January weather forecast
Brill, WI

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Weather in January

January, like December, is another subzero cold winter month in Brill, Wisconsin, with an average temperature fluctuating between 5°F (-15°C) and 17.6°F (-8°C).

Temperature

In Brill, the lowest average temperatures are observed in January, with a high of 17.6°F (-8°C) and a low of 5°F (-15°C).

Humidity

The most humid month is January, with an average relative humidity of 93%.

Rainfall

January is the month with the least rainfall. Rain falls for 3.2 days and accumulates 0.79" (20mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In Brill, in January, during 18.3 snowfall days, 4.69" (119mm) of snow is typically accumulated. Throughout the year, there are 83.1 snowfall days, and 28.98" (736mm) of snow is accumulated.

Daylight

In Brill, the average length of the day in January is 9h and 11min.
On the first day of the month, sunrise is at 7:47 am and sunset at 4:33 pm. On the last day of January, sunrise is at 7:29 am and sunset at 5:10 pm CST.

Sunshine

January has the least sunshine of the year, with an average of 2.5h of sunshine.

UV index

January, November 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 ordinary individuals.
Note: A daily maximum UV index of 1 in January translates into the following instructions:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Updated: Jun 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What part of the year is the coldest?

January, characterized by an average high temperature of 17.6°F (-8°C) and a low temperature of 5°F (-15°C), is generally the coldest month.

How cold is January?

The average high-temperature and low-temperature during January are 17.6°F (-8°C) and 5°F (-15°C) respectively.

What is the most humid month?

The most humid month is January, with an average relative humidity of 93%.

What is the average humidity in January?

In Brill, the average relative humidity in January is 93%.

What is the driest month?

January is the month with the least rainfall. Rain falls for 3.2 days and accumulates 0.79" (20mm) of precipitation.

How many days does it rain in January?

In Brill, in January, it is raining for 3.2 days, with typically 0.79" (20mm) of accumulated precipitation.

How many days does it snow in January?

In Brill, in January, during 18.3 snowfall days, 4.69" (119mm) of snow is typically accumulated.

How many hours of daylight does Brill have in January?

In Brill, Wisconsin, the average day length in January is 9h and 11min.

When are sunrise and sunset in January?

On the first day of January, sunrise is at 7:47 am and sunset at 4:33 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 5:10 pm CST.

What is the month with the least sunshine?

January has the least sunshine of the year, with an average of 2.5h of sunshine.

How long on average sun shines in January?

The average sunshine duration in January is 2.5h.

What is the month with the lowest UV index?

The months with the lowest UV index are January, November 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 estimate of 2, and below, represents a minimal hazard to health from exposure to the Sun's 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
Brill, WI

Average temperature in January - Brill, WI
  • Average high temperature in January: 17.6°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 (17.6°F).

  • Average low temperature in January: 5°F

The month with the highest average low temperature is July (58.6°F).
The coldest month (with the lowest average low temperature) is January (5°F).

Average pressure in January
Brill, WI

Average pressure in January - Brill, WI
  • Average pressure in January: 30.11"Hg

The month with the highest atmospheric pressure is February (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

Average wind speed in January
Brill, WI

Average wind speed in January - Brill, WI
  • Average wind speed in January: 8.8mph

The windiest month (with the highest average wind speed) is April (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).

Average humidity in January
Brill, WI

Average humidity in January - Brill, WI
  • Average humidity in January: 93%

The month with the highest relative humidity is January (93%).
The month with the lowest relative humidity is May (76%).

Average rainfall in January
Brill, WI

Average rainfall in January - Brill, WI
  • Average rainfall in January: 0.79"

The wettest month (with the highest rainfall) is June (3.5").
The driest month (with the least rainfall) is January (0.79").

Average rainfall days in January
Brill, WI

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

The month with the highest number of rainy days is June (18.2 days).
The month with the least rainy days is February (2.5 days).

Average snowfall in January
Brill, WI

Average snowfall in January - Brill, WI
  • Average snowfall in January: 4.69"

The month with the highest snowfall is February (5.59").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in January
Brill, WI

Average snowfall days in January - Brill, WI
  • Average snowfall days in January: 18.3 days

The month with the highest number of snowfall days is January (18.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).

  • Average sunshine in January: 2h and 3min

The month with the most sunshine is July (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 2h and 30min).

Average sunshine days in January
Brill, WI

Average sunshine days in January - Brill, WI
  • Average sunshine days in January: 12.8 days

The month with the most sunshine days is September (15.4 days).
The month with the least sunshine days is June (9.7 days).

Average UV index in January
Brill, WI

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

The months with the highest UV index are May, June and July (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).

Average cloud cover in January
Brill, WI

Average cloud cover in January - Brill, WI
  • Average cloud cover in January: 75

The months with the most cloud cover are January and February (Cloud cover 75).
The month with the least cloud cover is July (Cloud cover 37).

Average visibility in January
Brill, WI

Average visibility in January - Brill, WI
  • Average visibility in January: 4mi

The months with the highest visibility are May and June (6mi).
The months with the lowest visibility are January, February and December (4mi).

Brill, Wisconsin, USA

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