January weather forecastYacolt, WA
January
Weather in January
January in Yacolt, Washington, is a chilly winter month, with an average temperature varying between 33.8°F (1°C) and 44.2°F (6.8°C).Temperature
Yacolt's January reports an average high-temperature of a chilly 44.2°F (6.8°C), exhibiting a minor difference from December. In Yacolt, the expected average low-temperature for January is an icy 33.8°F (1°C).Humidity
The average relative humidity in January in Yacolt is 84%.Rainfall
January is the month with the most rainfall in Yacolt. Rain falls for 18.8 days and accumulates 6.06" (154mm) of precipitation.Snowfall
January through March, November and December are months with snowfall in Yacolt, Washington. In Yacolt, in January, during 1.7 snowfall days, 2.05" (52mm) of snow is typically accumulated. In Yacolt, during the entire year, snow falls for 9.8 days and aggregates up to 7.4" (188mm) of snow.Daylight
The average length of the day in January is 9h and 9min.On the first day of January, sunrise is at 7:50 am and sunset at 4:35 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 5:13 pm PST.
Sunshine
January and February, with an average of 3.8h of sunshine, are months with the least sunshine in Yacolt, Washington.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 value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for the ordinary person.Note: In January, the maximum UV index of 2 transforms into these recommendations:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. 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
Yacolt, WA
- Average high temperature in January: 44.2°F
The warmest month (with the highest average high temperature) is August (79.3°F).
The month with the lowest average high temperature is December (42.6°F).
- Average low temperature in January: 33.8°F
The month with the highest average low temperature is August (52°F).
The coldest month (with the lowest average low temperature) is December (32.7°F).
Average pressure in January
Yacolt, WA
- 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
Yacolt, WA
- Average wind speed in January: 6.1mph
The windiest month (with the highest average wind speed) is January (6.1mph).
The calmest month (with the lowest average wind speed) is August (3.8mph).
Average humidity in January
Yacolt, WA
- Average humidity in January: 84%
The month with the highest relative humidity is February (86%).
The month with the lowest relative humidity is August (67%).
Average rainfall in January
Yacolt, WA
- Average rainfall in January: 6.06"
The wettest month (with the highest rainfall) is January (6.06").
The driest month (with the least rainfall) is July (0.35").
Average rainfall days in January
Yacolt, WA
- Average rainfall days in January: 18.8 days
The month with the highest number of rainy days is March (20.3 days).
The month with the least rainy days is August (5.1 days).
Average snowfall in January
Yacolt, WA
- Average snowfall in January: 2.05"
The month with the highest snowfall is February (2.76").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in January
Yacolt, WA
- Average snowfall days in January: 1.7 days
The month with the highest number of snowfall days is February (3.7 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
Yacolt, WA
- 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: 3h and 48min
The month with the most sunshine is August (Average sunshine: 10h and 48min).
The months with the least sunshine are January and February (Average sunshine: 3h and 48min).
Average sunshine days in January
Yacolt, WA
- Average sunshine days in January: 10.4 days
The month with the most sunshine days is July (24.1 days).
The month with the least sunshine days is February (8.2 days).
Average UV index in January
Yacolt, WA
- 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
Yacolt, WA
- Average cloud cover in January: 60
The month with the most cloud cover is February (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 26).
Average visibility in January
Yacolt, WA
- Average visibility in January: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).





