January weather forecast
Janesville, MN

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Weather in January

January, like December, is a freezing cold winter month in Janesville, Minnesota, with temperature in the range of an average low of 7.7°F (-13.5°C) and an average high of 21.2°F (-6°C).

Temperature

January is Janesville's coldest month, registering average high temperatures of 21.2°F (-6°C) and lows of 7.7°F (-13.5°C).

Humidity

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

Rainfall

The month with the least rainfall in Janesville, Minnesota, is January, when the rain falls for 2.8 days and typically collects 0.75" (19mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall in Janesville. In Janesville, during January, snow falls for 13.5 days and regularly aggregates up to 3.94" (100mm) of snow. In Janesville, during the entire year, snow falls for 56.3 days and aggregates up to 24.29" (617mm) of snow.

Daylight

The average length of the day in January in Janesville, Minnesota, is 9h and 20min.
On the first day of January, sunrise is at 7:49 am and sunset at 4:46 pm. On the last day of the month, sunrise is at 7:33 am and sunset at 5:22 pm CST.

Sunshine

With an average of 3.2h of sunshine, January has the least sunshine of the year.

UV index

January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Janesville. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: A maximum high daily UV index of 1 during January translates into the following directions:
Long-term sun exposure is typically not a concern for most. However, those with sensitive skin, infants, and children must always have protection. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
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Frequently asked questions

What month is the coldest in Janesville?

January is the coldest month in Janesville, with an average high-temperature of 21.2°F (-6°C) and an average low-temperature of 7.7°F (-13.5°C).

How cold is it in Janesville in January?

In January, the average high-temperature and low-temperature are 21.2°F (-6°C) and 7.7°F (-13.5°C) respectively.

What is the most humid month in Janesville?

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

What is the average humidity in January in Janesville?

In January, the average relative humidity is 91%.

What is the driest month in Janesville?

January is the month with the least rainfall in Janesville. Rain falls for 2.8 days and accumulates 0.75" (19mm) of precipitation.

How much does it rain in Janesville in January?

In Janesville, during January, the rain falls for 2.8 days and regularly aggregates up to 0.75" (19mm) of precipitation.

How much does it snow in Janesville in January?

In Janesville, in January, snow falls for 13.5 days, with typically accumulated 3.94" (100mm) of snow.

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

In Janesville, the average day length in January is 9h and 20min.

When are sunrise and sunset in January in Janesville?

On the first day of January in Janesville, Minnesota, sunrise is at 7:49 am and sunset at 4:46 pm. On the last day of the month, sunrise is at 7:33 am and sunset at 5:22 pm CST.

What is the month with the least sunshine in Janesville?

January has the least sunshine of the year in Janesville, with an average of 3.2h of sunshine.

How long on average sun shines in January in Janesville?

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

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

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

What is the UV index reading in January in Janesville?

The average daily maximum UV index in January in Janesville, Minnesota, is 1. A UV Index value of 2, and less, symbolizes a low health threat from unprotected exposure to UV radiation.
Today
Tomorrow
Long-term
YearJanuaryFMAMJJASOND
Dec
January
Feb
Average high temperature
26.2°F -3.2°C
21.2°F -6°C
25.2°F -3.8°C
Average low temperature
15.4°F -9.2°C
7.7°F -13.5°C
11.1°F -11.6°C
Average pressure
30.11" 765mmHg
30.14" 766mmHg
30.14" 766mmHg
Average wind speed
8.8mph 14.2km/h
9.3mph 15km/h
9.4mph 15.1km/h
Average max. wind speed
9.5mph 15.3km/h
9.9mph 15.9km/h
10.1mph 16.3km/h
Average wind speed gusts
14.3mph 23km/h
14.8mph 23.8km/h
14.9mph 24km/h
Average humidity
88%
91%
88%
Average rainfall
1.42" 36mm
0.75" 19mm
1.02" 26mm
Average rainfall days
4.6
2.8
1.7
Average snowfall
4.8" 122mm
3.94" 100mm
6.26" 159mm
Average snowfall days
12.8
13.5
11.9
Average daylight
8h 5min
9h 2min
10h 3min
Average sunshine
3h 5min
3h 1min
3h 4min
Average sunshine days
15.8
16.8
15.1
Average UV index
1
1
1
Average cloud cover
62%
66%
62%
Average visibility
5mi 8km
4mi 6.4km
5mi 8km

Average temperature in January
Janesville, MN

Average temperature in January - Janesville, MN
  • Average high temperature in January: 21.2°F

The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (21.2°F).

  • Average low temperature in January: 7.7°F

The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (7.7°F).

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Average pressure in January
Janesville, MN

Average pressure in January - Janesville, MN
  • Average pressure in January: 30.14"Hg

The months with the highest atmospheric pressure are January and February (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

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Average wind speed in January
Janesville, MN

Average wind speed in January - Janesville, MN
  • Average wind speed in January: 9.3mph

The windiest month (with the highest average wind speed) is April (10mph).
The calmest month (with the lowest average wind speed) is July (7.2mph).

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Average humidity in January
Janesville, MN

Average humidity in January - Janesville, MN
  • Average humidity in January: 91%

The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is October (70%).

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Average rainfall in January
Janesville, MN

Average rainfall in January - Janesville, MN
  • Average rainfall in January: 0.75"

The wettest month (with the highest rainfall) is June (3.9").
The driest month (with the least rainfall) is January (0.75").

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Average rainfall days in January
Janesville, MN

Average rainfall days in January - Janesville, MN
  • Average rainfall days in January: 2.8 days

The month with the highest number of rainy days is June (17.5 days).
The month with the least rainy days is February (1.7 days).

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Average snowfall in January
Janesville, MN

Average snowfall in January - Janesville, MN
  • Average snowfall in January: 3.94"

The month with the highest snowfall is February (6.26").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in January
Janesville, MN

Average snowfall days in January - Janesville, MN
  • Average snowfall days in January: 13.5 days

The month with the highest number of snowfall days is January (13.5 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
Janesville, MN

Average daylight in January / Average sunshine in January - Janesville, MN
  • 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: 8h and 54min).

  • Average sunshine in January: 3h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).

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Average sunshine days in January
Janesville, MN

Average sunshine days in January - Janesville, MN
  • Average sunshine days in January: 16.8 days

The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is June (10.9 days).

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Average UV index in January
Janesville, MN

Average UV index in January - Janesville, MN
  • Average UV index in January: 1

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).

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Average cloud cover in January
Janesville, MN

Average cloud cover in January - Janesville, MN
  • 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 31).

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Average visibility in January
Janesville, MN

Average visibility in January - Janesville, MN
  • Average visibility in January: 4mi

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

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Janesville, Minnesota, USA

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