January weather forecastMission, OR
January
Weather in January
January, like December, in Mission, Oregon, is an icy winter month, with an average temperature fluctuating between 28.6°F (-1.9°C) and 39.7°F (4.3°C).Temperature
The arrival of January sees a recorded average high-temperature of a still wintry 39.7°F (4.3°C), showing little divergence from the previous month's conditions. January nights observe an average temperature dip to a freezing cold 28.6°F (-1.9°C).Humidity
With an average relative humidity of 79%, January is the most humid month.Rainfall
In Mission, during January, the rain falls for 13.6 days and regularly aggregates up to 1.46" (37mm) of precipitation. Throughout the year, there are 132.7 rainfall days, and 12.91" (328mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, September, November and December. In Mission, in January, during 3.7 snowfall days, 1.81" (46mm) of snow is typically accumulated. In Mission, during the entire year, snow falls for 17.5 days and aggregates up to 9.41" (239mm) of snow.Daylight
In January, the average length of the day is 9h and 10min.On the first day of the month, sunrise is at 7:35 am and sunset at 4:21 pm. On the last day of January, sunrise is at 7:17 am and sunset at 4:58 pm PST.
Sunshine
January and December, with an average of 5.4h of sunshine, are months with the least 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 estimate of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for the average person.Note: In January, an average UV index of 2 transforms into the following instructions:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. During bright days, sunglasses that offer UVA and UVB defense are recommended. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Mission, OR
- Average high temperature in January: 39.7°F
The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is December (37.9°F).
- Average low temperature in January: 28.6°F
The month with the highest average low temperature is August (61.7°F).
The coldest month (with the lowest average low temperature) is December (27.3°F).
Average pressure in January
Mission, OR
- Average pressure in January: 30.2"Hg
The month with the highest atmospheric pressure is January (30.2"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).
Average wind speed in January
Mission, OR
- Average wind speed in January: 6.5mph
The windiest month (with the highest average wind speed) is April (8.3mph).
The calmest month (with the lowest average wind speed) is September (6.2mph).
Average humidity in January
Mission, OR
- Average humidity in January: 79%
The month with the highest relative humidity is January (79%).
The month with the lowest relative humidity is August (38%).
Average rainfall in January
Mission, OR
- Average rainfall in January: 1.46"
The wettest month (with the highest rainfall) is March (1.65").
The driest month (with the least rainfall) is July (0.24").
Average rainfall days in January
Mission, OR
- Average rainfall days in January: 13.6 days
The month with the highest number of rainy days is March (17.1 days).
The month with the least rainy days is August (3.6 days).
Average snowfall in January
Mission, OR
- Average snowfall in January: 1.81"
The month with the highest snowfall is February (3.62").
The months with the least snowfall are May, June, July, August and October (0").
Average snowfall days in January
Mission, OR
- Average snowfall days in January: 3.7 days
The month with the highest number of snowfall days is December (5.5 days).
The months with the least snowfall days are May, June, July, August and October (0 days).
Average daylight in January /
Average sunshine in January
Mission, OR
- Average daylight in January: 9h and 12min
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: 5h and 24min
The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The months with the least sunshine are January and December (Average sunshine: 5h and 24min).
Average sunshine days in January
Mission, OR
- Average sunshine days in January: 14.3 days
The month with the most sunshine days is July (24.4 days).
The month with the least sunshine days is March (11.7 days).
Average UV index in January
Mission, OR
- Average UV index in January: 2
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in January
Mission, OR
- Average cloud cover in January: 43
The month with the most cloud cover is February (Cloud cover 44).
The month with the least cloud cover is August (Cloud cover 9).
Average visibility in January
Mission, OR
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
