January weather forecast
Birnamwood, WI

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Weather in January

January, the same as December, in Birnamwood, Wisconsin, is another subzero cold winter month, with an average temperature varying between 8.2°F (-13.2°C) and 19.8°F (-6.8°C).

Temperature

The coldest temperatures occur during January, when averages reach a peak of 19.8°F (-6.8°C) and a low of 8.2°F (-13.2°C).

Humidity

January and February, with an average relative humidity of 91%, are the most humid months.

Rainfall

The month with the least rainfall is January, when the rain falls for 3.2 days and typically collects 0.43" (11mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. January is the month with the most snowfall. Snow falls for 15.2 days and accumulates 2.17" (55mm) of snow.

Daylight

In Birnamwood, the average length of the day in January is 9h and 15min.
On the first day of the month, sunrise is at 7:34 am and sunset at 4:25 pm. On the last day of January, sunrise is at 7:17 am and sunset at 5:02 pm CST.

Sunshine

With an average of 2.8h of sunshine, January has the least sunshine of the year.

UV index

The months with the lowest UV index are January, February and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: In January, the maximum UV index of 1 translates into these guidelines:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Updated: Jul 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What part of the year is the coldest?

With average high and low temperatures of 19.8°F (-6.8°C) and 8.2°F (-13.2°C) respectively, January is Birnamwood's coldest month.

How cold is it in January?

An average high-temperature, in January, in Birnamwood, is 19.8°F (-6.8°C) and the average low-temperature is 8.2°F (-13.2°C).

What are the most humid months?

The months with the highest humidity are January and February, with an average relative humidity of 91%.

What is the average humidity in January?

In January, the average relative humidity in Birnamwood is 91%.

What is the driest month in Birnamwood?

The month with the least rainfall is January, when the rain falls for 3.2 days and typically collects 0.43" (11mm) of precipitation.

How many days does it rain in January?

In Birnamwood, during January, the rain falls for 3.2 days and regularly aggregates up to 0.43" (11mm) of precipitation.

When does it snow the most?

January is the month with the most snowfall. Snow falls for 15.2 days and accumulates 2.17" (55mm) of snow.

How many days does it snow in January in Birnamwood?

In Birnamwood, during January, snow falls for 15.2 days and regularly aggregates up to 2.17" (55mm) of snow.

How many hours of daylight does Birnamwood have in January?

The average day length in January is 9h and 15min.

When is the sunrise / sunset in January?

On the first day of January, sunrise is at 7:34 am and sunset at 4:25 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 5:02 pm CST.

What is the month with the least sunshine?

The month with the least sunshine is January, with an average of 2.8h of sunshine.

How many hours of sunshine does Birnamwood have in January?

In Birnamwood, the average sunshine duration in January is 2.8h.

What are the months with the lowest UV index?

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

What is the UV index intensity in January?

In January, the average daily maximum UV index is 1. A UV Index value of 2, and less, symbolizes a minimal health vulnerability 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
Birnamwood, WI

Average temperature in January - Birnamwood, WI
  • Average high temperature in January: 19.8°F

The warmest month (with the highest average high temperature) is July (77.2°F).
The month with the lowest average high temperature is January (19.8°F).

  • Average low temperature in January: 8.2°F

The month with the highest average low temperature is July (58.5°F).
The coldest month (with the lowest average low temperature) is January (8.2°F).

Average pressure in January
Birnamwood, WI

Average pressure in January - Birnamwood, WI
  • Average pressure in January: 30.09"Hg

The month with the highest atmospheric pressure is February (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in January
Birnamwood, WI

Average wind speed in January - Birnamwood, WI
  • Average wind speed in January: 9.1mph

The windiest month (with the highest average wind speed) is April (9.4mph).
The calmest month (with the lowest average wind speed) is August (7mph).

Average humidity in January
Birnamwood, WI

Average humidity in January - Birnamwood, WI
  • Average humidity in January: 91%

The months with the highest relative humidity are January and February (91%).
The month with the lowest relative humidity is April (76%).

Average rainfall in January
Birnamwood, WI

Average rainfall in January - Birnamwood, WI
  • Average rainfall in January: 0.43"

The wettest months (with the highest rainfall) are May and June (1.46").
The driest month (with the least rainfall) is January (0.43").

Average rainfall days in January
Birnamwood, WI

Average rainfall days in January - Birnamwood, WI
  • Average rainfall days in January: 3.2 days

The month with the highest number of rainy days is May (13.4 days).
The month with the least rainy days is February (2.9 days).

Average snowfall in January
Birnamwood, WI

Average snowfall in January - Birnamwood, WI
  • Average snowfall in January: 2.17"

The month with the highest snowfall is January (2.17").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in January
Birnamwood, WI

Average snowfall days in January - Birnamwood, WI
  • Average snowfall days in January: 15.2 days

The month with the highest number of snowfall days is January (15.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in January /
Average sunshine in January
Birnamwood, WI

Average daylight in January / Average sunshine in January - Birnamwood, WI
  • Average daylight in January: 9h and 1min

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 48min).

  • Average sunshine in January: 2h and 5min

The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).

Average sunshine days in January
Birnamwood, WI

Average sunshine days in January - Birnamwood, WI
  • Average sunshine days in January: 17.9 days

The month with the most sunshine days is October (18.3 days).
The month with the least sunshine days is April (13.4 days).

Average UV index in January
Birnamwood, WI

Average UV index in January - Birnamwood, WI
  • Average UV index in January: 1

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February and December (UV index 1).

Average cloud cover in January
Birnamwood, WI

Average cloud cover in January - Birnamwood, WI
  • Average cloud cover in January: 72

The month with the most cloud cover is January (Cloud cover 72).
The months with the least cloud cover are July and August (Cloud cover 37).

Average visibility in January
Birnamwood, WI

Average visibility in January - Birnamwood, WI
  • Average visibility in January: 5mi

The months with the highest visibility are April, May, June, October and November (6mi).
The months with the lowest visibility are January, February, March, July, August, September and December (5mi).

Birnamwood, Wisconsin, USA

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