January weather forecast
Tomah, WI

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Weather in January

January, like December, is another subzero cold winter month in Tomah, Wisconsin, with temperature in the range of an average low of 8.2°F (-13.2°C) and an average high of 21.4°F (-5.9°C).

Temperature

In Tomah, the lowest average temperatures are observed in January, with a high of 21.4°F (-5.9°C) and a low of 8.2°F (-13.2°C).

Humidity

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

Rainfall

The months with the least rainfall are January and February Rain falls for 3.5 days and accumulates 0.67" (17mm) of rain.

Snowfall

Months with snowfall are January through May, October through December. In Tomah, Wisconsin, in January, during 14.6 snowfall days, 3.07" (78mm) of snow is typically accumulated. In Tomah, during the entire year, snow falls for 58.3 days and aggregates up to 16.02" (407mm) of snow.

Daylight

The average length of the day in January in Tomah is 9h and 21min.
On the first day of the month, sunrise is at 7:36 am and sunset at 4:34 pm. On the last day of January, sunrise is at 7:20 am and sunset at 5:10 pm CST.

Sunshine

With an average of 2.8h of sunshine, January has the least sunshine of the year in Tomah, Wisconsin.

UV index

January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Tomah. A UV Index estimate of 2, and below, represents a low health risk from unsafe exposure to UV radiation for the average person.
Note: In January, an average UV index of 1 transforms into the following instructions:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the coldest in Tomah?

Tomah's January weather, marked by an average high temperature of 21.4°F (-5.9°C) and an average low temperature of 8.2°F (-13.2°C), is the coldest in the year.

How cold is it in Tomah in January?

In January, in Tomah, the average high-temperature is 21.4°F (-5.9°C), and the average low-temperature is 8.2°F (-13.2°C).

What is the most humid month in Tomah?

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

What is the average humidity in January in Tomah?

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

What is the driest month in Tomah?

The months with the least rainfall in Tomah are January and February Rain falls for 3.5 days and accumulates 0.67" (17mm) of rain.

How many days does it rain in January in Tomah?

In January, the rain falls for 3.5 days. Throughout January, 0.67" (17mm) of precipitation is accumulated.

How many days does it snow in January in Tomah?

In Tomah, in January, during 14.6 snowfall days, 3.07" (78mm) of snow is typically accumulated.

How many hours of daylight does Tomah have in January?

In January, the average day length in Tomah is 9h and 21min.

When is the sunrise / sunset in January in Tomah?

In January, on the first day of the month, sunrise is at 7:36 am and sunset at 4:34 pm. On the last day of the month, in Tomah, Wisconsin, sunrise is at 7:20 am and sunset at 5:10 pm CST.

What is the month with the least sunshine in Tomah?

With an average of 2.8h of sunshine, January has the least sunshine of the year in Tomah, Wisconsin.

How long on average sun shines in January in Tomah?

In January, the average sunshine duration is 2.8h.

When is the lowest UV index in Tomah?

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 reading in January in Tomah?

In Tomah, the average daily maximum UV index in January is 1. A UV Index value of 2, and less, symbolizes a low health threat 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
Tomah, WI

Average temperature in January - Tomah, WI
  • Average high temperature in January: 21.4°F

The warmest month (with the highest average high temperature) is July (79.5°F).
The month with the lowest average high temperature is January (21.4°F).

  • Average low temperature in January: 8.2°F

The month with the highest average low temperature is July (60.6°F).
The coldest month (with the lowest average low temperature) is January (8.2°F).

Average pressure in January
Tomah, WI

Average pressure in January - Tomah, 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
Tomah, WI

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

The windiest month (with the highest average wind speed) is April (9.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.5mph).

Average humidity in January
Tomah, WI

Average humidity in January - Tomah, 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
Tomah, WI

Average rainfall in January - Tomah, WI
  • Average rainfall in January: 0.67"

The wettest month (with the highest rainfall) is June (2.91").
The driest months (with the least rainfall) are January and February (0.67").

Average rainfall days in January
Tomah, WI

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

The month with the highest number of rainy days is June (15.3 days).
The month with the least rainy days is February (2.1 days).

Average snowfall in January
Tomah, WI

Average snowfall in January - Tomah, WI
  • Average snowfall in January: 3.07"

The month with the highest snowfall is February (3.98").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in January
Tomah, WI

Average snowfall days in January - Tomah, WI
  • Average snowfall days in January: 14.6 days

The month with the highest number of snowfall days is January (14.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in January / Average sunshine in January - Tomah, 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: 2h and 5min

The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).

Average sunshine days in January
Tomah, WI

Average sunshine days in January - Tomah, WI
  • Average sunshine days in January: 16.7 days

The month with the most sunshine days is October (18.1 days).
The month with the least sunshine days is June (11.6 days).

Average UV index in January
Tomah, WI

Average UV index in January - Tomah, 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
Tomah, WI

Average cloud cover in January - Tomah, WI
  • Average cloud cover in January: 70

The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 35).

Average visibility in January
Tomah, WI

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

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

Tomah, Wisconsin, USA

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