January weather forecast
Union Grove, WI

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Weather in January

January, like December, is another subzero cold winter month in Union Grove, Wisconsin, with temperature in the range of an average low of 16°F (-8.9°C) and an average high of 26.8°F (-2.9°C).

Temperature

In Union Grove, the lowest temperatures are generally noted in January, averaging a high of 26.8°F (-2.9°C) and a low of 16°F (-8.9°C).

Humidity

With an average relative humidity of 85%, January is the most humid month.

Rainfall

The month with the least rainfall is January, when the rain falls for 5 days and typically collects 1.5" (38mm) of precipitation.

Snowfall

January through April, October through December are months with snowfall. In Union Grove, in January, snow falls for 12.6 days, with typically accumulated 4.69" (119mm) of snow. Throughout the year, there are 50 snowfall days, and 18.66" (474mm) of snow is accumulated.

Daylight

The average length of the day in January is 9h and 28min.
On the first day of the month, sunrise is at 7:22 am and sunset at 4:28 pm. On the last day of January, sunrise is at 7:07 am and sunset at 5:03 pm CST.

Sunshine

With an average of 3.7h of sunshine, January has the least sunshine of the year.

UV index

In January, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for the average person.
Note: In January, the maximum UV index of 2 translates into these guidelines:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. To guard against the harmful effects of the Sun, minimize exposure during midday. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.

Frequently asked questions

What is the coldest time of year?

Union Grove witnesses the coldest weather in January, with temperatures averaging a high of 26.8°F (-2.9°C) and a low of 16°F (-8.9°C).

How cold is it in January?

The high-temperature in Union Grove during January is 26.8°F (-2.9°C) and the low-temperature is 16°F (-8.9°C).

What is the most humid month?

With an average relative humidity of 85%, January is the most humid month.

What is the average humidity in January in Union Grove?

In Union Grove, the average relative humidity in January is 85%.

What is the driest month?

January is the month with the least rainfall. Rain falls for 5 days and accumulates 1.5" (38mm) of precipitation.

How many days does it rain in January?

In Union Grove, in January, during 5 rainfall days, 1.5" (38mm) of precipitation is typically accumulated.

How many days does it snow in January?

In Union Grove, during January, snow falls for 12.6 days and regularly aggregates up to 4.69" (119mm) of snow.

How many hours of daylight does Union Grove have in January?

In Union Grove, the average day length in January is 9h and 28min.

When is the sunrise / sunset in January?

On the first day of January, sunrise is at 7:22 am and sunset at 4:28 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 5:03 pm CST.

What is the month with the least sunshine?

January has the least sunshine of the year, with an average of 3.7h of sunshine.

How many hours of sunshine does Union Grove have in January?

In January, the average sunshine duration is 3.7h.

What is the UV index reading in January?

In January, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unsafe 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
Union Grove, WI

Average temperature in January - Union Grove, WI
  • Average high temperature in January: 26.8°F

The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (26.8°F).

  • Average low temperature in January: 16°F

The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is January (16°F).

Average pressure in January
Union Grove, WI

Average pressure in January - Union Grove, 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).

Average wind speed in January
Union Grove, WI

Average wind speed in January - Union Grove, WI
  • Average wind speed in January: 10.9mph

The windiest month (with the highest average wind speed) is January (10.9mph).
The calmest month (with the lowest average wind speed) is August (6.7mph).

Average humidity in January
Union Grove, WI

Average humidity in January - Union Grove, WI
  • Average humidity in January: 85%

The month with the highest relative humidity is January (85%).
The months with the lowest relative humidity are October and November (76%).

Average rainfall in January
Union Grove, WI

Average rainfall in January - Union Grove, WI
  • Average rainfall in January: 1.5"

The wettest month (with the highest rainfall) is June (3.78").
The driest month (with the least rainfall) is January (1.5").

Average rainfall days in January
Union Grove, WI

Average rainfall days in January - Union Grove, WI
  • Average rainfall days in January: 5 days

The months with the highest number of rainy days are May and July (19 days).
The month with the least rainy days is February (4.9 days).

Average snowfall in January
Union Grove, WI

Average snowfall in January - Union Grove, WI
  • Average snowfall in January: 4.69"

The month with the highest snowfall is February (4.76").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in January
Union Grove, WI

Average snowfall days in January - Union Grove, WI
  • Average snowfall days in January: 12.6 days

The month with the highest number of snowfall days is January (12.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in January /
Average sunshine in January
Union Grove, WI

Average daylight in January / Average sunshine in January - Union Grove, 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 4min

The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

Average sunshine days in January
Union Grove, WI

Average sunshine days in January - Union Grove, WI
  • Average sunshine days in January: 14.4 days

The month with the most sunshine days is November (16 days).
The month with the least sunshine days is July (9.3 days).

Average UV index in January
Union Grove, WI

Average UV index in January - Union Grove, WI
  • Average UV index in January: 2

The month with the highest UV index is August (UV index 6).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in January
Union Grove, WI

Average cloud cover in January - Union Grove, WI
  • Average cloud cover in January: 62

The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 29).

Average visibility in January
Union Grove, WI

Average visibility in January - Union Grove, 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).

Union Grove, Wisconsin, USA

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