Climate and monthly weather forecast
Des Moines, IA

City buildings in Des Moines, Iowa
City buildings in Des Moines, Iowa

Weather in January

January, the same as December, in Des Moines, Iowa, is a freezing cold winter month, with an average temperature varying between 28.2°F (-2.1°C) and 15.1°F (-9.4°C). The coldest month is January, with an average high-temperature of 28.2°F (-2.1°C) and an average low-temperature of 15.1°F (-9.4°C). Weather in January »

Weather in February

The last month of the winter, February, is a wintry month in Des Moines, Iowa, with an average temperature ranging between max 32.4°F (0.2°C) and min 18°F (-7.8°C). In February, the average high-temperature is almost the same as in January - a cold 32.4°F (0.2°C). Weather in February »

Weather in March

March, the first month of the spring in Des Moines, is a frosty month, with an average temperature fluctuating between 47.5°F (8.6°C) and 32.2°F (0.1°C). In March, the average high-temperature increases considerably from a cold 32.4°F (0.2°C) in February to a chilly 47.5°F (8.6°C). Weather in March »

Weather in April

April in Des Moines, Iowa, is a moderate spring month, with temperature in the range of an average high of 59.7°F (15.4°C) and an average low of 42.4°F (5.8°C). In Des Moines, the average high-temperature in April rises from a chilly 47.5°F (8.6°C) in March to a moderate 59.7°F (15.4°C). Weather in April »

Weather in May

The last month of the spring, May, is an agreeable month in Des Moines, Iowa, with an average temperature ranging between max 69.6°F (20.9°C) and min 53.1°F (11.7°C). In May, the average high-temperature rises from a moderate 59.7°F (15.4°C) in April to an agreeable 69.6°F (20.9°C). Weather in May »

Weather in June

The first month of the summer, June, is a warm month in Des Moines, Iowa, with temperature in the range of an average low of 62.8°F (17.1°C) and an average high of 79.5°F (26.4°C). In Des Moines, the average high-temperature in June rises from a pleasant 69.6°F (20.9°C) in May to a warm 79.5°F (26.4°C). Weather in June »

Weather in July

July, the same as June, is another warm summer month in Des Moines, Iowa, with an average temperature ranging between max 83.1°F (28.4°C) and min 65.5°F (18.6°C). With an average high-temperature of 83.1°F (28.4°C) and an average low-temperature of 65.5°F (18.6°C), July is the warmest month. The average heat index in July is calculated to be a hot 91.4°F (33°C). Weather in July »

Weather in August

August, the last month of the summer in Des Moines, is another warm month, with an average temperature varying between 62.6°F (17°C) and 81.7°F (27.6°C). In August, the average high-temperature is relatively the same as in July - a still warm 81.7°F (27.6°C). Weather in August »

Weather in September

September, the first month of the autumn in Des Moines, is also a moderately hot month, with temperature in the range of an average high of 75.6°F (24.2°C) and an average low of 55.9°F (13.3°C). In September, the average high-temperature slightly decreases from a warm 81.7°F (27.6°C) in August to a still moderately hot 75.6°F (24.2°C). Weather in September »

Weather in October

October, like September, is another mild autumn month in Des Moines, Iowa, with an average temperature ranging between min 45°F (7.2°C) and max 60.6°F (15.9°C). In October, the average high-temperature plummets from a moderately hot 75.6°F (24.2°C) in September to a moderate 60.6°F (15.9°C). Weather in October »

Weather in November

November, the last month of the autumn in Des Moines, is also a frosty month, with an average temperature varying between 32.7°F (0.4°C) and 47.1°F (8.4°C). In November, the average high-temperature drops from a moderate 60.6°F (15.9°C) in October to a chilly 47.1°F (8.4°C). Weather in November »

Weather in December

December, the first month of the winter in Des Moines, is also a wintry month, with an average temperature varying between 34.2°F (1.2°C) and 22.5°F (-5.3°C). In Des Moines, the average high-temperature in December drops from a frosty 47.1°F (8.4°C) in November to a wintry 34.2°F (1.2°C). Weather in December »
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FAQ

What is the coldest month in Des Moines?

With an average high-temperature of 28.2°F (-2.1°C) and an average low-temperature of 15.1°F (-9.4°C), January is the coldest month in Des Moines, Iowa.

