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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, the same as December, in Janesville, Minnesota, is a freezing cold winter month, with an average temperature ranging between min 7.7°F (-13.5°C) and max 21.2°F (-6°C). 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). Weather in January »
Weather in February
February, the last month of the winter in Janesville, is also a subzero cold month, with temperature in the range of an average high of 25.2°F (-3.8°C) and an average low of 11.1°F (-11.6°C). The arrival of February denotes a barely perceptible change in the average high-temperatures to a still subzero cold 25.2°F (-3.8°C) from January's 21.2°F (-6°C). Weather in February »
Weather in March
March, the first month of the spring in Janesville, is a wintry month, with an average temperature varying between 39.9°F (4.4°C) and 26.2°F (-3.2°C). March brings a significant increase in the average high-temperature, moving up from a subzero cold 25.2°F (-3.8°C) in February to a cold 39.9°F (4.4°C). Weather in March »
Weather in April
April in Janesville, Minnesota, is a cool spring month, with an average temperature ranging between max 54.3°F (12.4°C) and min 38.5°F (3.6°C). April's arrival is marked by a notable elevation in high-temperatures, rising from a cold 39.9°F (4.4°C) in March to a cool 54.3°F (12.4°C). Weather in April »
Weather in May
May, the last month of the spring in Janesville, is a refreshing month, with an average temperature varying between 66.9°F (19.4°C) and 50.4°F (10.2°C). May brings a temperature change, with average high-temperatures moving from April's cool 54.3°F (12.4°C) to a comfortable 66.9°F (19.4°C). Weather in May »
Weather in June
The first month of the summer, June, is a moderately hot month in Janesville, Minnesota, with an average temperature varying between 76.5°F (24.7°C) and 60.1°F (15.6°C). In Janesville, the onset of June comes with an increased average high-temperature, moving from May's refreshing 66.9°F (19.4°C) to a moderately hot 76.5°F (24.7°C). Weather in June »
Weather in July
July, like June, in Janesville, Minnesota, is another warm summer month, with an average temperature varying between 80.1°F (26.7°C) and 62.4°F (16.9°C). July, with an average high of 80.1°F (26.7°C) and a low of 62.4°F (16.9°C), signifies the warmest month of the year. Weather in July »
Weather in August
August, the last month of the summer in Janesville, is another warm month, with an average temperature fluctuating between 59.5°F (15.3°C) and 77.7°F (25.4°C). With the onset of August, the average high-temperature registers at a still moderately hot 77.7°F (25.4°C), subtly different from July's 80.1°F (26.7°C). Weather in August »
Weather in September
The first month of the autumn, September, is still a pleasant month in Janesville, Minnesota, with an average temperature varying between 52.9°F (11.6°C) and 72.3°F (22.4°C). The start of September involves a subtle temperature drop, shifting from a warm 77.7°F (25.4°C) in August to an agreeable 72.3°F (22.4°C). Weather in September »
Weather in October
October, the same as September, in Janesville, Minnesota, is another mild autumn month, with an average temperature fluctuating between 56.3°F (13.5°C) and 41.7°F (5.4°C). A noticeable downshift in temperatures is seen as September gives way to October, with average highs moving from an agreeable 72.3°F (22.4°C) to a moderate 56.3°F (13.5°C). Weather in October »
Weather in November
November, the last month of the autumn in Janesville, is also an icy month, with an average temperature ranging between min 29.3°F (-1.5°C) and max 41.4°F (5.2°C). As November arrives, Janesville's weather displays a notable decrease in high-temperatures, falling from October's mild 56.3°F (13.5°C) to a wintry 41.4°F (5.2°C). Weather in November »
Weather in December
December, the first month of the winter in Janesville, is still a freezing cold month, with an average temperature fluctuating between 15.4°F (-9.2°C) and 26.2°F (-3.2°C). December's onset is marked by a clear temperature decrease, falling from a cold 41.4°F (5.2°C) in November to a freezing cold 26.2°F (-3.2°C). Weather in December »
Updated: Aug 7, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest?
The month of January, characterized by an average high of 21.2°F (-6°C) and a low of 7.7°F (-13.5°C), is recognized as the coldest.
What is the most humid month?
January is the most humid month, with an average relative humidity of 91%.
What is the driest month in Janesville?
January is the month with the least rainfall. Rain falls for 2.8 days and accumulates 0.75" (19mm) of precipitation.
How much does it rain?
Throughout the year, there are 124.8 rainfall days, and 24.25" (616mm) of precipitation is accumulated.
When does it snow?
January through May, October through December are months with snowfall.
How many days does it snow in Janesville?
In Janesville, during the entire year, snow falls for 56.3 days and aggregates up to 24.29" (617mm) of snow.
What is the month with the least sunshine?
The month with the least sunshine is January, with an average of 3.2h of sunshine.
When is the lowest UV index?
January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index.
What is the snowiest month?
February is the month with the most snowfall. Snow falls for 11.9 days and accumulates 6.26" (159mm) of snow.
