January weather forecast
Mequon, WI

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Weather in January

Snowfall marks the year’s beginning, with January in Mequon, Wisconsin characterized by its frosty weather. The recent winter solstice means days are comparatively brief, with daylight peaking at 9.4 hours and the highest UV index value sitting at a low 1. The lowest temperature experienced is 16.2°F (-8.8°C) with a high reaching up to 25.9°F (-3.4°C). Gusts of biting wind and spills of snow make the outside world a white blanket, with temperatures being the lowest of the year. The quiet crunch of snow and sharp chill of the air imply a peaceful slumber, silent save for the occasional crisp gust blowing through the barren trees.

Temperature

Mequon's January weather, marked by an average high temperature of 25.9°F (-3.4°C) and an average low temperature of 16.2°F (-8.8°C), is the coldest in the year.

Humidity

The most humid month is January, with an average relative humidity of 86%.

Rainfall

In Mequon, Wisconsin, in January, it is raining for 5.5 days, with typically 1.02" (26mm) of accumulated precipitation. In Mequon, during the entire year, the rain falls for 136.6 days and collects up to 21.69" (551mm) of precipitation.

Snowfall

Months with snowfall are January through April, October through December. January is the month with the most snowfall in Mequon. Snow falls for 12.2 days and accumulates 2.76" (70mm) of snow.

Daylight

The average length of the day in January is 9h and 25min.
On the first day of the month, sunrise is at 7:24 am and sunset at 4:27 pm. On the last day of January, sunrise is at 7:08 am and sunset at 5:02 pm CST.

Sunshine

The month with the least sunshine in Mequon is January, with an average of 3.6h of sunshine.

UV index

January and December, with an average maximum UV index of 1, are months with the lowest UV index in Mequon. A UV Index estimate of 2, and below, represents a low health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum daily UV index of 1 in January converts into the following recommendations:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Opt for tightly woven and loose clothing to enhance protection from the Sun. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
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Frequently asked questions

What is the coldest month in Mequon?

January is the month that records the lowest temperatures, with averages ranging from a high of 25.9°F (-3.4°C) to a low of 16.2°F (-8.8°C).

How cold is it in Mequon in January?

The high-temperature, in January, in Mequon, is 25.9°F (-3.4°C), while the low-temperature averages to 16.2°F (-8.8°C).

What is the most humid month in Mequon?

With an average relative humidity of 86%, January is the most humid month in Mequon, Wisconsin.

What is the average humidity in January in Mequon?

The average relative humidity in January in Mequon is 86%.

How much does it rain in Mequon in January?

In January, in Mequon, the rain falls for 5.5 days. Throughout January, 1.02" (26mm) of precipitation is accumulated.

When does it snow the most in Mequon?

The month with the most snowfall is January, when snow falls for 12.2 days and typically aggregates up to 2.76" (70mm) of snow.

How many days does it snow in January in Mequon?

In Mequon, Wisconsin, during January, snow falls for 12.2 days and regularly aggregates up to 2.76" (70mm) of snow.

How many hours of daylight does Mequon have in January?

The average day length in January in Mequon, Wisconsin, is 9h and 25min.

When is the sunrise / sunset in January in Mequon?

In January, on the first day of the month, sunrise is at 7:24 am and sunset at 4:27 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 5:02 pm CST.

What is the month with the least sunshine in Mequon?

January has the least sunshine of the year, with an average of 3.6h of sunshine.

How long on average sun shines in January in Mequon?

In January, the average sunshine duration in Mequon is 3.6h.

What are the months with the lowest UV index in Mequon?

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

What is the UV index reading in January in Mequon?

In Mequon, the average daily maximum UV index in January is 1. A UV Index reading of 2, and below, represents a low health threat from exposure to Sun's UV rays.
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
Mequon, WI

Average temperature in January - Mequon, WI
  • Average high temperature in January: 25.9°F

The warmest month (with the highest average high temperature) is July (77°F).
The month with the lowest average high temperature is January (25.9°F).

  • Average low temperature in January: 16.2°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (16.2°F).

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Average pressure in January
Mequon, WI

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

The months with the highest atmospheric pressure are January, February and March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in January
Mequon, WI

Average wind speed in January - Mequon, WI
  • Average wind speed in January: 11.7mph

The windiest month (with the highest average wind speed) is January (11.7mph).
The calmest month (with the lowest average wind speed) is July (7.3mph).

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Average humidity in January
Mequon, WI

Average humidity in January - Mequon, WI
  • Average humidity in January: 86%

The month with the highest relative humidity is January (86%).
The months with the lowest relative humidity are October and November (76%).

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Average rainfall in January
Mequon, WI

Average rainfall in January - Mequon, WI
  • Average rainfall in January: 1.02"

The wettest month (with the highest rainfall) is July (2.8").
The driest months (with the least rainfall) are February and December (0.94").

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Average rainfall days in January
Mequon, WI

Average rainfall days in January - Mequon, WI
  • Average rainfall days in January: 5.5 days

The month with the highest number of rainy days is July (15.7 days).
The month with the least rainy days is February (4.3 days).

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Average snowfall in January
Mequon, WI

Average snowfall in January - Mequon, WI
  • Average snowfall in January: 2.76"

The month with the highest snowfall is January (2.76").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in January
Mequon, WI

Average snowfall days in January - Mequon, WI
  • Average snowfall days in January: 12.2 days

The month with the highest number of snowfall days is January (12.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in January / Average sunshine in January - Mequon, 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 0min).

  • Average sunshine in January: 3h and 4min

The months with the most sunshine are July and August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).

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Average sunshine days in January
Mequon, WI

Average sunshine days in January - Mequon, WI
  • Average sunshine days in January: 14.1 days

The month with the most sunshine days is December (16.8 days).
The month with the least sunshine days is July (11.9 days).

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Average UV index in January
Mequon, WI

Average UV index in January - Mequon, 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 and December (UV index 1).

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Average cloud cover in January
Mequon, WI

Average cloud cover in January - Mequon, WI
  • Average cloud cover in January: 62

The month with the most cloud cover is January (Cloud cover 62).
The months with the least cloud cover are July and August (Cloud cover 28).

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Average visibility in January
Mequon, WI

Average visibility in January - Mequon, WI
  • Average visibility in January: 6mi

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

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Mequon, Wisconsin, USA

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