January weather forecast
Shamrock, WI

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Weather in January

January, like December, is another subzero cold winter month in Shamrock, Wisconsin, with an average temperature fluctuating between 7.3°F (-13.7°C) and 20.7°F (-6.3°C).

Temperature

Shamrock notes the coldest temperatures in January, with a high average of 20.7°F (-6.3°C) and a low of 7.3°F (-13.7°C).

Humidity

January is the most humid month in Shamrock, with an average relative humidity of 91%.

Rainfall

The month with the least rainfall is January, when the rain falls for 3.7 days and typically collects 0.51" (13mm) of precipitation.

Snowfall

Months with snowfall in Shamrock are January through May, October through December. In Shamrock, Wisconsin, in January, during 15.4 snowfall days, 2.8" (71mm) of snow is typically accumulated. In Shamrock, during the entire year, snow falls for 62.1 days and aggregates up to 13.11" (333mm) of snow.

Daylight

The average length of the day in January in Shamrock is 9h and 20min.
On the first day of the month, sunrise is at 7:38 am and sunset at 4:34 pm. On the last day of January, sunrise is at 7:22 am and sunset at 5:11 pm CST.

Sunshine

January has the least sunshine of the year, with an average of 3h of sunshine.

UV index

The months with the lowest UV index are January, February, 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 rays for average individuals.
Note: The daily high UV index of 1 during January translates into the following recommendations:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. When the Sun is at its strongest around midday, find shade and limit exposure. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest time of year in Shamrock?

Shamrock's coldest month, January, registers temperatures that range from a high of 20.7°F (-6.3°C) to a low of 7.3°F (-13.7°C).

How cold is it in Shamrock in January?

The high-temperature in Shamrock, Wisconsin, during January is 20.7°F (-6.3°C) and the low-temperature is 7.3°F (-13.7°C).

What is the most humid month in Shamrock?

With an average relative humidity of 91%, January is the most humid month.

What is the average humidity in January in Shamrock?

In Shamrock, the average relative humidity in January is 91%.

What is the driest month in Shamrock?

The month with the least rainfall in Shamrock is January, when the rain falls for 3.7 days and typically collects 0.51" (13mm) of precipitation.

How much does it rain in Shamrock in January?

In Shamrock, Wisconsin, in January, during 3.7 rainfall days, 0.51" (13mm) of precipitation is typically accumulated.

How much does it snow in Shamrock in January?

In Shamrock, Wisconsin, in January, snow falls for 15.4 days, with typically accumulated 2.8" (71mm) of snow.

How many hours of daylight does Shamrock have in January?

In Shamrock, the average day length in January is 9h and 20min.

When are sunrise and sunset in January in Shamrock?

On the first day of January in Shamrock, Wisconsin, sunrise is at 7:38 am and sunset at 4:34 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 5:11 pm CST.

What is the month with the least sunshine in Shamrock?

With an average of 3h of sunshine, January has the least sunshine of the year in Shamrock, Wisconsin.

How many hours of sunshine does Shamrock have in January?

In Shamrock, Wisconsin, the average sunshine duration in January is 3h.

When is the lowest UV index in Shamrock?

January, February, 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 Shamrock?

In Shamrock, the average daily maximum UV index in January is 1. A UV Index of 2, and less, symbolizes a minimal hazard to health 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
Shamrock, WI

Average temperature in January - Shamrock, WI
  • Average high temperature in January: 20.7°F

The warmest month (with the highest average high temperature) is July (78.6°F).
The month with the lowest average high temperature is January (20.7°F).

  • Average low temperature in January: 7.3°F

The month with the highest average low temperature is July (60.1°F).
The coldest month (with the lowest average low temperature) is January (7.3°F).

Average pressure in January
Shamrock, WI

Average pressure in January - Shamrock, 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 (29.89"Hg).

Average wind speed in January
Shamrock, WI

Average wind speed in January - Shamrock, WI
  • Average wind speed in January: 8.8mph

The windiest month (with the highest average wind speed) is April (9.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.5mph).

Average humidity in January
Shamrock, WI

Average humidity in January - Shamrock, WI
  • Average humidity in January: 91%

The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is April (77%).

Average rainfall in January
Shamrock, WI

Average rainfall in January - Shamrock, WI
  • Average rainfall in January: 0.51"

The wettest month (with the highest rainfall) is June (2.91").
The driest month (with the least rainfall) is January (0.51").

Average rainfall days in January
Shamrock, WI

Average rainfall days in January - Shamrock, WI
  • Average rainfall days in January: 3.7 days

The month with the highest number of rainy days is June (17.1 days).
The month with the least rainy days is February (2.8 days).

Average snowfall in January
Shamrock, WI

Average snowfall in January - Shamrock, WI
  • Average snowfall in January: 2.8"

The month with the highest snowfall is February (2.99").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in January
Shamrock, WI

Average snowfall days in January - Shamrock, 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).

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

Average daylight in January / Average sunshine in January - Shamrock, WI
  • Average daylight in January: 9h and 2min

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in January: 3h and 0min

The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).

Average sunshine days in January
Shamrock, WI

Average sunshine days in January - Shamrock, WI
  • Average sunshine days in January: 15.7 days

The month with the most sunshine days is October (18.4 days).
The month with the least sunshine days is June (9.8 days).

Average UV index in January
Shamrock, WI

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

Average cloud cover in January
Shamrock, WI

Average cloud cover in January - Shamrock, WI
  • Average cloud cover in January: 69

The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 33).

Average visibility in January
Shamrock, WI

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

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

Shamrock, Wisconsin, USA

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