August weather forecast
Malvern, IA

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Weather in August

The last month of the summer, August, is another warm month in Malvern, Iowa, with an average temperature varying between 63.1°F (17.3°C) and 82.4°F (28°C).

Temperature

The average high-temperature during August registers at a still warm 82.4°F (28°C), closely corresponding to the preceding month. In the month of August, the average low-temperature usually rests at a comfortable 63.1°F (17.3°C).

Heat index

In August, the average heat index is estimated at a hot 89.6°F (32°C). Continuing activity during long-lasting exposure might induce tiredness and result in heat cramps.
In the scope of the heat index, its values resonate with shade and light wind conditions. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', shows a temperature sensation when both heat and moisture conditions are combined. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. Awareness is key; direct sunlight can enhance the weather's impact, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

In August, the average relative humidity in Malvern is 78%.

Rainfall

In Malvern, Iowa, in August, during 14.1 rainfall days, 2.91" (74mm) of precipitation is typically accumulated. Throughout the year, there are 129.5 rainfall days, and 27.48" (698mm) of precipitation is accumulated.

Snowfall

In Malvern, snow does not fall in June through September.

Daylight

In Malvern, the average length of the day in August is 13h and 46min.
On the first day of August, sunrise is at 6:19 am and sunset at 8:38 pm. On the last day of the month, sunrise is at 6:48 am and sunset at 7:55 pm CDT.

Sunshine

In August, the average sunshine is 9.8h.

UV index

June through August, 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 health hazard from exposure to the Sun's UV radiation for the average person.
Note: In August, the maximum UV index of 6 transforms into these recommendations:
Adhere to precautions and respect sun safety doctrines. Avoiding sunburn is vital. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Updated: Jul 23, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in August?

In Malvern, in August, the average high-temperature is 82.4°F (28°C), and the average low-temperature is 63.1°F (17.3°C). In August, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which factors the actual air temperature with the relative humidity, is estimated at 89.6°F (32°C).

What is the average humidity in August?

In Malvern, the average relative humidity in August is 78%.

How many days does it rain in August?

In Malvern, during August, the rain falls for 14.1 days and regularly aggregates up to 2.91" (74mm) of precipitation.

When it does not snow?

June through September are months without snowfall.

What is the average length of the day in August?

In Malvern, the average day length in August is 13h and 46min.

When is the sunrise / sunset in August?

In August, on the first day of the month, sunrise is at 6:19 am and sunset at 8:38 pm. On the last day of the month, sunrise is at 6:48 am and sunset at 7:55 pm CDT.

How many hours of sunshine does Malvern have in August?

In August, the average sunshine duration is 9.8h.

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 intensity in August in Malvern?

In Malvern, the average daily maximum UV index in August is 6. A UV Index reading of 6 to 7 represents a high health threat 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 August
Malvern, IA

Average temperature in August - Malvern, IA
  • Average high temperature in August: 82.4°F

The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (30.6°F).

  • Average low temperature in August: 63.1°F

The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).

Average pressure in August
Malvern, IA

Average pressure in August - Malvern, IA
  • Average pressure in August: 29.95"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).

Average wind speed in August
Malvern, IA

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

The windiest month (with the highest average wind speed) is April (10.5mph).
The calmest month (with the lowest average wind speed) is July (6.8mph).

Average humidity in August
Malvern, IA

Average humidity in August - Malvern, IA
  • Average humidity in August: 78%

The month with the highest relative humidity is January (80%).
The month with the lowest relative humidity is October (67%).

Average rainfall in August
Malvern, IA

Average rainfall in August - Malvern, IA
  • Average rainfall in August: 2.91"

The wettest month (with the highest rainfall) is June (4.57").
The driest months (with the least rainfall) are January and February (0.83").

Average rainfall days in August
Malvern, IA

Average rainfall days in August - Malvern, IA
  • Average rainfall days in August: 14.1 days

The month with the highest number of rainy days is May (17.2 days).
The month with the least rainy days is February (3.8 days).

Average snowfall in August
Malvern, IA

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

The month with the highest snowfall is February (3.9").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in August
Malvern, IA

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

The month with the highest number of snowfall days is January (8.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in August / Average sunshine in August - Malvern, 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 5min

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 42min).

Average sunshine days in August
Malvern, IA

Average sunshine days in August - Malvern, IA
  • Average sunshine days in August: 13.8 days

The month with the most sunshine days is November (20.6 days).
The month with the least sunshine days is June (10.6 days).

Average UV index in August
Malvern, IA

Average UV index in August - Malvern, IA
  • Average UV index in August: 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, October, November and December (UV index 2).

Average cloud cover in August
Malvern, IA

Average cloud cover in August - Malvern, IA
  • Average cloud cover in August: 30

The month with the most cloud cover is January (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 27).

Average visibility in August
Malvern, IA

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

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

Malvern, Iowa, USA

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