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
In January, Winston experiences a barely noticeable shift in meteorological conditions, with average high-temperatures moving from 46.2°F (7.9°C) in December to a still frosty 48.7°F (9.3°C). Winston throughout January, experiences an average nighttime temperature of 33.8°F (1°C).Humidity
In Winston, the average relative humidity in January is 86%.Rainfall
In Winston, Oregon, during January, the rain falls for 15.4 days and regularly aggregates up to 3.5" (89mm) of precipitation. In Winston, Oregon, during the entire year, the rain falls for 148.4 days and collects up to 25" (635mm) of precipitation.Snowfall
January through March, November and December are months with snowfall. In Winston, during January, snow falls for 0.9 days and regularly aggregates up to 0.31" (8mm) of snow. Throughout the year, there are 4.7 snowfall days, and 3.03" (77mm) of snow is accumulated.Daylight
In Winston, the average length of the day in January is 9h and 26min.On the first day of the month, sunrise is at 7:45 am and sunset at 4:49 pm. On the last day of January, sunrise is at 7:29 am and sunset at 5:24 pm PST.
Sunshine
The average sunshine in January is 4.4h.UV index
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In January, a daily maximum UV index of 2 leads to the following instructions:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average January temperature?
What is the average humidity in January?
How many days does it rain in January?
How much does it snow in January?
How many hours of daylight does Winston have in January?
What time are sunrise and sunset in January?
How many hours of sunshine does Winston have in January?
When is the lowest UV index?
What is the UV index reading in January?
Average temperature in January
Winston, OR
- Average high temperature in January: 48.7°F
The warmest month (with the highest average high temperature) is August (81°F).
The month with the lowest average high temperature is December (46.2°F).
- Average low temperature in January: 33.8°F
The month with the highest average low temperature is August (47.5°F).
The coldest month (with the lowest average low temperature) is December (32.9°F).
Average pressure in January
Winston, OR
- Average pressure in January: 30.12"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).
Average wind speed in January
Winston, OR
- Average wind speed in January: 4mph
The windiest month (with the highest average wind speed) is January (4mph).
The calmest months (with the lowest average wind speed) are September and October (3.2mph).
Average humidity in January
Winston, OR
- Average humidity in January: 86%
The months with the highest relative humidity are February and December (87%).
The months with the lowest relative humidity are July and August (71%).
Average rainfall in January
Winston, OR
- Average rainfall in January: 3.5"
The wettest month (with the highest rainfall) is December (3.74").
The driest month (with the least rainfall) is August (0.2").
Average rainfall days in January
Winston, OR
- Average rainfall days in January: 15.4 days
The month with the highest number of rainy days is March (19.4 days).
The month with the least rainy days is July (3.5 days).
Average snowfall in January
Winston, OR
- Average snowfall in January: 0.31"
The month with the highest snowfall is February (1.26").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in January
Winston, OR
- Average snowfall days in January: 0.9 days
The month with the highest number of snowfall days is February (1.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in January /
Average sunshine in January
Winston, OR
- Average daylight in January: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in January: 4h and 2min
The months with the most sunshine are July and August (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 4h and 12min).
Average sunshine days in January
Winston, OR
- Average sunshine days in January: 13.6 days
The month with the most sunshine days is August (26.2 days).
The month with the least sunshine days is March (9.7 days).
Average UV index in January
Winston, 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, November and December (UV index 2).
Average cloud cover in January
Winston, OR
- Average cloud cover in January: 55
The month with the most cloud cover is March (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in January
Winston, OR
- Average visibility in January: 4mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (4mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (4mi).
Winston, Oregon, USA
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