January weather forecast
Merton, WI

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Weather in January

January, the same as December, in Merton, Wisconsin, is a freezing cold winter month, with an average temperature varying between 25.2°F (-3.8°C) and 13.6°F (-10.2°C).

Temperature

In Merton, January is the coldest month, with temperatures averaging a high of 25.2°F (-3.8°C) and a low of 13.6°F (-10.2°C).

Humidity

January is the most humid month, with an average relative humidity of 87%.

Rainfall

In January, the rain falls for 5.4 days. Throughout January, 1.54" (39mm) of precipitation is accumulated. Throughout the year, in Merton, there are 149.2 rainfall days, and 28.54" (725mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in Merton. January is the month with the most snowfall. Snow falls for 15.4 days and accumulates 5.43" (138mm) of snow.

Daylight

In January, the average length of the day is 9h and 26min.
On the first day of the month, sunrise is at 7:24 am and sunset at 4:28 pm. On the last day of January, sunrise is at 7:09 am and sunset at 5:03 pm CST.

Sunshine

The month with the least sunshine is January, with an average of 3.5h of sunshine.

UV index

January and December, with an average maximum UV index of 1, are months with the lowest UV index in Merton. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: The UV index of 1 during January translates into the following guidance:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Enhance your sun protection with tightly woven, yet airy clothing. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
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Frequently asked questions

What month is the coldest in Merton?

Merton, Wisconsin, notes the coldest temperatures in January, with a average high of 25.2°F (-3.8°C) and a low of 13.6°F (-10.2°C).

How cold is it in Merton in January?

The average high-temperature, in January, in Merton, is 25.2°F (-3.8°C), while the average low-temperature is 13.6°F (-10.2°C).

What is the most humid month in Merton?

The most humid month in Merton is January, with an average relative humidity of 87%.

What is the average humidity in January in Merton?

In January, the average relative humidity is 87%.

How many days does it rain in January in Merton?

In January, in Merton, the rain falls for 5.4 days. Throughout January, 1.54" (39mm) of precipitation is accumulated.

What is the snowiest month in Merton?

The month with the most snowfall in Merton, Wisconsin, is January, when snow falls for 15.4 days and typically aggregates up to 5.43" (138mm) of snow.

How many days does it snow in January in Merton?

In January, in Merton, it is snowing for 15.4 days. Throughout January, 5.43" (138mm) of snow is accumulated.

How many hours of daylight does Merton have in January?

The average day length in January is 9h and 26min.

What time are sunrise and sunset in January in Merton?

In January, on the first day of the month, sunrise is at 7:24 am and sunset at 4:28 pm. On the last day of the month, in Merton, Wisconsin, sunrise is at 7:09 am and sunset at 5:03 pm CST.

What is the month with the least sunshine in Merton?

The month with the least sunshine is January, with an average of 3.5h of sunshine.

How many hours of sunshine does Merton have in January?

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

When is the lowest UV index in Merton?

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

What is the UV index reading in January in Merton?

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

Average temperature in January - Merton, WI
  • Average high temperature in January: 25.2°F

The warmest month (with the highest average high temperature) is July (78.1°F).
The month with the lowest average high temperature is January (25.2°F).

  • Average low temperature in January: 13.6°F

The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (13.6°F).

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Average pressure in January
Merton, WI

Average pressure in January - Merton, 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).

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Average wind speed in January
Merton, WI

Average wind speed in January - Merton, WI
  • Average wind speed in January: 10.5mph

The windiest month (with the highest average wind speed) is January (10.5mph).
The calmest months (with the lowest average wind speed) are July and August (6.7mph).

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Average humidity in January
Merton, WI

Average humidity in January - Merton, WI
  • Average humidity in January: 87%

The month with the highest relative humidity is January (87%).
The months with the lowest relative humidity are April and October (77%).

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Average rainfall in January
Merton, WI

Average rainfall in January - Merton, WI
  • Average rainfall in January: 1.54"

The wettest month (with the highest rainfall) is June (3.43").
The driest month (with the least rainfall) is February (1.46").

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Average rainfall days in January
Merton, WI

Average rainfall days in January - Merton, WI
  • Average rainfall days in January: 5.4 days

The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is February (5.3 days).

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Average snowfall in January
Merton, WI

Average snowfall in January - Merton, WI
  • Average snowfall in January: 5.43"

The month with the highest snowfall is January (5.43").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in January
Merton, WI

Average snowfall days in January - Merton, 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).

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

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

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 month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).

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Average sunshine days in January
Merton, WI

Average sunshine days in January - Merton, WI
  • Average sunshine days in January: 12.1 days

The month with the most sunshine days is November (15.9 days).
The months with the least sunshine days are June and July (10.3 days).

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Average UV index in January
Merton, WI

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

The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January and December (UV index 1).

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Average cloud cover in January
Merton, WI

Average cloud cover in January - Merton, WI
  • Average cloud cover in January: 63

The month with the most cloud cover is January (Cloud cover 63).
The months with the least cloud cover are August and September (Cloud cover 30).

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Average visibility in January
Merton, WI

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

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

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Merton, Wisconsin, USA

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