July weather forecast
Coralville, IA

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Weather in July

July is when Coralville basks in the heart of the summer season. The Ultraviolet Index reaches its peak at 6, marking the intensity of the summer sun. Transitioning into August, the weather continues to offer just the right amount of sunlight, perfect for an all-day beach outing. As compared to June, July is marginally hotter with more intense sunrays. Boasting ample sunlight hours and warm temperatures, July presents ideal conditions for a summer excursion.

Temperature

In Coralville, the peak average temperatures are observed in July, with a high of 81.5°F (27.5°C) and a low of 64.6°F (18.1°C).

Heat index

The average heat index in July is calculated to be a tropical 87.8°F (31°C). Uninterrupted activity during exposure could lead to a sense of exhaustion, possibly causing heat cramps.
Metrics for the heat index primarily focus on shaded spots and light wind conditions. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', unifies temperature and humidity readings to offer a comprehensive feel of warmth. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.

Humidity

January and July, with an average relative humidity of 83%, are the most humid months.

Rainfall

In Coralville, Iowa, in July, during 15.2 rainfall days, 3.03" (77mm) of precipitation is typically accumulated. Throughout the year, there are 140.4 rainfall days, and 29.57" (751mm) of precipitation is accumulated.

Snowfall

In Coralville, snow does not fall in May through September.

Daylight

In July, the average length of the day is 14h and 51min.
On the first day of July, sunrise is at 5:36 am and sunset at 8:44 pm. On the last day of the month, sunrise is at 6:00 am and sunset at 8:25 pm CDT.

Sunshine

The month with the most sunshine is July, with an average of 10h of sunshine.

UV index

June and July, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index, 6 in July, converts into the following recommendations:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Updated: Jul 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the warmest months in Coralville?

July is the month when Coralville experiences its warmest temperatures, averaging a high of 81.5°F (27.5°C) and a low of 64.6°F (18.1°C).

What is the temperature in July?

In July, the average high-temperature and low-temperature are 81.5°F (27.5°C) and 64.6°F (18.1°C) respectively. In July, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines relative humidity and air temperature, is calculated to be 87.8°F (31°C).

What are the most humid months?

January and July, with an average relative humidity of 83%, are most humid months.

What is the average humidity in July?

In Coralville, the average relative humidity in July is 83%.

How much does it rain in July?

In Coralville, in July, it is raining for 15.2 days, with typically 3.03" (77mm) of accumulated precipitation.

When it does not snow?

May through September are months without snowfall.

How many hours of daylight does Coralville have in July?

In Coralville, the average day length in July is 14h and 51min.

When is the sunrise / sunset in July?

In July, on the first day of the month, sunrise is at 5:36 am and sunset at 8:44 pm. On the last day of the month, sunrise is at 6:00 am and sunset at 8:25 pm CDT.

What month has the most sunshine?

The month with the most sunshine is July, with an average of 10h of sunshine.

How long on average sun shines in July?

In Coralville, the average sunshine duration in July is 10h.

What are the months with the highest UV index?

The months with the highest UV index are June and July, with an average maximum UV index of 6.

How high is the UV index in July?

The average daily maximum UV index in July in Coralville is 6. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in July
Coralville, IA

Average temperature in July - Coralville, IA
  • Average high temperature in July: 81.5°F

The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (27.3°F).

  • Average low temperature in July: 64.6°F

The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (15.3°F).

Average pressure in July
Coralville, IA

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

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

Average wind speed in July
Coralville, IA

Average wind speed in July - Coralville, IA
  • Average wind speed in July: 6.9mph

The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (6.9mph).

Average humidity in July
Coralville, IA

Average humidity in July - Coralville, IA
  • Average humidity in July: 83%

The months with the highest relative humidity are January and July (83%).
The month with the lowest relative humidity is October (72%).

Average rainfall in July
Coralville, IA

Average rainfall in July - Coralville, IA
  • Average rainfall in July: 3.03"

The wettest month (with the highest rainfall) is May (4.69").
The driest months (with the least rainfall) are January and February (1.34").

Average rainfall days in July
Coralville, IA

Average rainfall days in July - Coralville, IA
  • Average rainfall days in July: 15.2 days

The month with the highest number of rainy days is May (18.4 days).
The month with the least rainy days is February (5 days).

Average snowfall in July
Coralville, IA

Average snowfall in July - Coralville, IA
  • Average snowfall in July: 0"

The month with the highest snowfall is January (5.28").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in July
Coralville, IA

Average snowfall days in July - Coralville, IA
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (10.9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in July /
Average sunshine in July
Coralville, IA

Average daylight in July / Average sunshine in July - Coralville, IA
  • Average daylight in July: 14h and 5min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in July: 10h and 0min

The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

Average sunshine days in July
Coralville, IA

Average sunshine days in July - Coralville, IA
  • Average sunshine days in July: 12.2 days

The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is May (10 days).

Average UV index in July
Coralville, IA

Average UV index in July - Coralville, IA
  • Average UV index in July: 6

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

Average cloud cover in July
Coralville, IA

Average cloud cover in July - Coralville, IA
  • Average cloud cover in July: 32

The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 29).

Average visibility in July
Coralville, IA

Average visibility in July - Coralville, IA
  • Average visibility in July: 5mi

The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).

Coralville, Iowa, USA

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