January weather forecast
Lancaster, WI

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Weather in January

January, the same as December, in Lancaster, Wisconsin, is a freezing cold winter month, with an average temperature varying between 11.3°F (-11.5°C) and 23.4°F (-4.8°C).

Temperature

January is the month when Lancaster experiences its coldest temperatures, averaging a high of 23.4°F (-4.8°C) and a low of 11.3°F (-11.5°C).

Humidity

January and February, with an average relative humidity of 88%, are the most humid months.

Rainfall

The month with the least rainfall in Lancaster is January, when the rain falls for 3.8 days and typically collects 1.06" (27mm) of precipitation.

Snowfall

January through April, October through December are months with snowfall in Lancaster. The month with the most snowfall is January, when snow falls for 12.3 days and typically aggregates up to 4.8" (122mm) of snow.

Daylight

The average length of the day in January in Lancaster is 9h and 28min.
On the first day of January in Lancaster, sunrise is at 7:33 am and sunset at 4:39 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 5:13 pm CST.

Sunshine

With an average of 3.5h of sunshine, January has the least sunshine of the year in Lancaster.

UV index

January, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: In January, a daily maximum UV index of 1 leads to the following instructions:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. To guard against the harmful effects of the Sun, minimize exposure during midday. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
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Frequently asked questions

What time of the year is the coldest in Lancaster?

In Lancaster, January is known for its average lowest temperatures, reaching a high of 23.4°F (-4.8°C) and a low of 11.3°F (-11.5°C).

How cold is January in Lancaster?

In Lancaster, in January, the average high-temperature is 23.4°F (-4.8°C), and the average low-temperature is 11.3°F (-11.5°C).

What are the most humid months in Lancaster?

January and February, with an average relative humidity of 88%, are most humid months.

What is the average humidity in January in Lancaster?

In January, the average relative humidity in Lancaster, Wisconsin, is 88%.

What is the driest month in Lancaster?

The month with the least rainfall in Lancaster is January, when the rain falls for 3.8 days and typically collects 1.06" (27mm) of precipitation.

How many days does it rain in January in Lancaster?

In Lancaster, Wisconsin, during January, the rain falls for 3.8 days and regularly aggregates up to 1.06" (27mm) of precipitation.

When does it snow the most in Lancaster?

January is the month with the most snowfall in Lancaster, Wisconsin. Snow falls for 12.3 days and accumulates 4.8" (122mm) of snow.

How much does it snow in Lancaster in January?

In Lancaster, during January, snow falls for 12.3 days and regularly aggregates up to 4.8" (122mm) of snow.

How many hours of daylight does Lancaster have in January?

The average day length in January in Lancaster is 9h and 28min.

When are sunrise and sunset in January in Lancaster?

In January, on the first day of the month, sunrise is at 7:33 am and sunset at 4:39 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 5:13 pm CST.

What is the month with the least sunshine in Lancaster?

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

How long on average sun shines in January in Lancaster?

The average sunshine duration in January in Lancaster is 3.5h.

What is the month with the lowest UV index in Lancaster?

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

How high is the UV index in January in Lancaster?

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

Average temperature in January - Lancaster, WI
  • Average high temperature in January: 23.4°F

The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (23.4°F).

  • Average low temperature in January: 11.3°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 (11.3°F).

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Average pressure in January
Lancaster, WI

Average pressure in January - Lancaster, WI
  • Average pressure in January: 30.12"Hg

The months with the highest atmospheric pressure are January and February (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

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Average wind speed in January
Lancaster, WI

Average wind speed in January - Lancaster, WI
  • Average wind speed in January: 9.6mph

The windiest month (with the highest average wind speed) is April (9.9mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).

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Average humidity in January
Lancaster, WI

Average humidity in January - Lancaster, WI
  • Average humidity in January: 88%

The months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is October (76%).

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Average rainfall in January
Lancaster, WI

Average rainfall in January - Lancaster, WI
  • Average rainfall in January: 1.06"

The wettest month (with the highest rainfall) is June (3.62").
The driest month (with the least rainfall) is January (1.06").

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Average rainfall days in January
Lancaster, WI

Average rainfall days in January - Lancaster, WI
  • Average rainfall days in January: 3.8 days

The month with the highest number of rainy days is May (18.5 days).
The months with the least rainy days are January and February (3.8 days).

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Average snowfall in January
Lancaster, WI

Average snowfall in January - Lancaster, WI
  • Average snowfall in January: 4.8"

The month with the highest snowfall is January (4.8").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in January
Lancaster, WI

Average snowfall days in January - Lancaster, WI
  • Average snowfall days in January: 12.3 days

The month with the highest number of snowfall days is January (12.3 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
Lancaster, WI

Average daylight in January / Average sunshine in January - Lancaster, WI
  • Average daylight in January: 9h and 3min

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 months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).

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Average sunshine days in January
Lancaster, WI

Average sunshine days in January - Lancaster, WI
  • Average sunshine days in January: 17.6 days

The month with the most sunshine days is November (18.2 days).
The month with the least sunshine days is June (10 days).

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Average UV index in January
Lancaster, WI

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

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, November and December (UV index 1).

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Average cloud cover in January
Lancaster, WI

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

The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 31).

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Average visibility in January
Lancaster, WI

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

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

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Lancaster, Wisconsin, USA

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