July weather forecast
Mason City, IL

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Weather in July

July, the same as June, is a moderately hot summer month in Mason City, Illinois, with an average temperature fluctuating between 82.4°F (28°C) and 65.8°F (18.8°C).

Temperature

July tends to be the warmest month, with temperatures averaging a daily high of 82.4°F (28°C) and a low of 65.8°F (18.8°C).

Heat index

During July, the heat index is calculated to be a tropical 91.4°F (33°C). Ensure additional precautions, heat exhaustion and heat cramps may be expected. Heatstroke could occur from sustained activity.
Factoring in the heat index, values are geared towards shaded areas with light breezes. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', blends air temperature and moisture content to represent the felt temperature to humans. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. Consider the fact that direct sun exposure can influence how hot one feels, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.

Humidity

The most humid month in Mason City is July, with an average relative humidity of 84%.

Rainfall

In Mason City, in July, it is raining for 16.3 days, with typically 2.28" (58mm) of accumulated precipitation. In Mason City, during the entire year, the rain falls for 150 days and collects up to 29.84" (758mm) of precipitation.

Snowfall

In Mason City, snow does not fall in May through September.

Daylight

In Mason City, the average length of the day in July is 14h and 42min.
On the first day of the month, sunrise is at 5:33 am and sunset at 8:32 pm. On the last day of July, sunrise is at 5:56 am and sunset at 8:13 pm CDT.

Sunshine

In July, the average sunshine is 10.1h.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: An average UV index of 6 in July transforms into this advice:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Updated: Jul 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the warmest month?

Mason City's warmest month, July, registers temperatures that range from a high of 82.4°F (28°C) to a low of 65.8°F (18.8°C).

Is it hot during July?

In July, in Mason City, the average high-temperature is 82.4°F (28°C), and the average low-temperature is 65.8°F (18.8°C). In July, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, is calculated to be 91.4°F (33°C).

What is the most humid month?

With an average relative humidity of 84%, July is the most humid month.

What is the average humidity in July in Mason City?

The average relative humidity in July is 84%.

How much does it rain in Mason City in July?

In Mason City, during July, the rain falls for 16.3 days and regularly aggregates up to 2.28" (58mm) of precipitation.

When it does not snow in Mason City?

May through September are months without snowfall.

How many hours of daylight does Mason City have in July?

In Mason City, the average day length in July is 14h and 42min.

What time are sunrise and sunset in July?

On the first day of July, sunrise is at 5:33 am and sunset at 8:32 pm. On the last day of the month, sunrise is at 5:56 am and sunset at 8:13 pm CDT.

How long on average sun shines in July in Mason City?

The average sunshine duration in July is 10.1h.

What are the months with the highest UV index?

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

What is the UV index reading in July?

In July, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high hazard to health from unsafe exposure to Sun's UV rays.
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
Mason City, IL

Average temperature in July - Mason City, IL
  • Average high temperature in July: 82.4°F

The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (32°F).

  • Average low temperature in July: 65.8°F

The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (19.9°F).

Average pressure in July
Mason City, IL

Average pressure in July - Mason City, IL
  • Average pressure in July: 29.97"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in July
Mason City, IL

Average wind speed in July - Mason City, IL
  • Average wind speed in July: 6.3mph

The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).

Average humidity in July
Mason City, IL

Average humidity in July - Mason City, IL
  • Average humidity in July: 84%

The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (70%).

Average rainfall in July
Mason City, IL

Average rainfall in July - Mason City, IL
  • Average rainfall in July: 2.28"

The wettest month (with the highest rainfall) is May (3.98").
The driest month (with the least rainfall) is December (1.46").

Average rainfall days in July
Mason City, IL

Average rainfall days in July - Mason City, IL
  • Average rainfall days in July: 16.3 days

The month with the highest number of rainy days is May (18.9 days).
The month with the least rainy days is February (6.2 days).

Average snowfall in July
Mason City, IL

Average snowfall in July - Mason City, IL
  • Average snowfall in July: 0"

The month with the highest snowfall is January (3.98").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in July
Mason City, IL

Average snowfall days in July - Mason City, IL
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (10.7 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
Mason City, IL

Average daylight in July / Average sunshine in July - Mason City, IL
  • Average daylight in July: 14h and 4min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in July: 10h and 1min

The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).

Average sunshine days in July
Mason City, IL

Average sunshine days in July - Mason City, IL
  • Average sunshine days in July: 11.5 days

The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is May (10.5 days).

Average UV index in July
Mason City, IL

Average UV index in July - Mason City, IL
  • Average UV index in July: 6

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in July
Mason City, IL

Average cloud cover in July - Mason City, IL
  • Average cloud cover in July: 30

The month with the most cloud cover is January (Cloud cover 55).
The months with the least cloud cover are August and September (Cloud cover 29).

Average visibility in July
Mason City, IL

Average visibility in July - Mason City, IL
  • Average visibility in July: 5mi

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

Mason City, Illinois, USA

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