January weather forecast
Sussex, WI

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Weather in January

January, the same as December, in Sussex, Wisconsin, is a freezing cold winter month, with temperature in the range of an average high of 25.2°F (-3.8°C) and an average low of 13.6°F (-10.2°C).

Temperature

January, with average temperatures reaching a high of 25.2°F (-3.8°C) and a low of 13.6°F (-10.2°C), is the coldest month.

Humidity

With an average relative humidity of 87%, January is the most humid month in Sussex.

Rainfall

In Sussex, in January, it is raining for 5.4 days, with typically 1.54" (39mm) of accumulated precipitation. In Sussex, during the entire year, the rain falls for 149.2 days and collects up to 28.54" (725mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. January is the month with the most snowfall in Sussex. Snow falls for 15.4 days and accumulates 5.43" (138mm) of snow.

Daylight

In Sussex, Wisconsin, the average length of the day in January is 9h and 26min.
On the first day of January, sunrise is at 7:24 am and sunset at 4:28 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 5:03 pm CST.

Sunshine

January has the least sunshine of the year, with an average of 3.5h of sunshine.

UV index

January 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 unprotected exposure to Sun's UV rays for average individuals.
Note: In January, a daily maximum UV index of 1 leads to the following instructions:
In contrast to children, who must always be shielded from the sun, most people can tolerate up to an hour of sun exposure without any burns. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
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Frequently asked questions

What month is the coldest in Sussex?

January is the month when Sussex experiences its coldest temperatures, averaging a high of 25.2°F (-3.8°C) and a low of 13.6°F (-10.2°C).

How cold is it in Sussex in January?

The high-temperature, in January, in Sussex, records 25.2°F (-3.8°C), while the low-temperature is 13.6°F (-10.2°C).

What is the most humid month in Sussex?

The most humid month in Sussex is January, with an average relative humidity of 87%.

What is the average humidity in January in Sussex?

In January, the average relative humidity is 87%.

How much does it rain in Sussex in January?

In Sussex, Wisconsin, during January, the rain falls for 5.4 days and regularly aggregates up to 1.54" (39mm) of precipitation.

What is the snowiest month in Sussex?

January is the month with the most snowfall in Sussex. Snow falls for 15.4 days and accumulates 5.43" (138mm) of snow.

How much does it snow in Sussex in January?

In Sussex, Wisconsin, in January, snow falls for 15.4 days, with typically accumulated 5.43" (138mm) of snow.

How many hours of daylight does Sussex have in January?

In January, the average day length in Sussex, Wisconsin, is 9h and 26min.

What time are sunrise and sunset in January in Sussex?

In January, on the first day of the month, sunrise is at 7:24 am and sunset at 4:28 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 5:03 pm CST.

What is the month with the least sunshine in Sussex?

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

How long on average sun shines in January in Sussex?

The average sunshine duration in January in Sussex, Wisconsin, is 3.5h.

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

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

What is the UV index intensity in January in Sussex?

In Sussex, the average daily maximum UV index in January is 1. A UV Index value of 2, and less, symbolizes a low health risk 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
Sussex, WI

Average temperature in January - Sussex, WI
  • Average high temperature in January: 25.2°F

The warmest month (with the highest average high temperature) is July (78.1°F).
The month with the lowest average high temperature is January (25.2°F).

  • Average low temperature in January: 13.6°F

The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (13.6°F).

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Average pressure in January
Sussex, WI

Average pressure in January - Sussex, WI
  • Average pressure in January: 30.1"Hg

The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in January
Sussex, WI

Average wind speed in January - Sussex, WI
  • Average wind speed in January: 10.5mph

The windiest month (with the highest average wind speed) is January (10.5mph).
The calmest months (with the lowest average wind speed) are July and August (6.7mph).

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Average humidity in January
Sussex, WI

Average humidity in January - Sussex, WI
  • Average humidity in January: 87%

The month with the highest relative humidity is January (87%).
The months with the lowest relative humidity are April and October (77%).

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Average rainfall in January
Sussex, WI

Average rainfall in January - Sussex, WI
  • Average rainfall in January: 1.54"

The wettest month (with the highest rainfall) is June (3.43").
The driest month (with the least rainfall) is February (1.46").

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Average rainfall days in January
Sussex, WI

Average rainfall days in January - Sussex, WI
  • Average rainfall days in January: 5.4 days

The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is February (5.3 days).

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Average snowfall in January
Sussex, WI

Average snowfall in January - Sussex, WI
  • Average snowfall in January: 5.43"

The month with the highest snowfall is January (5.43").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in January
Sussex, WI

Average snowfall days in January - Sussex, WI
  • Average snowfall days in January: 15.4 days

The month with the highest number of snowfall days is January (15.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in January / Average sunshine in January - Sussex, 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 6min).

  • Average sunshine in January: 3h and 3min

The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).

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Average sunshine days in January
Sussex, WI

Average sunshine days in January - Sussex, WI
  • Average sunshine days in January: 12.1 days

The month with the most sunshine days is November (15.9 days).
The months with the least sunshine days are June and July (10.3 days).

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Average UV index in January
Sussex, WI

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

The month with the highest UV index is June (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
Sussex, WI

Average cloud cover in January - Sussex, WI
  • Average cloud cover in January: 63

The month with the most cloud cover is January (Cloud cover 63).
The months with the least cloud cover are August and September (Cloud cover 30).

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Average visibility in January
Sussex, WI

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

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

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Sussex, Wisconsin, USA

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