August weather forecast
Shannon City, IA

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Weather in August

August, the last month of the summer in Shannon City, is also a moderately hot month, with an average temperature varying between 63°F (17.2°C) and 81°F (27.2°C).

Temperature

The commencement of August brings an average high-temperature of a still warm 81°F (27.2°C), marking an inconsequential divergence from July. Shannon City records an average low-temperature of 63°F (17.2°C) throughout the month of August.

Heat index

For August, the heat index is evaluated at a hot 86°F (30°C). Exhaustion might be the outcome of enduring exposure and continuous activity, with a risk of heat cramps.
Research indicates the heat index considers values in shaded locales and with light winds. 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' or 'real feel', joins air temperature with relative humidity to produce a temperature perception for humans. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. 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 quite important for children. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.

Humidity

The average relative humidity in August is 79%.

Rainfall

In August, the rain falls for 13.8 days. Throughout August, 2.44" (62mm) of precipitation is accumulated. Throughout the year, there are 127.7 rainfall days, and 23.39" (594mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall.

Daylight

In Shannon City, the average length of the day in August is 13h and 45min.
On the first day of August, sunrise is at 6:14 am and sunset at 8:32 pm. On the last day of the month, sunrise is at 6:43 am and sunset at 7:50 pm CDT.

Sunshine

In August, the average sunshine is 9.7h.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index in Shannon City. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the average person.
Note: A maximum daily UV index of 6 during August morphs into the following directions:
Shun overexposure. Protection from sun ravages is indispensable. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Updated: Jul 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in August?

During August, Shannon City experiences an average high-temperature of 81°F (27.2°C) and a low-temperature of 63°F (17.2°C). In August, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines relative humidity and air temperature, is evaluated at 86°F (30°C).

What is the average humidity in August?

In Shannon City, Iowa, the average relative humidity in August is 79%.

How much does it rain in August?

In August, the rain falls for 13.8 days. Throughout August, 2.44" (62mm) of precipitation is accumulated.

When it does not snow?

In Shannon City, snow does not fall in June through September.

What is the average length of the day in August?

In August, the average day length in Shannon City is 13h and 45min.

When are sunrise and sunset in August?

On the first day of August, sunrise is at 6:14 am and sunset at 8:32 pm. On the last day of the month, sunrise is at 6:43 am and sunset at 7:50 pm CDT.

How long on average sun shines in August?

In August, the average sunshine duration is 9.7h.

When is 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 August?

The average daily maximum UV index in August is 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's 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 August
Shannon City, IA

Average temperature in August - Shannon City, IA
  • Average high temperature in August: 81°F

The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (29.1°F).

  • Average low temperature in August: 63°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 (15.8°F).

Average pressure in August
Shannon City, IA

Average pressure in August - Shannon City, IA
  • Average pressure in August: 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).

Average wind speed in August
Shannon City, IA

Average wind speed in August - Shannon City, IA
  • Average wind speed in August: 7.1mph

The windiest months (with the highest average wind speed) are January and February (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).

Average humidity in August
Shannon City, IA

Average humidity in August - Shannon City, IA
  • Average humidity in August: 79%

The months with the highest relative humidity are January and June (82%).
The month with the lowest relative humidity is October (71%).

Average rainfall in August
Shannon City, IA

Average rainfall in August - Shannon City, IA
  • Average rainfall in August: 2.44"

The wettest month (with the highest rainfall) is June (4.17").
The driest month (with the least rainfall) is January (0.75").

Average rainfall days in August
Shannon City, IA

Average rainfall days in August - Shannon City, IA
  • Average rainfall days in August: 13.8 days

The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is January (3.7 days).

Average snowfall in August
Shannon City, IA

Average snowfall in August - Shannon City, IA
  • Average snowfall in August: 0"

The month with the highest snowfall is January (3.15").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in August
Shannon City, IA

Average snowfall days in August - Shannon City, IA
  • Average snowfall days in August: 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).

Average daylight in August /
Average sunshine in August
Shannon City, IA

Average daylight in August / Average sunshine in August - Shannon City, IA
  • Average daylight in August: 13h and 5min

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 August: 9h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).

Average sunshine days in August
Shannon City, IA

Average sunshine days in August - Shannon City, IA
  • Average sunshine days in August: 14.3 days

The month with the most sunshine days is November (20.2 days).
The month with the least sunshine days is May (10.7 days).

Average UV index in August
Shannon City, IA

Average UV index in August - Shannon City, IA
  • Average UV index in August: 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).

Average cloud cover in August
Shannon City, IA

Average cloud cover in August - Shannon City, IA
  • Average cloud cover in August: 31

The month with the most cloud cover is January (Cloud cover 53).
The months with the least cloud cover are July and September (Cloud cover 30).

Average visibility in August
Shannon City, IA

Average visibility in August - Shannon City, IA
  • Average visibility in August: 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).

Shannon City, Iowa, USA

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