July weather forecastMystic, IA

July

Weather in July

July, like June, in Mystic, Iowa, is another warm summer month, with temperature in the range of an average low of 66°F (18.9°C) and an average high of 83.1°F (28.4°C).

Temperature

In Mystic, the month of July registers the highest temperatures, averaging 83.1°F (28.4°C) at the peak and 66°F (18.9°C) at the lowest.

Heat index

July's average heat index is estimated at a hot 91.4°F (33°C). Ensure extra safety measures, heat exhaustion and heat cramps are likely. Continuous activity might result in heatstroke.
Keep in mind the heat index values are meant for areas in shade and with light wind. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a measure of how hot it feels when the actual air humidity is factored in. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.

Humidity

The average relative humidity in July is 81%.

Rainfall

In Mystic, during July, the rain falls for 16 days and regularly aggregates up to 2.64" (67mm) of precipitation. In Mystic, during the entire year, the rain falls for 143.2 days and collects up to 27.48" (698mm) of precipitation.

Snowfall

June through September are months without snowfall in Mystic.

Daylight

In July, the average length of the day is 14h and 46min.
On the first day of the month, sunrise is at 5:44 am and sunset at 8:47 pm. On the last day of July, in Mystic, sunrise is at 6:08 am and sunset at 8:28 pm CDT.

Sunshine

With an average of 10.4h of sunshine, July has the most sunshine of the year.

UV index

The months with the highest UV index are June and July, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the average person.
Note: The maximum daily UV index, 6 in July, converts into the following recommendations:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Updated: Jun 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

In Mystic, temperatures reach their average annual highs in July, measuring 83.1°F (28.4°C) and a minimum average of 66°F (18.9°C).

The average high-temperature, in July, in Mystic, is 83.1°F (28.4°C), while the average low-temperature is 66°F (18.9°C). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines relative humidity and air temperature, in July is estimated at 91.4°F (33°C).

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

In Mystic, during July, the rain falls for 16 days and regularly aggregates up to 2.64" (67mm) of precipitation.

June through September are months without snowfall.

The average day length in July is 14h and 46min.

On the first day of July in Mystic, sunrise is at 5:44 am and sunset at 8:47 pm. On the last day of the month, sunrise is at 6:08 am and sunset at 8:28 pm CDT.

July has the most sunshine of the year in Mystic, with an average of 10.4h of sunshine.

In Mystic, Iowa, the average sunshine duration in July is 10.4h.

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

In Mystic, the average daily maximum UV index in July is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in July
Mystic, 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 (30.6°F).

  • Average low temperature in July: 66°F

The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (16.5°F).

Average pressure in July
Mystic, 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 (29.89"Hg).

Average wind speed in July
Mystic, IA

  • Average wind speed in July: 7mph

The windiest months (with the highest average wind speed) are January, February and March (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).

Average humidity in July
Mystic, IA

  • Average humidity in July: 81%

The month with the highest relative humidity is June (83%).
The month with the lowest relative humidity is October (72%).

Average rainfall in July
Mystic, IA

  • Average rainfall in July: 2.64"

The wettest month (with the highest rainfall) is June (3.98").
The driest month (with the least rainfall) is January (1.02").

Average rainfall days in July
Mystic, IA

  • Average rainfall days in July: 16 days

The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is January (5 days).

Average snowfall in July
Mystic, IA

  • Average snowfall in July: 0"

The month with the highest snowfall is January (4.33").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in July
Mystic, IA

  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (9.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

  • Average daylight in July: 14h and 48min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in July: 10h and 24min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).

Average sunshine days in July
Mystic, IA

  • Average sunshine days in July: 10.8 days

The month with the most sunshine days is November (18.6 days).
The month with the least sunshine days is June (8.8 days).

Average UV index in July
Mystic, 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
Mystic, IA

  • Average cloud cover in July: 29

The month with the most cloud cover is January (Cloud cover 53).
The months with the least cloud cover are July, August and September (Cloud cover 29).

Average visibility in July
Mystic, 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).