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
Sedro-Woolley starts January with an average high-temperature of a still cold 42.1°F (5.6°C), hinting at a minimal fluctuation from December. Night temperatures during January experience a slight downturn, averaging a still wintry 33.6°F (0.9°C).Humidity
The months with the highest humidity are January through March, with an average relative humidity of 86%.Rainfall
In Sedro-Woolley, Washington, in January, during 18.8 rainfall days, 6.54" (166mm) of precipitation is typically accumulated. In Sedro-Woolley, Washington, during the entire year, the rain falls for 203.2 days and collects up to 49.72" (1263mm) of precipitation.Snowfall
January through April, November and December are months with snowfall. In Sedro-Woolley, Washington, in January, during 2.6 snowfall days, 3.62" (92mm) of snow is typically accumulated. In Sedro-Woolley, during the entire year, snow falls for 12 days and aggregates up to 12.32" (313mm) of snow.Daylight
The average length of the day in January is 8h and 51min.On the first day of the month, sunrise is at 8:00 am and sunset at 4:24 pm. On the last day of January, sunrise is at 7:39 am and sunset at 5:05 pm PST.
Sunshine
In January, the average sunshine is 3.8h.UV index
January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for the average person.Note: In January, the maximum UV index of 2 suggests these recommendations:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. 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
How cold does it get in January?
What is the most humid month?
What is the average humidity in January?
How many days does it rain in January?
How much does it snow in January?
What is the average length of the day 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
Sedro-Woolley, WA
- Average high temperature in January: 42.1°F
The warmest month (with the highest average high temperature) is July (70.9°F).
The month with the lowest average high temperature is December (40.5°F).
- Average low temperature in January: 33.6°F
The month with the highest average low temperature is August (50.5°F).
The coldest months (with the lowest average low temperature) are February and December (32.5°F).
Average pressure in January
Sedro-Woolley, WA
- Average pressure in January: 30.09"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).
Average wind speed in January
Sedro-Woolley, WA
- Average wind speed in January: 5.5mph
The windiest month (with the highest average wind speed) is November (5.7mph).
The calmest month (with the lowest average wind speed) is August (3.3mph).
Average humidity in January
Sedro-Woolley, WA
- Average humidity in January: 86%
The months with the highest relative humidity are January, February and March (86%).
The month with the lowest relative humidity is July (75%).
Average rainfall in January
Sedro-Woolley, WA
- Average rainfall in January: 6.54"
The wettest month (with the highest rainfall) is November (7.09").
The driest month (with the least rainfall) is July (0.98").
Average rainfall days in January
Sedro-Woolley, WA
- Average rainfall days in January: 18.8 days
The month with the highest number of rainy days is March (22.1 days).
The month with the least rainy days is August (9.4 days).
Average snowfall in January
Sedro-Woolley, WA
- Average snowfall in January: 3.62"
The month with the highest snowfall is February (4.96").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Sedro-Woolley, WA
- Average snowfall days in January: 2.6 days
The month with the highest number of snowfall days is February (4.3 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
Sedro-Woolley, WA
- Average daylight in January: 8h and 5min
The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in January: 3h and 5min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 3h and 30min).
Average sunshine days in January
Sedro-Woolley, WA
- Average sunshine days in January: 9.9 days
The month with the most sunshine days is August (19.2 days).
The month with the least sunshine days is March (7.3 days).
Average UV index in January
Sedro-Woolley, WA
- Average UV index in January: 2
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in January
Sedro-Woolley, WA
- Average cloud cover in January: 60
The month with the most cloud cover is December (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in January
Sedro-Woolley, WA
- Average visibility in January: 5mi
The months with the highest visibility are June, July and August (6mi).
The months with the lowest visibility are January, February, March, April, May, September, October, November and December (5mi).
Sedro-Woolley, Washington, USA
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