Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average snowfall in January
- Average snowfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
January is the coldest month, with an average high-temperature of 21.2°F (-6°C) and an average low-temperature of 7.7°F (-13.5°C).Humidity
January is the most humid month, with an average relative humidity of 91%.Rainfall
January is the month with the least rainfall. Rain falls for 2.8 days and accumulates 0.75" (19mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Janesville, in January, snow falls for 13.5 days, with typically accumulated 3.94" (100mm) of snow. Throughout the year, there are 56.3 snowfall days, and 24.29" (617mm) of snow is accumulated.Daylight
In Janesville, the average length of the day in January is 9h and 20min.On the first day of the month, sunrise is at 7:49 am and sunset at 4:46 pm. On the last day of January, sunrise is at 7:33 am and sunset at 5:22 pm CST.
Sunshine
The month with the least sunshine is January, with an average of 3.2h of sunshine.UV index
January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum UV index, 1 during January, leads to the following recommendations:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest?
How cold is January in Janesville?
What is the most humid month?
What is the average humidity in January?
What is the driest month?
How much does it rain in Janesville in January?
How many days does it snow in January?
What is the average length of the day in January?
When are sunrise and sunset in January?
What is the month with the least sunshine in Janesville?
How many hours of sunshine does Janesville have in January?
When is the lowest UV index in Janesville?
How high is the UV index in January?
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).
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).
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).
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%).
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").
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).
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").
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).
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).
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).
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).
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).
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).
Janesville, Minnesota, USA
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