August weather forecast
Danville, IA

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Weather in August

The last month of the summer, August, is another warm month in Danville, Iowa, with temperature in the range of an average high of 81.7°F (27.6°C) and an average low of 63.3°F (17.4°C).

Temperature

Danville marks the start of August with an average high-temperature of a still moderately hot 81.7°F (27.6°C), hinting at a slight fluctuation from July's 82.4°F (28°C). Danville records an average nighttime low-temperature of 63.3°F (17.4°C) throughout August.

Heat index

August's heat index is calculated to be a hot 87.8°F (31°C). Ongoing exposure and activity could lead to a state of exhaustion, with a chance of heat cramps.
From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. When you're directly under the sun's rays, remember that the heat index may surge by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.

Humidity

In Danville, the average relative humidity in August is 79%.

Rainfall

In Danville, Iowa, in August, it is raining for 12 days, with typically 1.46" (37mm) of accumulated precipitation. Throughout the year, there are 130.4 rainfall days, and 21.81" (554mm) of precipitation is accumulated.

Snowfall

May through September are months without snowfall.

Daylight

In August, the average length of the day is 13h and 45min.
On the first day of the month, sunrise is at 6:02 am and sunset at 8:20 pm. On the last day of August, in Danville, sunrise is at 6:31 am and sunset at 7:38 pm CDT.

Sunshine

The average sunshine in August is 10h.

UV index

The average daily maximum UV index in August is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In August, an average UV index of 5 transforms into the following instructions:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Updated: Aug 11, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average August temperature?

In August, the average high-temperature and low-temperature in Danville are 81.7°F (27.6°C) and 63.3°F (17.4°C) respectively. In August, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, is calculated to be 87.8°F (31°C).

What is the average humidity in August?

In Danville, the average relative humidity in August is 79%.

How many days does it rain in August?

In Danville, in August, it is raining for 12 days, with typically 1.46" (37mm) of accumulated precipitation.

When it does not snow?

May through September are months without snowfall.

What is the average length of the day in August?

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

What time are sunrise and sunset in August?

On the first day of August, sunrise is at 6:02 am and sunset at 8:20 pm. On the last day of the month, sunrise is at 6:31 am and sunset at 7:38 pm CDT.

How long on average sun shines in August?

The average sunshine duration in August is 10h.

What is the UV index intensity in August in Danville?

In Danville, the average daily maximum UV index in August is 5. A UV Index estimate of 3 to 5 represents a moderate vulnerability 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
Danville, IA

Average temperature in August - Danville, IA
  • Average high temperature in August: 81.7°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 (29.7°F).

  • Average low temperature in August: 63.3°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 (17.4°F).

Average pressure in August
Danville, IA

Average pressure in August - Danville, IA
  • Average pressure in August: 29.97"Hg

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

Average wind speed in August
Danville, IA

Average wind speed in August - Danville, IA
  • Average wind speed in August: 6.8mph

The windiest months (with the highest average wind speed) are January, February, March and April (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).

Average humidity in August
Danville, IA

Average humidity in August - Danville, IA
  • Average humidity in August: 79%

The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (70%).

Average rainfall in August
Danville, IA

Average rainfall in August - Danville, IA
  • Average rainfall in August: 1.46"

The wettest month (with the highest rainfall) is May (3.23").
The driest month (with the least rainfall) is December (0.87").

Average rainfall days in August
Danville, IA

Average rainfall days in August - Danville, IA
  • Average rainfall days in August: 12 days

The month with the highest number of rainy days is May (16.7 days).
The month with the least rainy days is January (4.7 days).

Average snowfall in August
Danville, IA

Average snowfall in August - Danville, IA
  • Average snowfall in August: 0"

The month with the highest snowfall is January (3.03").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in August
Danville, IA

Average snowfall days in August - Danville, IA
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (10 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in August /
Average sunshine in August
Danville, IA

Average daylight in August / Average sunshine in August - Danville, 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: 10h and 0min

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 12min).

Average sunshine days in August
Danville, IA

Average sunshine days in August - Danville, IA
  • Average sunshine days in August: 16 days

The months with the most sunshine days are October and December (18.5 days).
The month with the least sunshine days is June (10.5 days).

Average UV index in August
Danville, IA

Average UV index in August - Danville, IA
  • Average UV index in August: 5

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 August
Danville, IA

Average cloud cover in August - Danville, IA
  • Average cloud cover in August: 29

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 August
Danville, IA

Average visibility in August - Danville, IA
  • Average visibility in August: 6mi

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).

Danville, Iowa, USA

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