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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, like December, is a freezing cold winter month in Rio, Wisconsin, with temperature in the range of an average high of 22.6°F (-5.2°C) and an average low of 10.6°F (-11.9°C). Temperature readings reach their annual highs in January, averaging 22.6°F (-5.2°C) and a minimum average of 10.6°F (-11.9°C). Weather in January »
Weather in February
The last month of the winter, February, is another freezing cold month in Rio, Wisconsin, with an average temperature varying between 13.5°F (-10.3°C) and 26.1°F (-3.3°C). Rio's weather, upon February's arrival, documents an average high-temperature of a still freezing cold 26.1°F (-3.3°C), nearly identical to the prior month. Weather in February »
Weather in March
March, the first month of the spring in Rio, is a cold month, with an average temperature fluctuating between 40.6°F (4.8°C) and 26.1°F (-3.3°C). The transition from February to March brings a clear temperature rise, with average high-temperatures increasing from a freezing cold 26.1°F (-3.3°C) to a cold 40.6°F (4.8°C). Weather in March »
Weather in April
April is a cool spring month in Rio, Wisconsin, with an average temperature varying between 53.2°F (11.8°C) and 36.7°F (2.6°C). April comes with an increase, with the average high-temperature moving from an icy 40.6°F (4.8°C) in March to a fresh 53.2°F (11.8°C). Weather in April »
Weather in May
The last month of the spring, May, is a comfortable month in Rio, Wisconsin, with an average temperature fluctuating between 47.7°F (8.7°C) and 65.8°F (18.8°C). The arrival of May brings a temperature shift, with the average high-temperature escalating from a cool 53.2°F (11.8°C) in April to a refreshing 65.8°F (18.8°C). Weather in May »
Weather in June
The first month of the summer, June, is a moderately hot month in Rio, Wisconsin, with an average temperature fluctuating between 56.7°F (13.7°C) and 74.5°F (23.6°C). Rio observes a slight uplift in the average high-temperature with the onset of June, adjusting from May's comfortable 65.8°F (18.8°C) to a warm 74.5°F (23.6°C). Weather in June »
Weather in July
July, the same as June, is another warm summer month in Rio, Wisconsin, with temperature in the range of an average low of 61.2°F (16.2°C) and an average high of 78.6°F (25.9°C). July, recognised by an average high temperature of 78.6°F (25.9°C) and a low of 61.2°F (16.2°C), is Rio's warmest month. Weather in July »
Weather in August
The last month of the summer, August, is also a moderately hot month in Rio, Wisconsin, with an average temperature varying between 77.4°F (25.2°C) and 59.2°F (15.1°C). The advent of August brings an average high-temperature of a still moderately hot 77.4°F (25.2°C), exhibiting minor difference from the previous month. Weather in August »
Weather in September
September, the first month of the autumn in Rio, is still a pleasant month, with an average temperature fluctuating between 51.3°F (10.7°C) and 71.1°F (21.7°C). In Rio, the average high-temperature in September slightly decreases from a warm 77.4°F (25.2°C) in August to a pleasant 71.1°F (21.7°C). Weather in September »
Weather in October
October, like September, is another refreshing autumn month in Rio, Wisconsin, with temperature in the range of an average high of 56.5°F (13.6°C) and an average low of 41.4°F (5.2°C). October's arrival sees a clear drop in the average high-temperature, decreasing from September's agreeable 71.1°F (21.7°C) to a refreshing 56.5°F (13.6°C). Weather in October »
Weather in November
The last month of the autumn, November, is another cold month in Rio, Wisconsin, with an average temperature ranging between min 29.7°F (-1.3°C) and max 41.9°F (5.5°C). Rio's weather in November is characterized by a distinct drop in the average high-temperature, reducing from a moderate 56.5°F (13.6°C) in October to an icy 41.9°F (5.5°C). Weather in November »
Weather in December
The first month of the winter, December, is also a subzero cold month in Rio, Wisconsin, with temperature in the range of an average low of 19.2°F (-7.1°C) and an average high of 29.1°F (-1.6°C). The start of December involves a temperature drop, moving from a cold 41.9°F (5.5°C) in November to a freezing cold 29.1°F (-1.6°C). Weather in December »
Updated: Jun 9, 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 time of the year is the coldest?
Rio's coldest month, January, registers temperatures that range from a high of 22.6°F (-5.2°C) to a low of 10.6°F (-11.9°C).
What is the most humid month in Rio?
The most humid month is January, with an average relative humidity of 89%.
How many days does it rain?
In Rio, during the entire year, the rain falls for 134.5 days and collects up to 26.97" (685mm) of precipitation.
When does it snow?
January through May, October through December are months with snowfall.
What is the snowiest month?
The month with the most snowfall is January, when snow falls for 14.4 days and typically aggregates up to 5.16" (131mm) of snow.
How much does it snow?
In Rio, during the entire year, snow falls for 54.7 days and aggregates up to 19.06" (484mm) of snow.
What is the month with the least sunshine?
January has the least sunshine of the year, with an average of 3.2h of sunshine.
What is the month with the lowest UV index?
The months with the lowest UV index are January, November and December, with an average maximum UV index of 1.
What is the driest month?
The month with the least rainfall is February, when the rain falls for 4.2 days and typically collects 1.1" (28mm) of precipitation.
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 least humid month?
With an average relative humidity of 76%, April is the least humid month in Rio.
What is the wettest month?
The month with the most rainfall is June, when the rain falls for 17.2 days and typically aggregates up to 3.54" (90mm) of precipitation.
