January weather forecast
Ross, WI

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Weather in January

January, the same as December, in Ross, Wisconsin, is another subzero cold winter month, with an average temperature fluctuating between 9.3°F (-12.6°C) and 22.1°F (-5.5°C).

Temperature

With average temperatures fluctuating between a high of 22.1°F (-5.5°C) and a low of 9.3°F (-12.6°C), January stands out as the coldest month.

Humidity

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

Rainfall

January is the month with the least rainfall. Rain falls for 3.5 days and accumulates 1.1" (28mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall in Ross. In Ross, Wisconsin, in January, snow falls for 13 days, with typically accumulated 5.47" (139mm) of snow. In Ross, during the entire year, snow falls for 54.2 days and aggregates up to 24.65" (626mm) of snow.

Daylight

In Ross, the average length of the day in January is 9h and 23min.
On the first day of January, sunrise is at 7:36 am and sunset at 4:36 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 5:12 pm CST.

Sunshine

The month with the least sunshine is January, with an average of 3.1h of sunshine.

UV index

January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Ross. A UV Index of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In January, the maximum UV index of 1 translates into these guidelines:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Boost your sun resistance with garments that are densely woven yet spacious. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What part of the year is the coldest in Ross?

January, on average, is the coldest month in Ross, registering a high temperature of 22.1°F (-5.5°C) and a low of 9.3°F (-12.6°C).

How cold is January in Ross?

The high-temperature, in January, in Ross, records 22.1°F (-5.5°C), while the low-temperature is 9.3°F (-12.6°C).

What is the most humid month in Ross?

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

What is the average humidity in January in Ross?

The average relative humidity in January in Ross is 91%.

What is the driest month in Ross?

January is the month with the least rainfall in Ross. Rain falls for 3.5 days and accumulates 1.1" (28mm) of precipitation.

How many days does it rain in January in Ross?

In January, in Ross, Wisconsin, the rain falls for 3.5 days. Throughout January, 1.1" (28mm) of precipitation is accumulated.

How many days does it snow in January in Ross?

In Ross, in January, snow falls for 13 days, with typically accumulated 5.47" (139mm) of snow.

What is the average length of the day in January in Ross?

In January, the average day length is 9h and 23min.

When is the sunrise / sunset in January in Ross?

On the first day of January in Ross, Wisconsin, sunrise is at 7:36 am and sunset at 4:36 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 5:12 pm CST.

What is the month with the least sunshine in Ross?

January has the least sunshine of the year in Ross, with an average of 3.1h of sunshine.

How long on average sun shines in January in Ross?

In January, the average sunshine duration is 3.1h.

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

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

What is the UV index reading in January in Ross?

In Ross, Wisconsin, the average daily maximum UV index in January is 1. A UV Index reading of 2, and below, represents 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
Ross, WI

Average temperature in January - Ross, WI
  • Average high temperature in January: 22.1°F

The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (22.1°F).

  • Average low temperature in January: 9.3°F

The month with the highest average low temperature is July (61.2°F).
The coldest month (with the lowest average low temperature) is January (9.3°F).

Average pressure in January
Ross, WI

Average pressure in January - Ross, 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 (29.9"Hg).

Average wind speed in January
Ross, WI

Average wind speed in January - Ross, WI
  • Average wind speed in January: 9mph

The windiest month (with the highest average wind speed) is April (9.3mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).

Average humidity in January
Ross, WI

Average humidity in January - Ross, 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
Ross, WI

Average rainfall in January - Ross, WI
  • Average rainfall in January: 1.1"

The wettest month (with the highest rainfall) is June (4.8").
The driest month (with the least rainfall) is January (1.1").

Average rainfall days in January
Ross, WI

Average rainfall days in January - Ross, WI
  • Average rainfall days in January: 3.5 days

The month with the highest number of rainy days is May (18.4 days).
The month with the least rainy days is February (3.1 days).

Average snowfall in January
Ross, WI

Average snowfall in January - Ross, WI
  • Average snowfall in January: 5.47"

The month with the highest snowfall is February (6.38").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in January
Ross, WI

Average snowfall days in January - Ross, WI
  • Average snowfall days in January: 13 days

The month with the highest number of snowfall days is January (13 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in January: 3h and 1min

The months with the most sunshine are July and August (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).

Average sunshine days in January
Ross, WI

Average sunshine days in January - Ross, WI
  • Average sunshine days in January: 16.5 days

The month with the most sunshine days is December (17.4 days).
The month with the least sunshine days is June (9.8 days).

Average UV index in January
Ross, WI

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

Average cloud cover in January
Ross, WI

Average cloud cover in January - Ross, WI
  • Average cloud cover in January: 68

The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 33).

Average visibility in January
Ross, WI

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

The months with the highest visibility are April, May, October and November (6mi).
The month with the lowest visibility is January (4mi).

Ross, Wisconsin, USA

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