Des Moines
Iowa, USA
Long-term weather forecast
Long-term weather forecast

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 ranging between min 14.4°F (-9.8°C) and max 30.9°F (-0.6°C). 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). Weather in January »
February, the last month of the winter, in Des Moines, is a wintry month, with average temperature ranging between max 36.1°F (2.3°C) and min 18.9°F (-7.3°C). In February, the average high-temperature is relatively the same as in January - a cold 36.1°F (2.3°C). Weather in February »

March, the first month of the spring, in Des Moines, is a frosty month, with temperature in the range of an average low of 29.7°F (-1.3°C) and an average high of 48.9°F (9.4°C). In Des Moines, the average high-temperature in March increases, from a cold 36.1°F (2.3°C) in February, to a frosty 48.9°F (9.4°C). Weather in March »

April in Des Moines, Iowa, is an enjoyable spring month, with temperature in the range of an average high of 62.2°F (16.8°C) and an average low of 41.2°F (5.1°C). In April, the average high-temperature rises, from a chilly 48.9°F (9.4°C) in March, to a comfortable 62.2°F (16.8°C). Weather in April »

The last month of the spring, May, is an agreeable month in Des Moines, Iowa, with temperature in the range of an average high of 72.3°F (22.4°C) and an average low of 52.2°F (11.2°C). In Des Moines, the average high-temperature in May increases, from a comfortable 62.2°F (16.8°C) in April, to an agreeable 72.3°F (22.4°C). Weather in May »

The first month of the summer, June, is a moderately hot month in Des Moines, Iowa, with average temperature ranging between max 81.7°F (27.6°C) and min 62.1°F (16.7°C). In June, the average high-temperature rises, from a pleasant 72.3°F (22.4°C) in May, to a moderately hot 81.7°F (27.6°C). Weather in June »

July, like June, in Des Moines, Iowa, is a moderately hot summer month, with average temperature fluctuating between 66.7°F (19.3°C) and 85.6°F (29.8°C). With an average high-temperature of 85.6°F (29.8°C) and an average low-temperature of 66.7°F (19.3°C), July is the warmest month. Weather in July »

The last month of the summer, August, is also a moderately hot month in Des Moines, Iowa, with average temperature varying between 64.8°F (18.2°C) and 83.8°F (28.8°C). In Des Moines, the average high-temperature in August is almost the same as in July - a still warm 83.8°F (28.8°C). Weather in August »

September, the first month of the autumn, in Des Moines, is also a moderately hot month, with average temperature varying between 76.1°F (24.5°C) and 55.2°F (12.9°C). In September, the average high-temperature slightly decreases, from 83.8°F (28.8°C) in August, to a still warm 76.1°F (24.5°C). Weather in September »

October, the same as September, is another comfortable autumn month in Des Moines, Iowa, with average temperature ranging between min 43°F (6.1°C) and max 63.1°F (17.3°C). In Des Moines, the average high-temperature in October decreases, from a warm 76.1°F (24.5°C) in September, to an enjoyable 63.1°F (17.3°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 declines considerably, from a comfortable 63.1°F (17.3°C) in October, to a frosty 47.8°F (8.8°C). Weather in November »

The first month of the winter, December, is still 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 drops, from a chilly 47.8°F (8.8°C) in November, to a wintry 34°F (1.1°C). Weather in December »

What is the coldest month in Des Moines?

January is the coldest month in Des Moines, 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?

The month with the least rainfall is January when the rain falls for 7.5 days and typically collects 1" (25.4mm) of precipitation.

When does it snow in Des Moines?

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

How many days 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.

What is the month with 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, Iowa.

What is the least humid month in Des Moines?

The least humid month is May, with an average relative humidity of 63%.

What is the wettest month in Des Moines?

The month with the most rainfall in Des Moines, Iowa, 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?

June has the longest days of the year, with an average of 15.2h of daylight.

When is 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 in Des Moines, Iowa.

What is the warmest month in Des Moines?

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).

What month has the most sunshine in Des Moines?

The month with the most sunshine in Des Moines, Iowa, is July, with an average of 10.9h of sunshine.

What is the most humid month in Des Moines?

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

When does it snow the most 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?

December has the shortest days of the year in Des Moines, Iowa, 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 humidity - Des Moines, IA
Average rainfall - Des Moines, IA
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
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