January weather forecast
Merrillan, WI

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Weather in January

Low temperatures are a characteristic trait in January in Merrillan, Wisconsin, with mercury columns sometimes dipping as low as 7.3°F (-13.7°C). The winter chill results in a high relative humidity, reaching 91%, the highest in the year. Cold days with clear skies and little sunshine are the norm. January also witnesses significant snowfall, making this period ideal for winter sports enthusiasts. This period has shorter daylight hours with a mean of 9.3 hours daily.

Temperature

The coldest month in Merrillan is January, with an average high-temperature of 20.7°F (-6.3°C) and an average low-temperature of 7.3°F (-13.7°C).

Humidity

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

Rainfall

January is the month with the least rainfall. Rain falls for 3.7 days and accumulates 0.51" (13mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In Merrillan, in January, snow falls for 15.4 days, with typically accumulated 2.8" (71mm) of snow. Throughout the year, in Merrillan, there are 62.1 snowfall days, and 13.11" (333mm) of snow is accumulated.

Daylight

In Merrillan, the average length of the day in January is 9h and 18min.
On the first day of January, sunrise is at 7:39 am and sunset at 4:34 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 5:10 pm CST.

Sunshine

The month with the least sunshine is January, 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 value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index of 1 during January translates into the following directions:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Updated: Jun 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the coldest?

January, having an average high-temperature of 20.7°F (-6.3°C) and an average low-temperature of 7.3°F (-13.7°C), is the coldest month in Merrillan, Wisconsin.

How cold is it in January?

The high-temperature, in January, in Merrillan, is 20.7°F (-6.3°C), while the low-temperature averages to 7.3°F (-13.7°C).

What is the most humid month?

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

What is the average humidity in January?

In January, the average relative humidity is 91%.

What is the driest month?

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

How many days does it rain in January?

In Merrillan, in January, it is raining for 3.7 days, with typically 0.51" (13mm) of accumulated precipitation.

How much does it snow in January?

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

How many hours of daylight does Merrillan have in January?

The average day length in January is 9h and 18min.

What time are sunrise and sunset in January?

In January, on the first day of the month, sunrise is at 7:39 am and sunset at 4:34 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 5:10 pm CST.

What is the month with the least sunshine?

The month with the least sunshine is January, with an average of 3h of sunshine.

How many hours of sunshine does Merrillan have in January?

The average sunshine duration in January is 3h.

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

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

What is the UV index intensity in January?

In January, the average daily maximum UV index is 1. A UV Index reading of 2, and below, represents a minimal hazard to health from exposure to the Sun's 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
Merrillan, WI

Average temperature in January - Merrillan, 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
Merrillan, WI

Average pressure in January - Merrillan, 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
Merrillan, WI

Average wind speed in January - Merrillan, 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
Merrillan, WI

Average humidity in January - Merrillan, 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
Merrillan, WI

Average rainfall in January - Merrillan, 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
Merrillan, WI

Average rainfall days in January - Merrillan, 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
Merrillan, WI

Average snowfall in January - Merrillan, 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
Merrillan, WI

Average snowfall days in January - Merrillan, 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
Merrillan, WI

Average daylight in January / Average sunshine in January - Merrillan, 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
Merrillan, WI

Average sunshine days in January - Merrillan, 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
Merrillan, WI

Average UV index in January - Merrillan, 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
Merrillan, WI

Average cloud cover in January - Merrillan, 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
Merrillan, WI

Average visibility in January - Merrillan, 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).

Merrillan, Wisconsin, USA

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