January weather forecast
Casco, WI

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Weather in January

January, the same as December, in Casco, Wisconsin, is another subzero cold winter month, with temperature in the range of an average high of 25°F (-3.9°C) and an average low of 16.5°F (-8.6°C).

Temperature

Casco reaches its lowest average temperatures in January, measuring 25°F (-3.9°C) at the peak and 16.5°F (-8.6°C) at the lowest.

Humidity

With an average relative humidity of 85%, January is the most humid month.

Rainfall

In Casco, Wisconsin, during January, the rain falls for 4.2 days and regularly aggregates up to 1.42" (36mm) of precipitation. In Casco, during the entire year, the rain falls for 132.6 days and collects up to 25.55" (649mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In January, it is snowing for 14.7 days. Throughout January, 4.13" (105mm) of snow is accumulated. Throughout the year, in Casco, there are 59.4 snowfall days, and 18.94" (481mm) of snow is accumulated.

Daylight

In January, the average length of the day is 9h and 17min.
On the first day of January, sunrise is at 7:27 am and sunset at 4:20 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 4:57 pm CST.

Sunshine

The months with the least sunshine are January and February, with an average of 3.2h of sunshine.

UV index

January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for the average person.
Note: A maximum UV index of 1 in January translates into the following recommendations:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Updated: Jul 24, 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 Casco, the average lowest temperatures are observed in January, with a high of 25°F (-3.9°C) and a low of 16.5°F (-8.6°C).

How cold is it in January?

January temperatures vary between a high-temperature of 25°F (-3.9°C) and a low-temperature of 16.5°F (-8.6°C).

What is the most humid month?

The most humid month is January, with an average relative humidity of 85%.

What is the average humidity in January?

In Casco, Wisconsin, the average relative humidity in January is 85%.

How much does it rain in January?

In January, the rain falls for 4.2 days. Throughout January, 1.42" (36mm) of precipitation is accumulated.

How much does it snow in January?

In Casco, during January, snow falls for 14.7 days and regularly aggregates up to 4.13" (105mm) of snow.

What is the average length of the day in January?

In January, the average day length is 9h and 17min.

What time are sunrise and sunset in January?

On the first day of January, sunrise is at 7:27 am and sunset at 4:20 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 4:57 pm CST.

What are the months with the least sunshine?

The months with the least sunshine are January and February, with an average of 3.2h of sunshine.

How long on average sun shines in January in Casco?

In Casco, Wisconsin, the average sunshine duration in January is 3.2h.

When is the lowest UV index?

January 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 Casco, Wisconsin, the average daily maximum UV index in January is 1. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to 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
Casco, WI

Average temperature in January - Casco, WI
  • Average high temperature in January: 25°F

The warmest month (with the highest average high temperature) is July (76.1°F).
The month with the lowest average high temperature is January (25°F).

  • Average low temperature in January: 16.5°F

The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is January (16.5°F).

Average pressure in January
Casco, WI

Average pressure in January - Casco, WI
  • Average pressure in January: 30.06"Hg

The month with the highest atmospheric pressure is March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in January
Casco, WI

Average wind speed in January - Casco, WI
  • Average wind speed in January: 12.4mph

The windiest month (with the highest average wind speed) is January (12.4mph).
The calmest month (with the lowest average wind speed) is July (8.1mph).

Average humidity in January
Casco, WI

Average humidity in January - Casco, WI
  • Average humidity in January: 85%

The month with the highest relative humidity is January (85%).
The months with the lowest relative humidity are April and May (76%).

Average rainfall in January
Casco, WI

Average rainfall in January - Casco, WI
  • Average rainfall in January: 1.42"

The wettest month (with the highest rainfall) is May (2.91").
The driest month (with the least rainfall) is February (1.38").

Average rainfall days in January
Casco, WI

Average rainfall days in January - Casco, WI
  • Average rainfall days in January: 4.2 days

The month with the highest number of rainy days is May (15.3 days).
The months with the least rainy days are January and February (4.2 days).

Average snowfall in January
Casco, WI

Average snowfall in January - Casco, WI
  • Average snowfall in January: 4.13"

The month with the highest snowfall is February (4.76").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in January
Casco, WI

Average snowfall days in January - Casco, WI
  • Average snowfall days in January: 14.7 days

The month with the highest number of snowfall days is January (14.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in January / Average sunshine in January - Casco, 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 1min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The months with the least sunshine are January and February (Average sunshine: 3h and 12min).

Average sunshine days in January
Casco, WI

Average sunshine days in January - Casco, WI
  • Average sunshine days in January: 11.8 days

The month with the most sunshine days is November (16.3 days).
The month with the least sunshine days is February (11 days).

Average UV index in January
Casco, WI

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

Average cloud cover in January
Casco, WI

Average cloud cover in January - Casco, 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 July (Cloud cover 29).

Average visibility in January
Casco, WI

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

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

Casco, Wisconsin, USA

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