January weather forecast
Reserve, WI

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Weather in January

January, the same as December, in Reserve, Wisconsin, is a freezing cold winter month, with temperature in the range of an average low of 5°F (-15°C) and an average high of 17.4°F (-8.1°C).

Temperature

Reserve's coldest month, January, registers temperatures that range from a high of 17.4°F (-8.1°C) to a low of 5°F (-15°C).

Humidity

January and February, with an average relative humidity of 92%, are the most humid months.

Rainfall

The month with the least rainfall is January, when the rain falls for 2.3 days and typically collects 0.71" (18mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In January, it is snowing for 19 days. Throughout January, 5.16" (131mm) of snow is accumulated. Throughout the year, there are 87.1 snowfall days, and 33.39" (848mm) of snow is accumulated.

Daylight

In January, the average length of the day is 9h and 9min.
On the first day of the month, sunrise is at 7:46 am and sunset at 4:31 pm. On the last day of January, sunrise is at 7:28 am and sunset at 5:09 pm CST.

Sunshine

With an average of 2.1h of sunshine, January has the least sunshine of the year.

UV index

January, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: In January, the maximum UV index of 1 translates into these guidelines:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. To guard against the harmful effects of the Sun, minimize exposure during midday. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.

Frequently asked questions

What are the coldest months?

January, noted for its average high-temperature of 17.4°F (-8.1°C) and an average low-temperature of 5°F (-15°C), is considered the coldest month.

How cold is it in January?

The high-temperature, in January, in Reserve, is 17.4°F (-8.1°C), while the low-temperature averages to 5°F (-15°C).

What is the most humid month?

The months with the highest humidity are January and February, with an average relative humidity of 92%.

What is the average humidity in January?

In January, the average relative humidity is 92%.

What is the driest month?

The month with the least rainfall is January, when the rain falls for 2.3 days and typically collects 0.71" (18mm) of precipitation.

How many days does it rain in January?

In Reserve, during January, the rain falls for 2.3 days and regularly aggregates up to 0.71" (18mm) of precipitation.

How many days does it snow in January?

In Reserve, in January, during 19 snowfall days, 5.16" (131mm) of snow is typically accumulated.

What is the average length of the day in January?

In Reserve, the average day length in January is 9h and 9min.

When are sunrise and sunset in January?

In January, on the first day of the month, sunrise is at 7:46 am and sunset at 4:31 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 5:09 pm CST.

What is the month with the least sunshine?

January has the least sunshine of the year, with an average of 2.1h of sunshine.

How many hours of sunshine does Reserve have in January?

In January, the average sunshine duration is 2.1h.

What is the month with the lowest UV index?

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

How high is the UV index in January?

In January, the average daily maximum UV index is 1. A UV Index of 2, and less, symbolizes 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
Reserve, WI

Average temperature in January - Reserve, WI
  • Average high temperature in January: 17.4°F

The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (17.4°F).

  • Average low temperature in January: 5°F

The month with the highest average low temperature is July (58.3°F).
The coldest month (with the lowest average low temperature) is January (5°F).

Average pressure in January
Reserve, WI

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

The month with the highest atmospheric pressure is February (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

Average wind speed in January
Reserve, WI

Average wind speed in January - Reserve, WI
  • Average wind speed in January: 8mph

The windiest month (with the highest average wind speed) is April (8.5mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).

Average humidity in January
Reserve, WI

Average humidity in January - Reserve, WI
  • Average humidity in January: 92%

The months with the highest relative humidity are January and February (92%).
The month with the lowest relative humidity is May (72%).

Average rainfall in January
Reserve, WI

Average rainfall in January - Reserve, WI
  • Average rainfall in January: 0.71"

The wettest month (with the highest rainfall) is May (2.76").
The driest month (with the least rainfall) is January (0.71").

Average rainfall days in January
Reserve, WI

Average rainfall days in January - Reserve, WI
  • Average rainfall days in January: 2.3 days

The month with the highest number of rainy days is June (15 days).
The month with the least rainy days is January (2.3 days).

Average snowfall in January
Reserve, WI

Average snowfall in January - Reserve, WI
  • Average snowfall in January: 5.16"

The month with the highest snowfall is December (7.17").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in January
Reserve, WI

Average snowfall days in January - Reserve, WI
  • Average snowfall days in January: 19 days

The month with the highest number of snowfall days is January (19 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).

  • Average sunshine in January: 2h and 1min

The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 2h and 6min).

Average sunshine days in January
Reserve, WI

Average sunshine days in January - Reserve, WI
  • Average sunshine days in January: 13.4 days

The month with the most sunshine days is September (16.2 days).
The month with the least sunshine days is April (10.9 days).

Average UV index in January
Reserve, WI

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

Average cloud cover in January
Reserve, WI

Average cloud cover in January - Reserve, WI
  • Average cloud cover in January: 80

The month with the most cloud cover is January (Cloud cover 80).
The month with the least cloud cover is July (Cloud cover 37).

Average visibility in January
Reserve, WI

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

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

Reserve, Wisconsin, USA

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