August weather forecast
Grant, IA

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Weather in August

August, the last month of the summer in Grant, is another warm month, with an average temperature fluctuating between 63°F (17.2°C) and 81.1°F (27.3°C).

Temperature

An average high-temperature of a still moderately hot 81.1°F (27.3°C) marks August, exhibiting a close resemblance to the conditions in July. Grant, during August, witnesses an average low-temperature of 63°F (17.2°C).

Heat index

The heat index in August is evaluated at a hot 86°F (30°C). If one continues to be active during enduring exposure, it could result in fatigue and heat cramps.
For clarity, heat index numbers account for light winds and areas under shade. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a single figure representing how weather conditions feel when combining temperature and humidity. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. Direct sun exposure is noteworthy in its ability to escalate the felt temperature, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are quite important 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 Grant, the average relative humidity in August is 79%.

Rainfall

In Grant, Iowa, in August, during 12.6 rainfall days, 2.2" (56mm) of precipitation is typically accumulated. In Grant, during the entire year, the rain falls for 115.1 days and collects up to 19.21" (488mm) of precipitation.

Snowfall

In Grant, snow does not fall in May through September.

Daylight

In August, the average length of the day is 13h and 46min.
On the first day of the month, sunrise is at 6:16 am and sunset at 8:36 pm. On the last day of August, in Grant, sunrise is at 6:46 am and sunset at 7:53 pm CDT.

Sunshine

The average sunshine in August in Grant, Iowa, is 9.7h.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for average individuals.
Note: A maximum UV index of 6 in August translates into the following recommendations:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
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Frequently asked questions

What is the usual temperature for Grant in August?

In Grant, in August, the average high-temperature is 81.1°F (27.3°C), and the average low-temperature is 63°F (17.2°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines relative humidity and air temperature, in August is evaluated at 86°F (30°C).

What is the average humidity in August in Grant?

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

How many days does it rain in August in Grant?

In Grant, Iowa, in August, it is raining for 12.6 days, with typically 2.2" (56mm) of accumulated precipitation.

When it does not snow in Grant?

In Grant, Iowa, snow does not fall in May through September.

How many hours of daylight does Grant have in August?

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

What time are sunrise and sunset in August in Grant?

In August, on the first day of the month, sunrise is at 6:16 am and sunset at 8:36 pm. On the last day of the month, in Grant, Iowa, sunrise is at 6:46 am and sunset at 7:53 pm CDT.

How long on average sun shines in August in Grant?

In August, the average sunshine duration in Grant, Iowa, is 9.7h.

What are the months with the highest UV index in Grant?

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

How high is the UV index in August in Grant?

In Grant, the average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability 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
Grant, IA

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

The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (29.3°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 (16°F).

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Average pressure in August
Grant, IA

Average pressure in August - Grant, 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).

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Average wind speed in August
Grant, IA

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

The windiest months (with the highest average wind speed) are March and April (10.5mph).
The calmest month (with the lowest average wind speed) is July (7mph).

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Average humidity in August
Grant, IA

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

The months with the highest relative humidity are January and June (81%).
The month with the lowest relative humidity is October (70%).

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Average rainfall in August
Grant, IA

Average rainfall in August - Grant, IA
  • Average rainfall in August: 2.2"

The wettest month (with the highest rainfall) is June (3.74").
The driest month (with the least rainfall) is February (0.51").

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Average rainfall days in August
Grant, IA

Average rainfall days in August - Grant, IA
  • Average rainfall days in August: 12.6 days

The month with the highest number of rainy days is May (16.5 days).
The month with the least rainy days is February (3 days).

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Average snowfall in August
Grant, IA

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

The month with the highest snowfall is January (2.28").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in August
Grant, IA

Average snowfall days in August - Grant, 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).

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

Average daylight in August / Average sunshine in August - Grant, 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 18min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).

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Average sunshine days in August
Grant, IA

Average sunshine days in August - Grant, IA
  • Average sunshine days in August: 16.3 days

The month with the most sunshine days is November (22.5 days).
The month with the least sunshine days is May (12 days).

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Average UV index in August
Grant, IA

Average UV index in August - Grant, 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
Grant, IA

Average cloud cover in August - Grant, IA
  • Average cloud cover in August: 31

The month with the most cloud cover is January (Cloud cover 52).
The months with the least cloud cover are July and September (Cloud cover 29).

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Average visibility in August
Grant, IA

Average visibility in August - Grant, 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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Grant, Iowa, USA

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