When it does not snow?
June through September are months without snowfall.
When are the longest days?
With an average of 15h and 24min of daylight, June has the longest days of the year.
What time of the year is the hottest?
July is the month when Rio experiences its warmest temperatures, averaging a high of 78.6°F (25.9°C) and a low of 61.2°F (16.2°C).
What month has the most sunshine?
July has the most sunshine of the year, with an average of 9.9h of sunshine.
When is the highest UV index?
July is the month with the highest UV index in Rio, with an average maximum UV index of 6.
What is the month with the shortest days?
With an average of 9h and 0min of daylight, December has the shortest days of the year.
Average temperature
Rio, WI
The warmest month (with the highest average high temperature) is July (78.6°F).
The month with the lowest average high temperature is January (22.6°F).
The month with the highest average low temperature is July (61.2°F).
The coldest month (with the lowest average low temperature) is January (10.6°F).
Average pressure
Rio, WI
- Average pressure in January:
30.11"Hg - Average pressure in February:
30.11"Hg - Average pressure in March:
30.09"Hg - Average pressure in April:
29.96"Hg - Average pressure in May:
29.96"Hg - Average pressure in June:
29.91"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.96"Hg - Average pressure in September:
30.03"Hg - Average pressure in October:
29.99"Hg - Average pressure in November:
30.07"Hg - Average pressure in December:
30.09"Hg
The months with the highest atmospheric pressure are January and February (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed
Rio, WI
- Average wind speed in January:
9.6mph - Average wind speed in February:
9.6mph - Average wind speed in March:
9.4mph - Average wind speed in April:
9.9mph - Average wind speed in May:
8.6mph - Average wind speed in June:
7.6mph
- Average wind speed in July:
6.7mph - Average wind speed in August:
6.6mph - Average wind speed in September:
7.6mph - Average wind speed in October:
8.9mph - Average wind speed in November:
9.4mph - Average wind speed in December:
9.2mph
The windiest month (with the highest average wind speed) is April (9.9mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity
Rio, WI
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is April (76%).
Average rainfall
Rio, WI
- Average rainfall in January:
1.14" - Average rainfall in February:
1.1" - Average rainfall in March:
1.69" - Average rainfall in April:
2.91" - Average rainfall in May:
3.39" - Average rainfall in June:
3.54"
The wettest month (with the highest rainfall) is June (3.54").
The driest month (with the least rainfall) is February (1.1").
Average rainfall days
Rio, WI
- Average rainfall days in January:
4.5 days - Average rainfall days in February:
4.2 days - Average rainfall days in March:
10.3 days - Average rainfall days in April:
14.5 days - Average rainfall days in May:
16.1 days - Average rainfall days in June:
17.2 days
- Average rainfall days in July:
15.3 days - Average rainfall days in August:
12.8 days - Average rainfall days in September:
12.1 days - Average rainfall days in October:
12.5 days - Average rainfall days in November:
8.9 days - Average rainfall days in December:
6.1 days
The month with the highest number of rainy days is June (17.2 days).
The month with the least rainy days is February (4.2 days).
Average snowfall
Rio, WI
- Average snowfall in January:
5.16" - Average snowfall in February:
4.53" - Average snowfall in March:
1.85" - Average snowfall in April:
2.2" - Average snowfall in May:
0.04" - Average snowfall in June:
0"
The month with the highest snowfall is January (5.16").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Rio, WI
- Average snowfall days in January:
14.4 days - Average snowfall days in February:
11 days - Average snowfall days in March:
7 days - Average snowfall days in April:
3.3 days - Average snowfall days in May:
0.3 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 days - Average snowfall days in November:
6.2 days - Average snowfall days in December:
11.5 days
The month with the highest number of snowfall days is January (14.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Rio, WI
- 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 4min - Average daylight in June:
15h and 2min
- Average daylight in July:
15h and 0min - Average daylight in August:
13h and 5min - 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:
9h and 0min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in January:
3h and 1min - Average sunshine in February:
3h and 3min - Average sunshine in March:
5h and 4min - Average sunshine in April:
7h and 1min - Average sunshine in May:
8h and 3min - Average sunshine in June:
9h and 1min
- Average sunshine in July:
9h and 5min - Average sunshine in August:
9h and 4min - Average sunshine in September:
8h and 4min - Average sunshine in October:
5h and 1min - Average sunshine in November:
4h and 5min - Average sunshine in December:
3h and 4min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).
Average sunshine days
Rio, WI
- Average sunshine days in January:
14.3 days - Average sunshine days in February:
13.4 days - Average sunshine days in March:
15.3 days - Average sunshine days in April:
12 days - Average sunshine days in May:
12.8 days - Average sunshine days in June:
10.8 days
- Average sunshine days in July:
13 days - Average sunshine days in August:
15.9 days - Average sunshine days in September:
16.5 days - Average sunshine days in October:
16.3 days - Average sunshine days in November:
16.1 days - Average sunshine days in December:
16.2 days
The month with the most sunshine days is September (16.5 days).
The month with the least sunshine days is June (10.8 days).
Average UV index
Rio, WI
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover
Rio, WI
The month with the most cloud cover is January (Cloud cover 66).
The months with the least cloud cover are July and August (Cloud cover 34).
Average visibility
Rio, WI
The months with the highest visibility are March, April, May, June, October and November (6mi).
The months with the lowest visibility are January, February, July, August, September and December (5mi).
Rio, Wisconsin, USA
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