Monthly weather forecast and climate
Des Moines, IA

City buildings in Des Moines, Iowa
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 max 28.2°F (-2.1°C) and min 15.1°F (-9.4°C). 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. Weather in January »

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

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

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

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

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

July, like June, in Des Moines, Iowa, is a moderately hot summer month, with temperature in the range of an average low of 65.5°F (18.6°C) and an average high of 83.1°F (28.4°C). The warmest month is July, with an average high-temperature of 83.1°F (28.4°C) and an average low-temperature of 65.5°F (18.6°C). The average heat index in July is evaluated at a tropical 91.9°F (33.3°C). Weather in July »

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

The first month of the autumn, September, is still a warm month in Des Moines, Iowa, 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 marginally drops, from 81.7°F (27.6°C) in August, to a still warm 75.6°F (24.2°C). Weather in September »

October, like September, is another mild autumn month in Des Moines, Iowa, with average temperature ranging between max 60.6°F (15.9°C) and min 45°F (7.2°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 »

November, the last month of the autumn, in Des Moines, is another chilly month, with average temperature ranging between min 32.7°F (0.4°C) and max 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 frosty 47.1°F (8.4°C). Weather in November »

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

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.

What are the most humid months in Des Moines?

Months with the highest humidity are January and June, with an average relative humidity of 82%.

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.

What is the driest month in Des Moines?

January is the month with the least rainfall in Des Moines, Iowa. Rain falls for 4 days and accumulates 0.47" (12mm) of precipitation.

When does it snow in Des Moines?

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

How much does it snow in Des Moines?

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

When does it snow the most 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.

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

January has the least sunshine of the year, with an average of 4.3h of sunshine.

When is the lowest UV index in Des Moines?

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

What is the rainiest month in Des Moines?

The month with the most rainfall in Des Moines 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?

June through September are months without snowfall.

When are the longest days in Des Moines?

The month with the longest days is June, with an average of 15.2h of daylight.

When is the highest UV index in Des Moines?

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

What is the warmest month in Des Moines?

July is the warmest month in Des Moines, Iowa, 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?

The month with the most sunshine is July, with an average of 10.3h of sunshine.

What is the least humid month in Des Moines?

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

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

With an average of 9.2h of daylight, December has the shortest days of the year.
Average temperature - Des Moines, IA
Average pressure - Des Moines, IA

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

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).

Average humidity - Des Moines, IA
Average rainfall - Des Moines, IA
Average rainfall days - Des Moines, IA
Average snowfall - Des Moines, IA
Average snowfall days - Des Moines, IA

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

Average daylight / Average sunshine - Des Moines, IA

The month with the longest days is June (Average daylight: 15.2h).
The month with the shortest days is December (Average daylight: 9.2h).

The month with the most sunshine is July (Average sunshine: 10.3h).
The month with the least sunshine is January (Average sunshine: 4.3h).

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).

Average visibility - Des Moines, IA

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