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
The transition into January shows a subtle variation to a chilly 44.2°F (6.8°C) from December's 42.3°F (5.7°C) in the average high-temperature. January's nights in Onalaska observe an average temperature of 33.1°F (0.6°C).Humidity
The months with the highest humidity are January, February, November and December, with an average relative humidity of 88%.Rainfall
The month with the most rainfall is January, when the rain falls for 17.1 days and typically aggregates up to 3.54" (90mm) of precipitation.Snowfall
January through March, November and December are months with snowfall in Onalaska. The month with the most snowfall is January, when snow falls for 2.2 days and typically aggregates up to 1.81" (46mm) of snow.Daylight
In Onalaska, the average length of the day in January is 9h and 4min.On the first day of January in Onalaska, sunrise is at 7:54 am and sunset at 4:33 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 5:12 pm PST.
Sunshine
The months with the least sunshine are January, February and December, with an average of 3.7h of sunshine.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Onalaska. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for average individuals.Note: The daily high UV index of 2 during January translates into the following recommendations:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in Onalaska in January?
What is the most humid month in Onalaska?
What is the average humidity in January in Onalaska?
What is the wettest month in Onalaska?
How much does it rain in Onalaska in January?
What is the snowiest month in Onalaska?
How many days does it snow in January in Onalaska?
How many hours of daylight does Onalaska have in January?
When are sunrise and sunset in January in Onalaska?
What is the month with the least sunshine in Onalaska?
How many hours of sunshine does Onalaska have in January?
What are the months with the lowest UV index in Onalaska?
How high is the UV index in January in Onalaska?
Average temperature in January
Onalaska, WA
- Average high temperature in January: 44.2°F
The warmest month (with the highest average high temperature) is August (76.6°F).
The month with the lowest average high temperature is December (42.3°F).
- Average low temperature in January: 33.1°F
The month with the highest average low temperature is August (48.6°F).
The coldest month (with the lowest average low temperature) is December (32.4°F).
Average pressure in January
Onalaska, WA
- Average pressure in January: 30.1"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are August and September (30.01"Hg).
Average wind speed in January
Onalaska, WA
- Average wind speed in January: 4.8mph
The windiest month (with the highest average wind speed) is January (4.8mph).
The calmest months (with the lowest average wind speed) are August and September (3.5mph).
Average humidity in January
Onalaska, WA
- Average humidity in January: 88%
The months with the highest relative humidity are January, February, November and December (88%).
The month with the lowest relative humidity is July (73%).
Average rainfall in January
Onalaska, WA
- Average rainfall in January: 3.54"
The wettest month (with the highest rainfall) is January (3.54").
The driest months (with the least rainfall) are July and August (0.39").
Average rainfall days in January
Onalaska, WA
- Average rainfall days in January: 17.1 days
The month with the highest number of rainy days is March (19.4 days).
The month with the least rainy days is August (6.1 days).
Average snowfall in January
Onalaska, WA
- Average snowfall in January: 1.81"
The month with the highest snowfall is January (1.81").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in January
Onalaska, WA
- Average snowfall days in January: 2.2 days
The month with the highest number of snowfall days is February (3.4 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
Onalaska, WA
- Average daylight in January: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in January: 3h and 4min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The months with the least sunshine are January, February and December (Average sunshine: 3h and 42min).
Average sunshine days in January
Onalaska, WA
- Average sunshine days in January: 11.3 days
The month with the most sunshine days is August (22.1 days).
The month with the least sunshine days is February (9 days).
Average UV index in January
Onalaska, 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, November and December (UV index 2).
Average cloud cover in January
Onalaska, WA
- Average cloud cover in January: 63
The months with the most cloud cover are February and March (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 37).
Average visibility in January
Onalaska, WA
- 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).
Onalaska, Washington, USA
Weather forecast for your location
2. Allow the app to use your location