August weather forecast
Cumberland, IA

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Weather in August

August, the last month of the summer in Cumberland, is also a moderately hot month, with temperature in the range of an average high of 81.1°F (27.3°C) and an average low of 62.2°F (16.8°C).

Temperature

The start of August marks an average high-temperature of a still moderately hot 81.1°F (27.3°C), hardly distinguishable from the conditions in July. Cumberland registers a consistent average low-temperature of 62.2°F (16.8°C) during August.

Heat index

For August, the heat index is computed to be a tropical 86°F (30°C). A sense of exhaustion might occur with extended exposure and activity, potentially causing heat cramps.
Heat index details are generally centered around shaded locations and a mild breeze. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is achieved by amalgamating air temperature with the relative humidity readings. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.

Humidity

The average relative humidity in August is 79%.

Rainfall

In Cumberland, in August, during 12.8 rainfall days, 2.48" (63mm) of precipitation is typically accumulated. In Cumberland, Iowa, during the entire year, the rain falls for 118.7 days and collects up to 20.79" (528mm) of precipitation.

Snowfall

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

Daylight

The average length of the day in August is 13h and 47min.
On the first day of the month, sunrise is at 6:15 am and sunset at 8:35 pm. On the last day of August, sunrise is at 6:45 am and sunset at 7:53 pm CDT.

Sunshine

In Cumberland, Iowa, the average sunshine in August is 9.8h.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: The daily high UV index of 6 during August translates into the following recommendations:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Updated: Aug 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in August?

The average high-temperature and low-temperature in Cumberland during August are 81.1°F (27.3°C) and 62.2°F (16.8°C) respectively. The average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines relative humidity and air temperature, in August is computed to be 86°F (30°C).

What is the average humidity in August?

In August, the average relative humidity is 79%.

How many days does it rain in August?

In Cumberland, in August, during 12.8 rainfall days, 2.48" (63mm) of precipitation is typically accumulated.

When it does not snow?

June through September are months without snowfall.

What is the average length of the day in August in Cumberland?

In August, the average day length is 13h and 47min.

When are sunrise and sunset in August?

On the first day of August in Cumberland, sunrise is at 6:15 am and sunset at 8:35 pm. On the last day of the month, sunrise is at 6:45 am and sunset at 7:53 pm CDT.

How long on average sun shines in August?

In August, the average sunshine duration is 9.8h.

What is the month 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 August in Cumberland?

The average daily maximum UV index in August is 6. A UV Index estimate of 6 to 7 represents a high health 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
Cumberland, IA

Average temperature in August - Cumberland, IA
  • Average high temperature in August: 81.1°F

The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (28.4°F).

  • Average low temperature in August: 62.2°F

The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (15.1°F).

Average pressure in August
Cumberland, IA

Average pressure in August - Cumberland, 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 (29.87"Hg).

Average wind speed in August
Cumberland, IA

Average wind speed in August - Cumberland, IA
  • Average wind speed in August: 7.3mph

The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).

Average humidity in August
Cumberland, IA

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

The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is October (69%).

Average rainfall in August
Cumberland, IA

Average rainfall in August - Cumberland, IA
  • Average rainfall in August: 2.48"

The wettest month (with the highest rainfall) is June (3.7").
The driest month (with the least rainfall) is January (0.59").

Average rainfall days in August
Cumberland, IA

Average rainfall days in August - Cumberland, IA
  • Average rainfall days in August: 12.8 days

The month with the highest number of rainy days is June (16.4 days).
The month with the least rainy days is February (3.1 days).

Average snowfall in August
Cumberland, IA

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

The month with the highest snowfall is February (2.36").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in August
Cumberland, IA

Average snowfall days in August - Cumberland, 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
Cumberland, IA

Average daylight in August / Average sunshine in August - Cumberland, 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 30min).

Average sunshine days in August
Cumberland, IA

Average sunshine days in August - Cumberland, IA
  • Average sunshine days in August: 14.9 days

The month with the most sunshine days is December (21.2 days).
The month with the least sunshine days is June (10.8 days).

Average UV index in August
Cumberland, IA

Average UV index in August - Cumberland, 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
Cumberland, IA

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

The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 28).

Average visibility in August
Cumberland, IA

Average visibility in August - Cumberland, 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).

Cumberland, Iowa, USA

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