What is the most humid month in Des Moines?

The months with the highest humidity in Des Moines are January and June, with an average relative humidity of 82%.

What is the driest month in Des Moines?

The month with the least rainfall in Des Moines, Iowa, is January, when the rain falls for 4 days and typically collects 0.47" (12mm) of precipitation.

How much does it rain in Des Moines?

In Des Moines, during the entire year, the rain falls for 114.4 days and collects up to 16.38" (416mm) of precipitation.

When does it snow in Des Moines?

January through May, October through December are months with snowfall in Des Moines, Iowa.

What is the snowiest month in Des Moines?

January is the month with the most snowfall in Des Moines, Iowa. Snow falls for 8.7 days and accumulates 2.24" (57mm) of snow.

How much does it snow in Des Moines?

In Des Moines, Iowa, during the entire year, snow falls for 30.9 days and aggregates up to 7.36" (187mm) of snow.

What is the month with the least sunshine in Des Moines?

January has the least sunshine of the year in Des Moines, Iowa, with an average of 4.3h of sunshine.

What is the month with the lowest UV index in Des Moines?

The month with the lowest UV index in Des Moines, Iowa, is January, with an average maximum UV index of 1.

When is Daylight Saving Time (DST) in Des Moines?

On Sunday, March 13. 2022, at 2:00 am, Daylight Saving Time starts in Des Moines, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 6. 2022, at 2:00 am, and the time zone reverts from CDT to CST.

What is the rainiest month in Des Moines?

The month with the most rainfall in Des Moines, Iowa, is May, when the rain falls for 15.3 days and typically aggregates up to 2.76" (70mm) of precipitation.

When it does not snow in Des Moines?

In Des Moines, Iowa, snow does not fall in June through September.

When are the longest days in Des Moines?

The month with the longest days in Des Moines is June, with an average of 15h and 8min of daylight.

When is the highest UV index in Des Moines?

June through August, with an average maximum UV index of 6, are months with the highest UV index in Des Moines, Iowa.

What is the warmest month in Des Moines?

July is the warmest month, with an average high-temperature of 83.1°F (28.4°C) and an average low-temperature of 65.5°F (18.6°C).

What month has the most sunshine in Des Moines?

With an average of 10.3h of sunshine, July has the most sunshine of the year.

What is the least humid month in Des Moines?

With an average relative humidity of 70%, October is the least humid month in Des Moines, Iowa.

What is the month with the shortest days in Des Moines?

December has the shortest days of the year, with an average of 9h and 13min of daylight.

Average temperature
Des Moines, IA

Average temperature - Des Moines, IA

The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (28.2°F).

The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (15.1°F).

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Average pressure
Des Moines, IA

Average pressure - Des Moines, IA

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

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Average wind speed
Des Moines, IA

Average wind speed - Des Moines, IA

The windiest months (with the highest average wind speed) are January, February, March and April (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).

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Average humidity
Des Moines, IA

Average humidity - Des Moines, IA

The months with the highest relative humidity are January and June (82%).
The month with the lowest relative humidity is October (70%).

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Average rainfall
Des Moines, IA

Average rainfall - Des Moines, IA

The wettest month (with the highest rainfall) is May (2.76").
The driest month (with the least rainfall) is January (0.47").

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Average rainfall days
Des Moines, IA

Average rainfall days - Des Moines, IA

The month with the highest number of rainy days is June (15.9 days).
The month with the least rainy days is February (3 days).

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Average snowfall
Des Moines, IA

Average snowfall - Des Moines, IA

The month with the highest snowfall is January (2.24").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days
Des Moines, IA

Average snowfall days - Des Moines, IA

The month with the highest number of snowfall days is January (8.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight / Average sunshine
Des Moines, IA

Average daylight / Average sunshine - Des Moines, IA

The month with the longest days is June (Average daylight: 15h and 8min).
The month with the shortest days is December (Average daylight: 9h and 13min).

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).

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Average sunshine days
Des Moines, IA

Average sunshine days - Des Moines, IA

The month with the most sunshine days is December (22.3 days).
The month with the least sunshine days is June (12.2 days).

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Average visibility
Des Moines, IA

Average visibility - Des Moines, IA

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

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