January weather forecast
Seneca, WI

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Weather in January

January, like December, is a freezing cold winter month in Seneca, Wisconsin, with an average temperature fluctuating between 9.9°F (-12.3°C) and 23.4°F (-4.8°C).

Temperature

January, with an average high of 23.4°F (-4.8°C) and a low of 9.9°F (-12.3°C), signifies the coldest month of the year.

Humidity

The most humid month is January, with an average relative humidity of 89%.

Rainfall

The month with the least rainfall is January, when the rain falls for 4.8 days and typically collects 1.14" (29mm) of precipitation.

Snowfall

Months with snowfall are January through April, October through December. In Seneca, Wisconsin, in January, during 15.7 snowfall days, 5.12" (130mm) of snow is typically accumulated. In Seneca, during the entire year, snow falls for 60.2 days and aggregates up to 22.13" (562mm) of snow.

Daylight

In January, the average length of the day in Seneca is 9h and 25min.
On the first day of January, sunrise is at 7:35 am and sunset at 4:38 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 5:13 pm CST.

Sunshine

January has the least sunshine of the year, with an average of 3.4h of sunshine.

UV index

January, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: A daily maximum UV index of 1 in January translates into the following instructions:
In contrast to children, who must always be shielded from the sun, most people can tolerate up to an hour of sun exposure without any burns. Around midday, solar radiation is most harmful; hence, exposure should be limited. Stay sun-safe with clothing that is both closely woven and worn loosely. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Updated: Jun 24, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest month?

The coldest period is January, when temperatures fluctuate between an average high of 23.4°F (-4.8°C) and a low of 9.9°F (-12.3°C).

How cold is it in January?

The high-temperature, in January, in Seneca, records 23.4°F (-4.8°C), while the low-temperature is 9.9°F (-12.3°C).

What is the most humid month?

With an average relative humidity of 89%, January is the most humid month.

What is the average humidity in January?

The average relative humidity in January is 89%.

What is the driest month?

The month with the least rainfall is January, when the rain falls for 4.8 days and typically collects 1.14" (29mm) of precipitation.

How much does it rain in January?

In Seneca, in January, during 4.8 rainfall days, 1.14" (29mm) of precipitation is typically accumulated.

How many days does it snow in January?

In Seneca, in January, during 15.7 snowfall days, 5.12" (130mm) of snow is typically accumulated.

What is the average length of the day in January?

In Seneca, the average day length in January is 9h and 25min.

What time are sunrise and sunset in January in Seneca?

In January, on the first day of the month, sunrise is at 7:35 am and sunset at 4:38 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 5:13 pm CST.

What is the month with the least sunshine?

The month with the least sunshine is January, with an average of 3.4h of sunshine.

How many hours of sunshine does Seneca have in January?

In January, the average sunshine duration in Seneca is 3.4h.

When is the lowest UV index?

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

What is the UV index reading in January?

The average daily maximum UV index in January is 1. A UV Index 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
Seneca, WI

Average temperature in January - Seneca, WI
  • Average high temperature in January: 23.4°F

The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (23.4°F).

  • Average low temperature in January: 9.9°F

The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (9.9°F).

Average pressure in January
Seneca, WI

Average pressure in January - Seneca, 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
Seneca, WI

Average wind speed in January - Seneca, WI
  • Average wind speed in January: 9.1mph

The windiest month (with the highest average wind speed) is April (9.4mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).

Average humidity in January
Seneca, WI

Average humidity in January - Seneca, WI
  • Average humidity in January: 89%

The month with the highest relative humidity is January (89%).
The months with the lowest relative humidity are April and October (77%).

Average rainfall in January
Seneca, WI

Average rainfall in January - Seneca, WI
  • Average rainfall in January: 1.14"

The wettest month (with the highest rainfall) is June (4.17").
The driest month (with the least rainfall) is January (1.14").

Average rainfall days in January
Seneca, WI

Average rainfall days in January - Seneca, WI
  • Average rainfall days in January: 4.8 days

The month with the highest number of rainy days is May (19.2 days).
The month with the least rainy days is February (4.3 days).

Average snowfall in January
Seneca, WI

Average snowfall in January - Seneca, WI
  • Average snowfall in January: 5.12"

The month with the highest snowfall is February (5.98").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in January
Seneca, WI

Average snowfall days in January - Seneca, WI
  • Average snowfall days in January: 15.7 days

The month with the highest number of snowfall days is January (15.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in January / Average sunshine in January - Seneca, 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 0min).

  • Average sunshine in January: 3h and 2min

The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).

Average sunshine days in January
Seneca, WI

Average sunshine days in January - Seneca, WI
  • Average sunshine days in January: 12.8 days

The month with the most sunshine days is November (16.7 days).
The month with the least sunshine days is June (9.2 days).

Average UV index in January
Seneca, WI

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

Average cloud cover in January
Seneca, WI

Average cloud cover in January - Seneca, WI
  • Average cloud cover in January: 66

The month with the most cloud cover is January (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 32).

Average visibility in January
Seneca, WI

Average visibility in January - Seneca, 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).

Seneca, Wisconsin, USA

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