January weather forecast
Casco, WI

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Weather in January

January, like December, is another subzero cold winter month in Casco, Wisconsin, with an average temperature ranging between max 25°F (-3.9°C) and min 16.5°F (-8.6°C).

Temperature

January is the month when Casco experiences its coldest temperatures, averaging a high of 25°F (-3.9°C) and a low of 16.5°F (-8.6°C).

Humidity

January is the most humid month in Casco, Wisconsin, with an average relative humidity of 85%.

Rainfall

In Casco, Wisconsin, in January, it is raining for 4.2 days, with typically 1.42" (36mm) of accumulated 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 in Casco are January through May, October through December. In Casco, Wisconsin, during January, snow falls for 14.7 days and regularly aggregates up to 4.13" (105mm) of snow. Throughout the year, in Casco, there are 59.4 snowfall days, and 18.94" (481mm) of snow is accumulated.

Daylight

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

Sunshine

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

UV index

The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for average individuals.
Note: The maximum daily UV index, 1 in January, converts into the following recommendations:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
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Frequently asked questions

What is the coldest time of year in Casco?

Casco, Wisconsin, experiences its average lowest temperatures in January, reaching a peak of 25°F (-3.9°C) and a minimum of 16.5°F (-8.6°C).

How cold is January in Casco?

The high-temperature in Casco, Wisconsin, during January is 25°F (-3.9°C) and the low-temperature is 16.5°F (-8.6°C).

What is the most humid month in Casco?

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

What is the average humidity in January in Casco?

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

How many days does it rain in January in Casco?

In Casco, Wisconsin, in January, during 4.2 rainfall days, 1.42" (36mm) of precipitation is typically accumulated.

How many days does it snow in January in Casco?

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 Casco?

The average day length in January in Casco is 9h and 17min.

When is the sunrise / sunset in January in Casco?

In January, on the first day of the month, 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 in Casco?

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

What is the month with the lowest UV index in Casco?

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

What is the UV index reading in January in Casco?

In January, the average daily maximum UV index in Casco is 1. A UV Index estimate of 2, and below, represents a minimal hazard to health from exposure to Sun's UV rays.
Today
Tomorrow
Long-term
YearJanuaryFMAMJJASOND
Dec
January
Feb
Average high temperature
31.1°F -0.5°C
25°F -3.9°C
27°F -2.8°C
Average low temperature
23°F -5°C
16.5°F -8.6°C
18°F -7.8°C
Average pressure
30.06" 764mmHg
30.06" 764mmHg
30.08" 764mmHg
Average wind speed
12mph 19.3km/h
12.4mph 20km/h
12mph 19.3km/h
Average max. wind speed
12.8mph 20.6km/h
13.2mph 21.2km/h
12.7mph 20.4km/h
Average wind speed gusts
18.2mph 29.3km/h
18.4mph 29.6km/h
18.3mph 29.5km/h
Average humidity
83%
85%
84%
Average rainfall
1.89" 48mm
1.42" 36mm
1.38" 35mm
Average rainfall days
5.6
4.2
4.2
Average snowfall
3.82" 97mm
4.13" 105mm
4.76" 121mm
Average snowfall days
13.1
14.7
13.3
Average daylight
8h 5min
9h 2min
10h 3min
Average sunshine
3h 2min
3h 1min
3h 1min
Average sunshine days
13.3
11.8
11
Average UV index
1
1
2
Average cloud cover
65%
69%
66%
Average visibility
6mi 9.7km
5mi 8km
6mi 9.7km

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).

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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).

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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).

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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%).

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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").

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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).

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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").

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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).

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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).

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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).

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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).

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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).

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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).

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Casco, Wisconsin, USA

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