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
January is the month when Fort Atkinson, Iowa, experiences its coldest temperatures, averaging a high of 22.3°F (-5.4°C) and a low of 9.7°F (-12.4°C).Humidity
The months with the highest humidity in Fort Atkinson are January and February, with an average relative humidity of 89%.Rainfall
The month with the least rainfall is January, when the rain falls for 4.5 days and typically collects 1.1" (28mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Fort Atkinson, during January, snow falls for 14.3 days and regularly aggregates up to 5.63" (143mm) of snow. In Fort Atkinson, Iowa, during the entire year, snow falls for 60.9 days and aggregates up to 24.37" (619mm) of snow.Daylight
In Fort Atkinson, the average length of the day in January is 9h and 26min.On the first day of the month, sunrise is at 7:39 am and sunset at 4:42 pm. On the last day of January, sunrise is at 7:24 am and sunset at 5:18 pm CST.
Sunshine
With an average of 3.5h of sunshine, January has the least sunshine of the year.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: In January, the average maximum UV index of 1 translates into the following recommendations:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. 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 time of the year is the coldest in Fort Atkinson?
How cold is January in Fort Atkinson?
What are the most humid months?
What is the average humidity in January?
What is the driest month in Fort Atkinson?
How much does it rain in January?
How many days does it snow in January?
What is the average length of the day in January in Fort Atkinson?
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 is the month with the lowest UV index?
What is the UV index intensity in January?
Average temperature in January
Fort Atkinson, IA
- Average high temperature in January: 22.3°F
The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (22.3°F).
- Average low temperature in January: 9.7°F
The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is January (9.7°F).
Average pressure in January
Fort Atkinson, IA
- Average pressure in January: 30.13"Hg
The months with the highest atmospheric pressure are January and February (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in January
Fort Atkinson, IA
- Average wind speed in January: 10.2mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is August (7mph).
Average humidity in January
Fort Atkinson, IA
- Average humidity in January: 89%
The months with the highest relative humidity are January and February (89%).
The month with the lowest relative humidity is October (76%).
Average rainfall in January
Fort Atkinson, IA
- Average rainfall in January: 1.1"
The wettest month (with the highest rainfall) is June (5.04").
The driest month (with the least rainfall) is January (1.1").
Average rainfall days in January
Fort Atkinson, IA
- Average rainfall days in January: 4.5 days
The months with the highest number of rainy days are May and June (20.3 days).
The month with the least rainy days is February (4.4 days).
Average snowfall in January
Fort Atkinson, IA
- Average snowfall in January: 5.63"
The month with the highest snowfall is February (5.98").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Fort Atkinson, IA
- Average snowfall days in January: 14.3 days
The month with the highest number of snowfall days is January (14.3 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, IA
- 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 3min
The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in January
Fort Atkinson, IA
- Average sunshine days in January: 14 days
The month with the most sunshine days is November (16.2 days).
The month with the least sunshine days is June (7.1 days).
Average UV index in January
Fort Atkinson, IA
- Average UV index in January: 1
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in January
Fort Atkinson, IA
- Average cloud cover in January: 64
The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in January
Fort Atkinson, IA
- Average visibility in January: 5mi
The months with the highest visibility are March, April, May, June, August, September, October and November (6mi).
The months with the lowest visibility are January, February, July and December (5mi).
Fort Atkinson, Iowa, USA
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