January weather forecast
Muskego, WI

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Weather in January

Muskego, Wisconsin, sees a good share of the winter chill in January with the average temperature fluctuating between 16°F (-8.9°C) and 26.1°F (-3.3°C). This time of the year exhibits all the hallmarks of a typical winter season; grey skies, patchy fog, and the occasional snowfall. The skies remain predominantly overcast, keeping the sunshine to a mere few hours. The air pressure is high, contributing to the brisk winter conditions. The end month witnesses a slight upward trend, transitioning into a slightly more temperate month.

Temperature

In Muskego, the month of January registers the lowest temperatures, averaging 26.1°F (-3.3°C) at the peak and 16°F (-8.9°C) at the lowest.

Humidity

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

Rainfall

In Muskego, during January, the rain falls for 3.7 days and regularly aggregates up to 0.94" (24mm) of precipitation. In Muskego, during the entire year, the rain falls for 129 days and collects up to 20.35" (517mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. January is the month with the most snowfall. Snow falls for 13 days and accumulates 3.23" (82mm) of snow.

Daylight

In Muskego, the average length of the day in January is 9h and 27min.
On the first day of the month, sunrise is at 7:23 am and sunset at 4:28 pm. On the last day of January, sunrise is at 7:08 am and sunset at 5:03 pm CST.

Sunshine

The month with the least sunshine is January, with an average of 3.6h of sunshine.

UV index

The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: A maximum high UV index of 1 in January translates into the following recommendations:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
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Frequently asked questions

What time of the year is the coldest in Muskego?

In Muskego, January is known for its average lowest temperatures, reaching a high of 26.1°F (-3.3°C) and a low of 16°F (-8.9°C).

How cold is it in Muskego in January?

In January, in Muskego, the average high-temperature is 26.1°F (-3.3°C), and the average low-temperature is 16°F (-8.9°C).

What is the most humid month in Muskego?

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

What is the average humidity in January in Muskego?

The average relative humidity in January in Muskego, Wisconsin, is 85%.

How much does it rain in Muskego in January?

In Muskego, in January, it is raining for 3.7 days, with typically 0.94" (24mm) of accumulated precipitation.

What is the snowiest month in Muskego?

January is the month with the most snowfall in Muskego. Snow falls for 13 days and accumulates 3.23" (82mm) of snow.

How many days does it snow in January in Muskego?

In Muskego, Wisconsin, during January, snow falls for 13 days and regularly aggregates up to 3.23" (82mm) of snow.

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

The average day length in January in Muskego is 9h and 27min.

When are sunrise and sunset in January in Muskego?

On the first day of January, sunrise is at 7:23 am and sunset at 4:28 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 5:03 pm CST.

What is the month with the least sunshine in Muskego?

The month with the least sunshine is January, with an average of 3.6h of sunshine.

How long on average sun shines in January in Muskego?

In January, the average sunshine duration in Muskego, Wisconsin, is 3.6h.

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

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

How high is the UV index in January in Muskego?

In January, the average daily maximum UV index in Muskego, Wisconsin, is 1. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to UV radiation.
Today
Tomorrow
Long-term
YearJanuaryFMAMJJASOND
Dec
January
Feb
Average high temperature
32.4°F 0.2°C
26.1°F -3.3°C
29.5°F -1.4°C
Average low temperature
23.9°F -4.5°C
16°F -8.9°C
18.5°F -7.5°C
Average pressure
30.08" 764mmHg
30.1" 765mmHg
30.09" 764mmHg
Average wind speed
10.4mph 16.7km/h
11.1mph 17.9km/h
10.9mph 17.5km/h
Average max. wind speed
11.1mph 17.9km/h
11.7mph 18.8km/h
11.5mph 18.5km/h
Average wind speed gusts
15.6mph 25.1km/h
16.6mph 26.7km/h
16.6mph 26.7km/h
Average humidity
81%
85%
84%
Average rainfall
0.79" 20mm
0.94" 24mm
0.87" 22mm
Average rainfall days
5.4
3.7
3.2
Average snowfall
1.97" 50mm
3.23" 82mm
2.68" 68mm
Average snowfall days
9.3
13
9.9
Average daylight
9h 1min
9h 3min
10h 4min
Average sunshine
4h 0min
3h 4min
3h 5min
Average sunshine days
17.5
14.8
14
Average UV index
1
1
2
Average cloud cover
60%
63%
60%
Average visibility
6mi 9.7km
6mi 9.7km
6mi 9.7km

Average temperature in January
Muskego, WI

Average temperature in January - Muskego, WI
  • Average high temperature in January: 26.1°F

The warmest month (with the highest average high temperature) is July (78.3°F).
The month with the lowest average high temperature is January (26.1°F).

  • Average low temperature in January: 16°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (16°F).

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Average pressure in January
Muskego, WI

Average pressure in January - Muskego, WI
  • Average pressure in January: 30.1"Hg

The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in January
Muskego, WI

Average wind speed in January - Muskego, WI
  • Average wind speed in January: 11.1mph

The windiest month (with the highest average wind speed) is January (11.1mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).

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Average humidity in January
Muskego, WI

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

The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is October (75%).

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Average rainfall in January
Muskego, WI

Average rainfall in January - Muskego, WI
  • Average rainfall in January: 0.94"

The wettest month (with the highest rainfall) is July (2.6").
The driest month (with the least rainfall) is December (0.79").

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Average rainfall days in January
Muskego, WI

Average rainfall days in January - Muskego, WI
  • Average rainfall days in January: 3.7 days

The month with the highest number of rainy days is July (16.7 days).
The month with the least rainy days is February (3.2 days).

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Average snowfall in January
Muskego, WI

Average snowfall in January - Muskego, WI
  • Average snowfall in January: 3.23"

The month with the highest snowfall is January (3.23").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in January
Muskego, WI

Average snowfall days in January - Muskego, 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).

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

Average daylight in January / Average sunshine in January - Muskego, WI
  • Average daylight in January: 9h and 3min

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 6min).

  • Average sunshine in January: 3h and 4min

The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).

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Average sunshine days in January
Muskego, WI

Average sunshine days in January - Muskego, WI
  • Average sunshine days in January: 14.8 days

The month with the most sunshine days is November (18.2 days).
The month with the least sunshine days is July (11.4 days).

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Average UV index in January
Muskego, WI

Average UV index in January - Muskego, 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
Muskego, WI

Average cloud cover in January - Muskego, WI
  • Average cloud cover in January: 63

The month with the most cloud cover is January (Cloud cover 63).
The months with the least cloud cover are July and August (Cloud cover 29).

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Average visibility in January
Muskego, WI

Average visibility in January - Muskego, WI
  • Average visibility in January: 6mi

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

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Muskego, Wisconsin, USA

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