January weather forecastWeston, OR
January
Weather in January
January, the same as December, is a wintry winter month in Weston, Oregon, with an average temperature varying between 36.1°F (2.3°C) and 25°F (-3.9°C).Temperature
The arrival of January sees a recorded average high-temperature of a still cold 36.1°F (2.3°C), showing little divergence from the previous month's conditions. An average low-temperature of 25°F (-3.9°C) is observed in Weston during the January nights.Humidity
The months with the highest humidity are January, February and December, with an average relative humidity of 84%.Rainfall
In January, the rain falls for 11.3 days. Throughout January, 3.03" (77mm) of precipitation is accumulated. In Weston, during the entire year, the rain falls for 127.6 days and collects up to 24.33" (618mm) of precipitation.Snowfall
January through May, September through December are months with snowfall. In Weston, in January, snow falls for 16.3 days, with typically accumulated 15.08" (383mm) of snow. Throughout the year, there are 84.8 snowfall days, and 74.33" (1888mm) of snow is accumulated.Daylight
In Weston, the average length of the day in January is 9h and 10min.On the first day of January, sunrise is at 7:34 am and sunset at 4:19 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 4:57 pm PST.
Sunshine
January and December, with an average of 4.6h of sunshine, are months with the least sunshine.UV index
The months with the lowest UV index are January through April, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: In January, a daily maximum UV index of 2 leads to the following instructions:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Weston, OR
- Average high temperature in January: 36.1°F
The warmest month (with the highest average high temperature) is August (80.6°F).
The month with the lowest average high temperature is December (34.5°F).
- Average low temperature in January: 25°F
The month with the highest average low temperature is August (54.3°F).
The coldest month (with the lowest average low temperature) is December (22.3°F).
Average pressure in January
Weston, OR
- Average pressure in January: 30.21"Hg
The month with the highest atmospheric pressure is January (30.21"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).
Average wind speed in January
Weston, OR
- Average wind speed in January: 6.3mph
The windiest month (with the highest average wind speed) is March (6.7mph).
The calmest month (with the lowest average wind speed) is September (4.9mph).
Average humidity in January
Weston, OR
- Average humidity in January: 84%
The months with the highest relative humidity are January, February and December (84%).
The month with the lowest relative humidity is August (44%).
Average rainfall in January
Weston, OR
- Average rainfall in January: 3.03"
The wettest month (with the highest rainfall) is February (3.23").
The driest month (with the least rainfall) is July (0.24").
Average rainfall days in January
Weston, OR
- Average rainfall days in January: 11.3 days
The month with the highest number of rainy days is March (15.9 days).
The month with the least rainy days is August (4.8 days).
Average snowfall in January
Weston, OR
- Average snowfall in January: 15.08"
The month with the highest snowfall is February (19.21").
The months with the least snowfall are June, July and August (0").
Average snowfall days in January
Weston, OR
- Average snowfall days in January: 16.3 days
The month with the highest number of snowfall days is December (17.7 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in January /
Average sunshine in January
Weston, OR
- Average daylight in January: 9h and 12min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in January: 4h and 36min
The month with the most sunshine is August (Average sunshine: 12h and 0min).
The months with the least sunshine are January and December (Average sunshine: 4h and 36min).
Average sunshine days in January
Weston, OR
- Average sunshine days in January: 11.5 days
The month with the most sunshine days is July (24.5 days).
The months with the least sunshine days are February and March (8.2 days).
Average UV index in January
Weston, 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, April, November and December (UV index 2).
Average cloud cover in January
Weston, OR
- Average cloud cover in January: 52
The month with the most cloud cover is February (Cloud cover 54).
The months with the least cloud cover are July and August (Cloud cover 11).
Average visibility in January
Weston, 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).
