August weather forecast
Garden Grove, IA

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Weather in August

August, the last month of the summer in Garden Grove, is another warm month, with an average temperature ranging between max 81.9°F (27.7°C) and min 63.5°F (17.5°C).

Temperature

Garden Grove registers an average high-temperature of a still moderately hot 81.9°F (27.7°C) with the arrival of August, showing minor deviation from the preceding month. The average low-temperature of 63.5°F (17.5°C) is witnessed during August.

Heat index

For most parts of August, the heat index is estimated at a hot 87.8°F (31°C). Continuing activity during long-lasting exposure might induce tiredness and result in heat cramps.
It is crucial to understand that heat index figures are for shade and gentle wind conditions. With exposure to direct sunshine, the heat index could climb by 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. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. 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

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

Rainfall

In Garden Grove, in August, during 13.3 rainfall days, 1.93" (49mm) of precipitation is typically accumulated. In Garden Grove, Iowa, during the entire year, the rain falls for 132.4 days and collects up to 20.24" (514mm) of precipitation.

Snowfall

In Garden Grove, snow does not fall in June through September.

Daylight

In August, the average length of the day is 13h and 45min.
On the first day of August in Garden Grove, sunrise is at 6:11 am and sunset at 8:29 pm. On the last day of the month, sunrise is at 6:41 am and sunset at 7:47 pm CDT.

Sunshine

The average sunshine in August in Garden Grove is 10h.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the average person.
Note: The maximum daily UV index, 6 in August, converts into the following recommendations:
Take precautions against overexposure. Protection against sun damage is needed. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
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Frequently asked questions

What is the temperature in August in Garden Grove?

In August, the average high-temperature and low-temperature in Garden Grove are 81.9°F (27.7°C) and 63.5°F (17.5°C) respectively. The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in August is estimated at 87.8°F (31°C).

What is the average humidity in August in Garden Grove?

The average relative humidity in August is 79%.

How many days does it rain in August in Garden Grove?

In Garden Grove, Iowa, in August, it is raining for 13.3 days, with typically 1.93" (49mm) of accumulated precipitation.

When it does not snow in Garden Grove?

In Garden Grove, Iowa, snow does not fall in June through September.

What is the average length of the day in August in Garden Grove?

In August, the average day length in Garden Grove, Iowa, is 13h and 45min.

When is the sunrise / sunset in August in Garden Grove?

In August, on the first day of the month, sunrise is at 6:11 am and sunset at 8:29 pm. On the last day of the month, in Garden Grove, sunrise is at 6:41 am and sunset at 7:47 pm CDT.

How long on average sun shines in August in Garden Grove?

In Garden Grove, the average sunshine duration in August is 10h.

When is the highest UV index in Garden Grove?

The months with the highest UV index in Garden Grove, Iowa, are June through August, with an average maximum UV index of 6.

What is the UV index intensity in August in Garden Grove?

In Garden Grove, the average daily maximum UV index in August is 6. A UV Index reading of 6 to 7 represents a high health threat from unsafe exposure to Sun's UV rays.
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
Garden Grove, IA

Average temperature in August - Garden Grove, IA
  • Average high temperature in August: 81.9°F

The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (30.6°F).

  • Average low temperature in August: 63.5°F

The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (16.9°F).

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Average pressure in August
Garden Grove, IA

Average pressure in August - Garden Grove, 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 (29.89"Hg).

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Average wind speed in August
Garden Grove, IA

Average wind speed in August - Garden Grove, IA
  • Average wind speed in August: 6.9mph

The windiest months (with the highest average wind speed) are January, February and March (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.9mph).

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Average humidity in August
Garden Grove, IA

Average humidity in August - Garden Grove, IA
  • Average humidity in August: 79%

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

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Average rainfall in August
Garden Grove, IA

Average rainfall in August - Garden Grove, IA
  • Average rainfall in August: 1.93"

The wettest month (with the highest rainfall) is June (3.43").
The driest months (with the least rainfall) are January and December (0.67").

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Average rainfall days in August
Garden Grove, IA

Average rainfall days in August - Garden Grove, IA
  • Average rainfall days in August: 13.3 days

The month with the highest number of rainy days is June (17.3 days).
The month with the least rainy days is January (4.8 days).

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Average snowfall in August
Garden Grove, IA

Average snowfall in August - Garden Grove, IA
  • Average snowfall in August: 0"

The month with the highest snowfall is January (2.72").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in August
Garden Grove, IA

Average snowfall days in August - Garden Grove, IA
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (8.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in August /
Average sunshine in August
Garden Grove, IA

Average daylight in August / Average sunshine in August - Garden Grove, IA
  • Average daylight in August: 13h and 4min

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

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Average sunshine days in August
Garden Grove, IA

Average sunshine days in August - Garden Grove, IA
  • Average sunshine days in August: 13.8 days

The month with the most sunshine days is December (20.3 days).
The month with the least sunshine days is June (8.9 days).

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Average UV index in August
Garden Grove, IA

Average UV index in August - Garden Grove, 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).

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Average cloud cover in August
Garden Grove, IA

Average cloud cover in August - Garden Grove, IA
  • Average cloud cover in August: 29

The month with the most cloud cover is January (Cloud cover 51).
The month with the least cloud cover is July (Cloud cover 28).

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Average visibility in August
Garden Grove, IA

Average visibility in August - Garden Grove, 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).

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Garden Grove, Iowa, USA

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