July weather forecast
Des Moines, IA

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

Weather in July

July, like June, in Des Moines, Iowa, is a moderately hot summer month, with an average temperature varying between 83.1°F (28.4°C) and 65.5°F (18.6°C).

Temperature

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).

Heat index

The average heat index in July is estimated at a tropical 91.4°F (33°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature', 'felt air temperature', 'real feel', or 'feels like', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (pregnancy, clothing, wind). Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

In Des Moines, the average relative humidity in July is 81%.

Rainfall

In Des Moines, in July, during 12.9 rainfall days, 1.5" (38mm) of precipitation is typically accumulated. In Des Moines, during the entire year, the rain falls for 114.4 days and collects up to 16.38" (416mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

In July, the average length of the day is 14h and 50min.
On the first day of July, sunrise is at 5:44 am and sunset at 8:52 pm. On the last day of the month, sunrise is at 6:08 am and sunset at 8:33 pm CDT.

Sunshine

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

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index in Des Moines, Iowa. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: The average daily UV index of 6 in July transform into the following instructions:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the warmest month in Des Moines?

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).

What is the temperature in July in Des Moines?

The average high-temperature, in July, in Des Moines, is 83.1°F (28.4°C), while the average low-temperature is 65.5°F (18.6°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which calculates the temperature value influenced by the moisture in the air, in July is estimated at 91.4°F (33°C).

What is the average humidity in July in Des Moines?

The average relative humidity in July in Des Moines is 81%.

How many days does it rain in July in Des Moines?

In Des Moines, Iowa, during July, the rain falls for 12.9 days and regularly aggregates up to 1.5" (38mm) of precipitation.

When it does not snow in Des Moines?

June through September are months without snowfall in Des Moines, Iowa.

How many hours of daylight does Des Moines have in July?

The average day length in July is 14h and 50min.

When is the sunrise / sunset in July in Des Moines?

On the first day of July in Des Moines, sunrise is at 5:44 am and sunset at 8:52 pm. On the last day of the month, sunrise is at 6:08 am and sunset at 8:33 pm CDT.

What month has the most sunshine in Des Moines?

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

How long on average sun shines in July in Des Moines?

The average sunshine duration in July is 10.3h.

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

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

How high is the UV index in July in Des Moines?

In Des Moines, Iowa, the average daily maximum UV index in July is 6. A UV Index estimate of 6 to 7 represents a high health threat from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in July
Des Moines, IA

Average temperature in July - Des Moines, IA
  • Average high temperature in July: 83.1°F

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).

  • Average low temperature in July: 65.5°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 in July
Des Moines, IA

Average pressure in July - Des Moines, IA
  • Average pressure in July: 29.96"Hg

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 in July
Des Moines, IA

Average wind speed in July - Des Moines, IA
  • Average wind speed in July: 7mph

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 in July
Des Moines, IA

Average humidity in July - Des Moines, IA
  • Average humidity in July: 81%

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 in July
Des Moines, IA

Average rainfall in July - Des Moines, IA
  • Average rainfall in July: 1.5"

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 in July
Des Moines, IA

Average rainfall days in July - Des Moines, IA
  • Average rainfall days in July: 12.9 days

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 in July
Des Moines, IA

Average snowfall in July - Des Moines, IA
  • Average snowfall in July: 0"

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 in July
Des Moines, IA

Average snowfall days in July - Des Moines, IA
  • Average snowfall days in July: 0 days

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 in July /
Average sunshine in July
Des Moines, IA

Average daylight in July / Average sunshine in July - Des Moines, IA
  • Average daylight in July: 14h and 50min

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).

  • Average sunshine in July: 10h and 18min

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 in July
Des Moines, IA

Average sunshine days in July - Des Moines, IA
  • Average sunshine days in July: 15.5 days

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 UV index in July
Des Moines, IA

Average UV index in July - Des Moines, IA
  • Average UV index in July: 6

The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).

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Average cloud cover in July
Des Moines, IA

Average cloud cover in July - Des Moines, IA
  • Average cloud cover in July: 29

The month with the most cloud cover is January (Cloud cover 54).
The months with the least cloud cover are July and September (Cloud cover 29).

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Average visibility in July
Des Moines, IA

Average visibility in July - Des Moines, IA
  • Average visibility in July: 6mi

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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