When is Daylight Saving Time (DST)?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from CDT to CST.
What is the wettest month?
June is the month with the most rainfall. Rain falls for 17.5 days and accumulates 3.9" (99mm) of precipitation.
When it does not snow?
In Janesville, snow does not fall in June through September.
When are the longest days?
The month with the longest days is June, with an average of 15h and 24min of daylight.
What is the month with the highest UV index?
The months with the highest UV index in Janesville are June and July, with an average maximum UV index of 6.
What is the hottest time of year?
The temperatures reach their highest averages in July, with highs of 80.1°F (26.7°C) and lows of 62.4°F (16.9°C).
What month has the most sunshine?
With an average of 10h of sunshine, July has the most sunshine of the year.
What is the least humid month?
October is the least humid month, with an average relative humidity of 70%.
What is the month with the shortest days?
The month with the shortest days is December, with an average of 8h and 54min of daylight.
Average temperature
Janesville, MN
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).
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
Janesville, MN
- Average pressure in January:
30.14"Hg - Average pressure in February:
30.14"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.94"Hg - Average pressure in May:
29.93"Hg - Average pressure in June:
29.88"Hg
- Average pressure in July:
29.95"Hg - Average pressure in August:
29.95"Hg - Average pressure in September:
30"Hg - Average pressure in October:
29.98"Hg - Average pressure in November:
30.06"Hg - Average pressure in December:
30.11"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
Janesville, MN
- Average wind speed in January:
9.3mph - Average wind speed in February:
9.4mph - Average wind speed in March:
9.5mph - Average wind speed in April:
10mph - Average wind speed in May:
8.8mph - Average wind speed in June:
8.1mph
- Average wind speed in July:
7.2mph - Average wind speed in August:
7.3mph - Average wind speed in September:
8.4mph - Average wind speed in October:
9.5mph - Average wind speed in November:
9.6mph - Average wind speed in December:
8.8mph
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
Janesville, MN
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is October (70%).
Average rainfall
Janesville, MN
- Average rainfall in January:
0.75" - Average rainfall in February:
1.02" - Average rainfall in March:
1.42" - Average rainfall in April:
2.52" - Average rainfall in May:
3.15" - Average rainfall in June:
3.9"
- Average rainfall in July:
2.87" - Average rainfall in August:
2.36" - Average rainfall in September:
2.05" - Average rainfall in October:
1.73" - Average rainfall in November:
1.06" - Average rainfall in December:
1.42"
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
Janesville, MN
- Average rainfall days in January:
2.8 days - Average rainfall days in February:
1.7 days - Average rainfall days in March:
9.3 days - Average rainfall days in April:
14.4 days - Average rainfall days in May:
16 days - Average rainfall days in June:
17.5 days
- Average rainfall days in July:
16.6 days - Average rainfall days in August:
15 days - Average rainfall days in September:
11.6 days - Average rainfall days in October:
9.8 days - Average rainfall days in November:
5.5 days - Average rainfall days in December:
4.6 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
Janesville, MN
- Average snowfall in January:
3.94" - Average snowfall in February:
6.26" - Average snowfall in March:
3.5" - Average snowfall in April:
2.36" - Average snowfall in May:
0.35" - Average snowfall in June:
0"
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
Janesville, MN
- Average snowfall days in January:
13.5 days - Average snowfall days in February:
11.9 days - Average snowfall days in March:
7.5 days - Average snowfall days in April:
3.6 days - Average snowfall days in May:
0.5 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
1.1 days - Average snowfall days in November:
5.4 days - Average snowfall days in December:
12.8 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 / Average sunshine
Janesville, MN
- Average daylight in January:
9h and 2min - Average daylight in February:
10h and 3min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 3min - Average daylight in May:
14h and 5min - Average daylight in June:
15h and 2min
- Average daylight in July:
15h and 1min - Average daylight in August:
14h and 0min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 4min - Average daylight in December:
8h and 5min
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 - Average sunshine in February:
3h and 4min - Average sunshine in March:
5h and 2min - Average sunshine in April:
7h and 4min - Average sunshine in May:
8h and 4min - Average sunshine in June:
9h and 3min
- Average sunshine in July:
10h and 0min - Average sunshine in August:
9h and 4min - Average sunshine in September:
8h and 5min - Average sunshine in October:
5h and 2min - Average sunshine in November:
5h and 0min - Average sunshine in December:
3h and 5min
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
Janesville, MN
- Average sunshine days in January:
16.8 days - Average sunshine days in February:
15.1 days - Average sunshine days in March:
16.9 days - Average sunshine days in April:
12.8 days - Average sunshine days in May:
13.1 days - Average sunshine days in June:
10.9 days
- Average sunshine days in July:
11.4 days - Average sunshine days in August:
13.4 days - Average sunshine days in September:
16.2 days - Average sunshine days in October:
18.5 days - Average sunshine days in November:
19.3 days - Average sunshine days in December:
15.8 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
Janesville, MN
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
Janesville, MN
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
Janesville, MN
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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