Monthly weather forecast and climate
Des Moines, IA

A close view of city buildings in Des Moines, Iowa
A close view of city buildings in Des Moines, Iowa
January, the same as December, in Des Moines, Iowa, is a freezing cold winter month, with average temperature fluctuating between 14.4°F (-9.8°C) and 30.9°F (-0.6°C). With an average high-temperature of 30.9°F (-0.6°C) and an average low-temperature of 14.4°F (-9.8°C), January is the coldest month. Weather in January »
The last month of the winter, February, is a cold month in Des Moines, Iowa, with average temperature ranging between min. 18.9°F (-7.3°C) and max. 36.1°F (2.3°C). In Des Moines, the average high-temperature is 36.1°F (2.3°C), and the average low-temperature is 18.9°F (-7.3°C). Weather in February »

The first month of the spring, March, is a chilly month in Des Moines, Iowa, with average temperature fluctuating between 48.9°F (9.4°C) and 29.7°F (-1.3°C). In March, the average high-temperature is 48.9°F (9.4°C), and the average low-temperature is 29.7°F (-1.3°C). Weather in March »

April in Des Moines, Iowa, is a comfortable spring month, with average temperature varying between 41.2°F (5.1°C) and 62.2°F (16.8°C). The average high-temperature, is 62.2°F (16.8°C), while the average low-temperature is 41.2°F (5.1°C). Weather in April »

May, the last month of the spring, in Des Moines, is a pleasant month, with average temperature ranging between max. 72.3°F (22.4°C) and min. 52.2°F (11.2°C). In Des Moines, Iowa, the average high-temperature is 72.3°F (22.4°C), and the average low-temperature is 52.2°F (11.2°C). Weather in May »

June, the first month of the summer, in Des Moines, is a warm month, with average temperature ranging between min. 62.1°F (16.7°C) and max. 81.7°F (27.6°C). The average high-temperature, in Des Moines, is 81.7°F (27.6°C), while the average low-temperature is 62.1°F (16.7°C). Weather in June »

July, like June, in Des Moines, Iowa, is another warm summer month, with average temperature ranging between max. 85.6°F (29.8°C) and min. 66.7°F (19.3°C). July is the warmest month, with an average high-temperature of 85.6°F (29.8°C) and an average low-temperature of 66.7°F (19.3°C). Weather in July »

The last month of the summer, August, is another warm month in Des Moines, Iowa, with average temperature ranging between min. 64.8°F (18.2°C) and max. 83.8°F (28.8°C). In Des Moines, the average high-temperature is 83.8°F (28.8°C), and the average low-temperature is 64.8°F (18.2°C). Weather in August »

The first month of the autumn, September, is also a warm month in Des Moines, Iowa, with average temperature fluctuating between 76.1°F (24.5°C) and 55.2°F (12.9°C). In Des Moines, the average high-temperature is 76.1°F (24.5°C), and the average low-temperature is 55.2°F (12.9°C). Weather in September »

October, like September, in Des Moines, Iowa, is another comfortable autumn month, with average temperature fluctuating between 43°F (6.1°C) and 63.1°F (17.3°C). In October, the average high-temperature is 63.1°F (17.3°C), and the average low-temperature is 43°F (6.1°C). Weather in October »

November, the last month of the autumn, in Des Moines, is another chilly month, with average temperature fluctuating between 30.6°F (-0.8°C) and 47.8°F (8.8°C). In November, the average high-temperature is 47.8°F (8.8°C), and the average low-temperature is 30.6°F (-0.8°C). Weather in November »

The first month of the winter, December, is also a cold month in Des Moines, Iowa, with average temperature fluctuating between 18°F (-7.8°C) and 34°F (1.1°C). In December, the average high-temperature is 34°F (1.1°C), and the average low-temperature is 18°F (-7.8°C). Weather in December »

What is the coldest month in Des Moines?

January is the coldest month, with an average high-temperature of 30.9°F (-0.6°C) and an average low-temperature of 14.4°F (-9.8°C).

How much does it rain in Des Moines?

In Des Moines, during the entire year, the rain falls for 113.4 days and collects up to 36" (914.9mm) of precipitation.

What is the driest month in Des Moines?

January is the month with the least rainfall. Rain falls for 7.5 days and accumulates 1" (25.4mm) of precipitation.

When does it snow in Des Moines?

January through April, October through December are months with snowfall.

How much does it snow in Des Moines?

In Des Moines, Iowa, during the entire year, snow falls for 24.8 days, and aggregates up to 35.3" (896.7mm) of snow.

When is the lowest UV index in Des Moines?

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

What is the least humid month in Des Moines?

May is the least humid month in Des Moines, with an average relative humidity of 63%.

What is the wettest month in Des Moines?

The month with the most rainfall in Des Moines is June when the rain falls for 11.5 days and typically aggregates up to 4.9" (125.5mm) of precipitation.

When are the longest days in Des Moines?

With an average of 15.2h of daylight, June has the longest days of the year in Des Moines.

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

June and July, with an average maximum UV index of 9, are months with the highest UV index.

What is the warmest month in Des Moines?

The warmest month in Des Moines is July, with an average high-temperature of 85.6°F (29.8°C) and an average low-temperature of 66.7°F (19.3°C).

What month has the most sunshine in Des Moines?

The month with the most sunshine is July, with an average of 10.9h of sunshine.

What is the most humid month in Des Moines?

December is the most humid month, with an average relative humidity of 74.6%.

What is the snowiest month in Des Moines?

The month with the most snowfall in Des Moines, Iowa, is December when snow falls for 6.2 days and typically aggregates up to 9" (228.6mm) of snow.

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

The month with the shortest days is December, with an average of 9.2h of daylight.

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

December has the least sunshine of the year in Des Moines, with an average of 4.2h of sunshine.
Average temperature - Des Moines, IA
Average humidity - Des Moines, IA
Average rainfall - Des Moines, IA

The wettest month (with the highest rainfall) is June (125.5mm).
The driest month (with the lowest rainfall) is January (25.4mm).

Average rainfall days - Des Moines, IA

The month with the highest number of rainy days is May (12.5 days).
The month with the lowest number of rainy days is January (7.5 days).

Average snowfall - Des Moines, IA

The month with the highest snowfall is December (228.6mm).
Months with the lowest snowfall are May, June, July, August and September (0mm).

Average snowfall days - Des Moines, IA

The month with the highest number of snowfall days is January (6.5 days).
Months with the lowest number of snowfall days are May, June, July, August and September (0 days).

Average daylight / Average sunshine - Des Moines, IA
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