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
Fort Atkinson's coldest month, January, registers temperatures that range from a high of 24.3°F (-4.3°C) to a low of 12°F (-11.1°C).Humidity
The most humid month is January, with an average relative humidity of 88%.Rainfall
The months with the least rainfall are January and February Rain falls for 5.2 days and accumulates 1.42" (36mm) of rain.Snowfall
Months with snowfall in Fort Atkinson are January through May, October through December. In Fort Atkinson, in January, snow falls for 15.4 days, with typically accumulated 5.24" (133mm) of snow. Throughout the year, there are 58 snowfall days, and 21.85" (555mm) of snow is accumulated.Daylight
In January, the average length of the day is 9h and 27min.On the first day of the month, sunrise is at 7:26 am and sunset at 4:31 pm. On the last day of January, sunrise is at 7:11 am and sunset at 5:06 pm CST.
Sunshine
January has the least sunshine of the year, with an average of 3.4h of sunshine.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for the average person.Note: The maximum daily UV index of 1 during January translates into the following directions:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. Direct Sun exposure should be minimized especially during midday when radiation is most intense. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest month?
How cold is it in January?
What is the most humid month?
What is the average humidity in January?
What is the driest month?
How many days does it rain in January?
How many days does it snow in January?
What is the average length of the day in January?
What time are sunrise and sunset in January?
What is the month with the least sunshine?
How many hours of sunshine does Fort Atkinson have in January?
What are the months with the lowest UV index?
What is the UV index reading in January?
Average temperature in January
Fort Atkinson, WI
- Average high temperature in January: 24.3°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (24.3°F).
- Average low temperature in January: 12°F
The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is January (12°F).
Average pressure in January
Fort Atkinson, WI
- Average pressure in January: 30.11"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in January
Fort Atkinson, WI
- Average wind speed in January: 9.6mph
The windiest month (with the highest average wind speed) is April (9.9mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).
Average humidity in January
Fort Atkinson, WI
- Average humidity in January: 88%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is April (76%).
Average rainfall in January
Fort Atkinson, WI
- Average rainfall in January: 1.42"
The wettest month (with the highest rainfall) is June (3.78").
The driest months (with the least rainfall) are January and February (1.42").
Average rainfall days in January
Fort Atkinson, WI
- Average rainfall days in January: 5.2 days
The month with the highest number of rainy days is May (19.6 days).
The month with the least rainy days is February (5 days).
Average snowfall in January
Fort Atkinson, WI
- Average snowfall in January: 5.24"
The month with the highest snowfall is February (5.39").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Fort Atkinson, WI
- Average snowfall days in January: 15.4 days
The month with the highest number of snowfall days is January (15.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Fort Atkinson, WI
- 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: 3h and 2min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in January
Fort Atkinson, WI
- Average sunshine days in January: 12.5 days
The month with the most sunshine days is November (16.1 days).
The months with the least sunshine days are May and June (9.8 days).
Average UV index in January
Fort Atkinson, WI
- Average UV index in January: 1
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in January
Fort Atkinson, WI
- Average cloud cover in January: 65
The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in January
Fort Atkinson, WI
- Average visibility in January: 5mi
The months with the highest visibility are March, April, May, June, October and November (6mi).
The months with the lowest visibility are January, February, July, August, September and December (5mi).
Fort Atkinson, Wisconsin, USA
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