79.9°F).
The month with the lowest average high temperature is December (43.7°F).
- Average low temperature in January: 34.9°F
The month with the highest average low temperature is August (53.6°F).
The coldest month (with the lowest average low temperature) is December (33.6°F).
Average pressure in January
Yamhill, OR
- Average pressure in January: 30.11"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are August and September (30.01"Hg).
Average wind speed in January
Yamhill, OR
- Average wind speed in January: 4.8mph
The windiest month (with the highest average wind speed) is March (5.1mph).
The calmest months (with the lowest average wind speed) are August and September (4mph).
Average humidity in January
Yamhill, OR
- Average humidity in January: 87%
The months with the highest relative humidity are January, February, November and December (87%).
The month with the lowest relative humidity is August (68%).
Average rainfall in January
Yamhill, OR
- Average rainfall in January: 3.82"
The wettest month (with the highest rainfall) is December (3.9").
The driest month (with the least rainfall) is August (0.39").
Average rainfall days in January
Yamhill, OR
- Average rainfall days in January: 18.4 days
The month with the highest number of rainy days is March (21.9 days).
The months with the least rainy days are July and August (6.3 days).
Average snowfall in January
Yamhill, OR
- Average snowfall in January: 0.31"
The month with the highest snowfall is February (0.91").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in January
Yamhill, OR
- Average snowfall days in January: 0.9 days
The month with the highest number of snowfall days is February (2 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
Yamhill, 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: 3h and 5min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).
Average sunshine days in January
Yamhill, OR
- Average sunshine days in January: 10.8 days
The month with the most sunshine days is July (22.3 days).
The month with the least sunshine days is March (7.4 days).
Average UV index in January
Yamhill, 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
Yamhill, OR
- Average cloud cover in January: 61
The month with the most cloud cover is February (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in January
Yamhill, OR
- Average visibility in January: 4mi
The months with the highest visibility are July, August and September (6mi).
The months with the lowest visibility are January, February, November and December (4mi).
Yamhill, Oregon, USA
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