Climate and monthly weather forecast
Monona, IA

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Weather in January

January, the same as December, in Monona, Iowa, is another subzero cold winter month, with an average temperature varying between 22.8°F (-5.1°C) and 10°F (-12.2°C). In Monona, Iowa, January is the month with the lowest recorded average temperatures, measuring a high of 22.8°F (-5.1°C) and a low of 10°F (-12.2°C). Weather in January »

Weather in February

The last month of the winter, February, is another freezing cold month in Monona, Iowa, with an average temperature fluctuating between 26.4°F (-3.1°C) and 13.5°F (-10.3°C). Monona observes a minor difference in average high-temperatures between January's 22.8°F (-5.1°C) and February's 26.4°F (-3.1°C). Weather in February »

Weather in March

March, the first month of the spring in Monona, is an icy month, with an average temperature ranging between min 27°F (-2.8°C) and max 41.5°F (5.3°C). March's arrival sees a clear escalation in the average high-temperature, rising from February's subzero cold 26.4°F (-3.1°C) to a wintry 41.5°F (5.3°C). Weather in March »

Weather in April

April in Monona, Iowa, is a cool spring month, with an average temperature ranging between max 54.3°F (12.4°C) and min 37.9°F (3.3°C). April's arrival signals a temperature shift, moving from a cold 41.5°F (5.3°C) in March to a fresh 54.3°F (12.4°C). Weather in April »

Weather in May

The last month of the spring, May, is a comfortable month in Monona, Iowa, with an average temperature varying between 48.7°F (9.3°C) and 66°F (18.9°C). May's arrival coincides with a temperature rise, moving from April's fresh 54.3°F (12.4°C) to a refreshing 66°F (18.9°C). Weather in May »

Weather in June

The first month of the summer, June, is a moderately hot month in Monona, Iowa, with an average temperature varying between 58.5°F (14.7°C) and 75.4°F (24.1°C). June's onset is marked by a temperature increase, moving from an enjoyable 66°F (18.9°C) in May to a moderately hot 75.4°F (24.1°C). Weather in June »

Weather in July

July, like June, in Monona, Iowa, is another warm summer month, with an average temperature varying between 62.2°F (16.8°C) and 79.3°F (26.3°C). Monona experiences its highest average temperatures in July, reaching a peak of 79.3°F (26.3°C) and a minimum of 62.2°F (16.8°C). Weather in July »

Weather in August

August, the last month of the summer in Monona, is another warm month, with an average temperature ranging between min 59.5°F (15.3°C) and max 77.7°F (25.4°C). The advent of August reveals an average high-temperature of a still warm 77.7°F (25.4°C), showing minimal difference from the prior month. Weather in August »

Weather in September

The first month of the autumn, September, is still a pleasant month in Monona, Iowa, with an average temperature varying between 71.2°F (21.8°C) and 52.3°F (11.3°C). The average high-temperature slightly decreases in September, shifting from a warm 77.7°F (25.4°C) in August to a pleasant 71.2°F (21.8°C). Weather in September »

Weather in October

October, the same as September, in Monona, Iowa, is another mild autumn month, with an average temperature ranging between min 41.5°F (5.3°C) and max 57.2°F (14°C). The beginning of October marks a decrease in the average high-temperature, transitioning from a pleasant 71.2°F (21.8°C) in September to a refreshing 57.2°F (14°C). Weather in October »

Weather in November

The last month of the autumn, November, is another cold month in Monona, Iowa, with temperature in the range of an average low of 29.7°F (-1.3°C) and an average high of 42.6°F (5.9°C). The beginning of November marks a clear shift in the average high-temperature, receding from October's moderate 57.2°F (14°C) to a cold 42.6°F (5.9°C). Weather in November »

Weather in December

The first month of the winter, December, is still a freezing cold month in Monona, Iowa, with an average temperature varying between 18.7°F (-7.4°C) and 29.3°F (-1.5°C). December comes with a drop in the average high-temperature, falling from November's icy 42.6°F (5.9°C) to a subzero cold 29.3°F (-1.5°C). Weather in December »
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the coldest in Monona?

In Monona, January is known for its average lowest temperatures, reaching a high of 22.8°F (-5.1°C) and a low of 10°F (-12.2°C).

What is the most humid month in Monona?

January and February, with an average relative humidity of 88%, are most humid months in Monona.

What is the driest month in Monona?

January is the month with the least rainfall in Monona. Rain falls for 4.3 days and accumulates 1.18" (30mm) of precipitation.

How much does it rain in Monona?

Throughout the year, there are 145.2 rainfall days, and 31.85" (809mm) of precipitation is accumulated.

When does it snow in Monona?

Months with snowfall are January through May, October through December.

How much does it snow in Monona?

Throughout the year, in Monona, there are 59.9 snowfall days, and 25.67" (652mm) of snow is accumulated.

What is the month with the least sunshine in Monona?

With an average of 3.5h of sunshine, January has the least sunshine of the year.

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

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

When does it snow the most in Monona?

The month with the most snowfall in Monona, Iowa, is February, when snow falls for 13.4 days and typically aggregates up to 6.57" (167mm) of snow.

When is Daylight Saving Time (DST) in Monona?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Monona, 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 in Monona?

June is the month with the most rainfall in Monona, Iowa. Rain falls for 20 days and accumulates 5.08" (129mm) of precipitation.

When it does not snow in Monona?

June through September are months without snowfall in Monona.

When are the longest days in Monona?

The month with the longest days in Monona is June, with an average of 15h and 18min of daylight.

What is the warmest month in Monona?

July stands out as Monona's warmest month, with temperatures ranging between an average high of 79.3°F (26.3°C) and a low of 62.2°F (16.8°C).

When is the highest UV index in Monona?

July is the month with the highest UV index in Monona, Iowa, with an average maximum UV index of 6.

What month has the most sunshine in Monona?

With an average of 9.8h of sunshine, August has the most sunshine of the year.

What is the least humid month in Monona?

October is the least humid month, with an average relative humidity of 76%.

What is the month with the shortest days in Monona?

With an average of 9h and 6min of daylight, December has the shortest days of the year in Monona, Iowa.

Average temperature
Monona, IA

Average temperature - Monona, IA

The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (22.8°F).

The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (10°F).

Average pressure
Monona, IA

Average pressure - Monona, IA

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

Average wind speed
Monona, IA

Average wind speed - Monona, IA

The windiest month (with the highest average wind speed) is April (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.9mph).

Average humidity
Monona, IA

Average humidity - Monona, IA

The months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is October (76%).

Average rainfall
Monona, IA

Average rainfall - Monona, IA

The wettest month (with the highest rainfall) is June (5.08").
The driest month (with the least rainfall) is January (1.18").

Average rainfall days
Monona, IA

Average rainfall days - Monona, IA

The month with the highest number of rainy days is May (20.2 days).
The month with the least rainy days is February (4.1 days).

Average snowfall
Monona, IA

Average snowfall - Monona, IA

The month with the highest snowfall is February (6.57").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days
Monona, IA

Average snowfall days - Monona, IA

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
Monona, IA

Average daylight / Average sunshine - Monona, IA

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).

The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).

Average sunshine days
Monona, IA

Average sunshine days - Monona, IA

The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is June (7.8 days).

Average visibility
Monona, IA

Average visibility - Monona, IA

The months with the highest visibility are March, April, May, June, August, September, October and November (6mi).
The months with the lowest visibility are January, February, July and December (5mi).

Monona, Iowa, USA

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