January weather forecast
Fort Atkinson, IA

Weather in January

January, the same as December, in Fort Atkinson, Iowa, is another subzero cold winter month, with an average temperature varying between 9.7°F (-12.4°C) and 22.3°F (-5.4°C).

Temperature

January is the coldest month, with an average high-temperature of 22.3°F (-5.4°C) and an average low-temperature of 9.7°F (-12.4°C).

Humidity

January and February, with an average relative humidity of 89%, are the most humid months in Fort Atkinson, Iowa.

Rainfall

January is the month with the least rainfall in Fort Atkinson. Rain falls for 4.5 days and accumulates 1.1" (28mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall in Fort Atkinson. In Fort Atkinson, during January, snow falls for 14.3 days and regularly aggregates up to 5.63" (143mm) of snow. In Fort Atkinson, 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 January, sunrise is at 7:39 am and sunset at 4:43 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 5:18 pm CST.

Sunshine

The month with the least sunshine is January, with an average of 3.5h of sunshine.

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 value of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: The average daily UV index of 1 in January transform into the following instructions:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
[Resources]

FAQ

What is the coldest month in Fort Atkinson?

With an average high-temperature of 22.3°F (-5.4°C) and an average low-temperature of 9.7°F (-12.4°C), January is the coldest month in Fort Atkinson.

What is the most humid month in Fort Atkinson?

The months with the highest humidity in Fort Atkinson, Iowa, are January and February, with an average relative humidity of 89%.

What is the average humidity in January in Fort Atkinson?

In Fort Atkinson, the average relative humidity in January is 89%.

What is the driest month in Fort Atkinson?

January is the month with the least rainfall in Fort Atkinson. Rain falls for 4.5 days and accumulates 1.1" (28mm) of precipitation.

How much does it rain in Fort Atkinson in January?

In Fort Atkinson, in January, during 4.5 rainfall days, 1.1" (28mm) of precipitation is typically accumulated.

How many days does it snow in January in Fort Atkinson?

In Fort Atkinson, in January, snow falls for 14.3 days, with typically accumulated 5.63" (143mm) of snow.

What is the average length of the day in January in Fort Atkinson?

The average day length in January is 9h and 26min.

When is the sunrise / sunset in January in Fort Atkinson?

On the first day of January in Fort Atkinson, Iowa, sunrise is at 7:39 am and sunset at 4:43 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 5:18 pm CST.

What is the month with the least sunshine in Fort Atkinson?

January has the least sunshine of the year in Fort Atkinson, Iowa, with an average of 3.5h of sunshine.

How many hours of sunshine does Fort Atkinson have in January?

In January, the average sunshine duration in Fort Atkinson, Iowa, is 3.5h.

What are the months with the lowest UV index in Fort Atkinson?

The months with the lowest UV index in Fort Atkinson are January, February, November and December, with an average maximum UV index of 1.

What is the UV index intensity in January in Fort Atkinson?

The average daily maximum UV index in January is 1. A UV Index reading of 2, and below, represents a low health threat from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Fort Atkinson, IA

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).

[Resources]

Average pressure in January
Fort Atkinson, IA

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).

[Resources]

Average wind speed in January
Fort Atkinson, IA

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).

[Resources]

Average humidity in January
Fort Atkinson, IA

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%).

[Resources]

Average rainfall in January
Fort Atkinson, IA

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").

[Resources]

Average rainfall days in January
Fort Atkinson, IA

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).

[Resources]

Average snowfall in January
Fort Atkinson, IA

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").

[Resources]

Average snowfall days in January
Fort Atkinson, IA

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).

[Resources]

Average daylight in January /
Average sunshine in January
Fort Atkinson, IA

Average daylight in January / Average sunshine in January - Fort Atkinson, IA
  • Average daylight in January: 9h and 26min

The month with the longest days is June (Average daylight: 15h and 19min).
The month with the shortest days is December (Average daylight: 9h and 3min).

  • Average sunshine in January: 3h and 30min

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).

[Resources]

Average sunshine days in January
Fort Atkinson, IA

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).

[Resources]

Average UV index in January
Fort Atkinson, IA

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).

[Resources]

Average cloud cover in January
Fort Atkinson, IA

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).

[Resources]

Average visibility in January
Fort Atkinson, IA

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).

[Resources]

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location
* you will be automatically redirected to the weather forecast for your location