January weather forecast
Potosi, WI

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Weather in January

January, the same as December, in Potosi, Wisconsin, is another subzero cold winter month, with temperature in the range of an average high of 24.3°F (-4.3°C) and an average low of 12°F (-11.1°C).

Temperature

Potosi's January weather reaches an average high of 24.3°F (-4.3°C) and an average low of 12°F (-11.1°C), making it the coldest month.

Humidity

With an average relative humidity of 88%, January is the most humid month in Potosi.

Rainfall

The months with the least rainfall are January and February Rain falls for 4.5 days and accumulates 1.02" (26mm) of rain.

Snowfall

January through April, October through December are months with snowfall in Potosi, Wisconsin. The month with the most snowfall is January, when snow falls for 13.7 days and typically aggregates up to 4.29" (109mm) of snow.

Daylight

The average length of the day in January in Potosi is 9h and 28min.
On the first day of the month, sunrise is at 7:33 am and sunset at 4:39 pm. On the last day of January, sunrise is at 7:18 am and sunset at 5:14 pm CST.

Sunshine

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

UV index

The months with the lowest UV index are January, November and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum UV index of 1 during January leads to these instructions:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. To cut down UV radiation exposure by about half, sport a wide-brim hat. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
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Frequently asked questions

What are the coldest months in Potosi?

Potosi notes the coldest temperatures in January, with a average high of 24.3°F (-4.3°C) and a low of 12°F (-11.1°C).

How cold is January in Potosi?

The high-temperature, in January, in Potosi, records 24.3°F (-4.3°C), while the low-temperature is 12°F (-11.1°C).

What is the most humid month in Potosi?

The most humid month in Potosi, Wisconsin, is January, with an average relative humidity of 88%.

What is the average humidity in January in Potosi?

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

What is the driest month in Potosi?

The months with the least rainfall in Potosi are January and February Rain falls for 4.5 days and accumulates 1.02" (26mm) of rain.

How much does it rain in Potosi in January?

In Potosi, in January, it is raining for 4.5 days, with typically 1.02" (26mm) of accumulated precipitation.

When does it snow the most in Potosi?

January is the month with the most snowfall. Snow falls for 13.7 days and accumulates 4.29" (109mm) of snow.

How much does it snow in Potosi in January?

In Potosi, Wisconsin, in January, snow falls for 13.7 days, with typically accumulated 4.29" (109mm) of snow.

What is the average length of the day in January in Potosi?

In Potosi, Wisconsin, the average day length in January is 9h and 28min.

When is the sunrise / sunset in January in Potosi?

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 5:14 pm CST.

What is the month with the least sunshine in Potosi?

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

How long on average sun shines in January in Potosi?

In Potosi, Wisconsin, the average sunshine duration in January is 3.5h.

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

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

What is the UV index reading in January in Potosi?

The average daily maximum UV index in January is 1. A UV Index of 2, and less, symbolizes a low health risk from exposure to Sun's UV rays.
Today
Tomorrow
Long-term
YearJanuaryFMAMJJASOND
Dec
January
Feb
Average high temperature
31.1°F -0.5°C
24.3°F -4.3°C
28.4°F -2°C
Average low temperature
20.8°F -6.2°C
12°F -11.1°C
14.7°F -9.6°C
Average pressure
30.1" 765mmHg
30.13" 765mmHg
30.12" 765mmHg
Average wind speed
9.7mph 15.6km/h
10.1mph 16.3km/h
10mph 16.1km/h
Average max. wind speed
10.4mph 16.7km/h
10.7mph 17.2km/h
10.6mph 17.1km/h
Average wind speed gusts
15.2mph 24.5km/h
16mph 25.7km/h
16.2mph 26.1km/h
Average humidity
83%
88%
87%
Average rainfall
1.1" 28mm
1.02" 26mm
1.02" 26mm
Average rainfall days
6.5
4.5
4.1
Average snowfall
2.95" 75mm
4.29" 109mm
3.9" 99mm
Average snowfall days
11.3
13.7
11.9
Average daylight
9h 1min
9h 3min
10h 4min
Average sunshine
4h 1min
3h 3min
3h 4min
Average sunshine days
16.7
14.7
13.3
Average UV index
1
1
2
Average cloud cover
59%
63%
59%
Average visibility
6mi 9.7km
5mi 8km
5mi 8km

Average temperature in January
Potosi, WI

Average temperature in January - Potosi, WI
  • Average high temperature in January: 24.3°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 (24.3°F).

  • Average low temperature in January: 12°F

The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (12°F).

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Average pressure in January
Potosi, WI

Average pressure in January - Potosi, WI
  • Average pressure in January: 30.13"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

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Average wind speed in January
Potosi, WI

Average wind speed in January - Potosi, WI
  • Average wind speed in January: 10.1mph

The windiest month (with the highest average wind speed) is April (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).

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Average humidity in January
Potosi, WI

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

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

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Average rainfall in January
Potosi, WI

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

The wettest month (with the highest rainfall) is June (3.5").
The driest months (with the least rainfall) are January and February (1.02").

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Average rainfall days in January
Potosi, WI

Average rainfall days in January - Potosi, WI
  • Average rainfall days in January: 4.5 days

The months with the highest number of rainy days are May and June (18.3 days).
The month with the least rainy days is February (4.1 days).

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Average snowfall in January
Potosi, WI

Average snowfall in January - Potosi, WI
  • Average snowfall in January: 4.29"

The month with the highest snowfall is January (4.29").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in January
Potosi, WI

Average snowfall days in January - Potosi, WI
  • Average snowfall days in January: 13.7 days

The month with the highest number of snowfall days is January (13.7 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
Potosi, WI

Average daylight in January / Average sunshine in January - Potosi, 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 48min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).

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Average sunshine days in January
Potosi, WI

Average sunshine days in January - Potosi, WI
  • Average sunshine days in January: 14.7 days

The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is May (9.3 days).

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Average UV index in January
Potosi, WI

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

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

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Average cloud cover in January
Potosi, WI

Average cloud cover in January - Potosi, 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
Potosi, WI

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

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

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Potosi, Wisconsin, USA

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