August weather forecast
Granville, IA

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Weather in August

August, the last month of the summer in Granville, is another warm month, with temperature in the range of an average high of 80.2°F (26.8°C) and an average low of 60.4°F (15.8°C).

Temperature

August's presence records an average high-temperature of a still warm 80.2°F (26.8°C), closely mirroring July's climate. In August, Granville encounters an average low-temperature of 60.4°F (15.8°C) during the night.

Humidity

The average relative humidity in August in Granville is 77%.

Rainfall

In August, the rain falls for 13.4 days. Throughout August, 2.28" (58mm) of precipitation is accumulated. In Granville, during the entire year, the rain falls for 124 days and collects up to 24.09" (612mm) of precipitation.

Snowfall

June through September are months without snowfall in Granville.

Daylight

In August, the average length of the day is 13h and 53min.
On the first day of August in Granville, sunrise is at 6:15 am and sunset at 8:44 pm. On the last day of the month, sunrise is at 6:47 am and sunset at 7:59 pm CDT.

Sunshine

The average sunshine in August is 9.6h.

UV index

In August, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: A maximum daily UV index of 5 during August morphs into the following directions:
Take necessary precautions - Protection from skin and eye injury is mandatory. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
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Frequently asked questions

What are the temperatures in Granville in August?

In August, the average high-temperature and low-temperature in Granville, Iowa, are 80.2°F (26.8°C) and 60.4°F (15.8°C) respectively. In July, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, is evaluated at 87.8°F (31°C).

What is the average humidity in August in Granville?

In Granville, Iowa, the average relative humidity in August is 77%.

How many days does it rain in August in Granville?

In Granville, in August, it is raining for 13.4 days, with typically 2.28" (58mm) of accumulated precipitation.

When it does not snow in Granville?

June through September are months without snowfall in Granville, Iowa.

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

The average day length in August in Granville is 13h and 53min.

When are sunrise and sunset in August in Granville?

In August, on the first day of the month, sunrise is at 6:15 am and sunset at 8:44 pm. On the last day of the month, sunrise is at 6:47 am and sunset at 7:59 pm CDT.

How many hours of sunshine does Granville have in August?

In August, the average sunshine duration is 9.6h.

What is the UV index reading in August in Granville?

In August, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium health risk 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
Granville, IA

Average temperature in August - Granville, IA
  • Average high temperature in August: 80.2°F

The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (24.6°F).

  • Average low temperature in August: 60.4°F

The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (11.3°F).

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Average pressure in August
Granville, IA

Average pressure in August - Granville, 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 (29.86"Hg).

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Average wind speed in August
Granville, IA

Average wind speed in August - Granville, IA
  • Average wind speed in August: 8.1mph

The windiest month (with the highest average wind speed) is April (11.3mph).
The calmest month (with the lowest average wind speed) is July (7.8mph).

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Average humidity in August
Granville, IA

Average humidity in August - Granville, IA
  • Average humidity in August: 77%

The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is October (67%).

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Average rainfall in August
Granville, IA

Average rainfall in August - Granville, IA
  • Average rainfall in August: 2.28"

The wettest month (with the highest rainfall) is June (3.82").
The driest month (with the least rainfall) is January (0.79").

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Average rainfall days in August
Granville, IA

Average rainfall days in August - Granville, IA
  • Average rainfall days in August: 13.4 days

The month with the highest number of rainy days is June (18 days).
The month with the least rainy days is February (2.8 days).

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Average snowfall in August
Granville, IA

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

The month with the highest snowfall is February (4.61").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in August
Granville, IA

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

The month with the highest number of snowfall days is January (12.1 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
Granville, IA

Average daylight in August / Average sunshine in August - Granville, IA
  • Average daylight in August: 13h and 5min

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in August: 9h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

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Average sunshine days in August
Granville, IA

Average sunshine days in August - Granville, IA
  • Average sunshine days in August: 14.3 days

The month with the most sunshine days is November (20.3 days).
The month with the least sunshine days is June (9.3 days).

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Average UV index in August
Granville, IA

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

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).

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Average cloud cover in August
Granville, IA

Average cloud cover in August - Granville, IA
  • Average cloud cover in August: 32

The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is July (Cloud cover 28).

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Average visibility in August
Granville, IA

Average visibility in August - Granville, 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).

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Granville, Iowa, USA

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