August weather forecast
Zionsville, IN

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Weather in August

August, the last month of the summer in Zionsville, is another warm month, with an average temperature ranging between min 63.1°F (17.3°C) and max 80.4°F (26.9°C).

Temperature

With August's advent, Zionsville sees an average high-temperature of a still moderately hot 80.4°F (26.9°C), subtly shifted from July's 81.7°F (27.6°C). Zionsville observes an average nighttime low-temperature of 63.1°F (17.3°C) during the month of August.

Humidity

In Zionsville, the average relative humidity in August is 80%.

Rainfall

In Zionsville, during August, the rain falls for 10.9 days and regularly aggregates up to 0.91" (23mm) of precipitation. Throughout the year, there are 121.7 rainfall days, and 11.69" (297mm) of precipitation is accumulated.

Snowfall

May through September are months without snowfall.

Daylight

In Zionsville, Indiana, the average length of the day in August is 13h and 42min.
On the first day of the month, sunrise is at 6:44 am and sunset at 8:58 pm. On the last day of August, in Zionsville, sunrise is at 7:12 am and sunset at 8:17 pm EDT.

Sunshine

In Zionsville, Indiana, the average sunshine in August is 9.4h.

UV index

In August, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for average individuals.
Note: An average maximum UV index of 5 in August leads to these recommendations:
Exercise care. People with light skin might get burns in fewer than 30 minutes. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Opt for tightly woven and loose clothing to enhance protection from the Sun.
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Frequently asked questions

What are August temperatures in Zionsville?

The average high-temperature, in August, in Zionsville, is 80.4°F (26.9°C), while the average low-temperature is 63.1°F (17.3°C). In July, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines air temperature and relative humidity, is appraised at 87.8°F (31°C).

What is the average humidity in August in Zionsville?

The average relative humidity in August in Zionsville, Indiana, is 80%.

How many days does it rain in August in Zionsville?

In Zionsville, during August, the rain falls for 10.9 days and regularly aggregates up to 0.91" (23mm) of precipitation.

When it does not snow in Zionsville?

In Zionsville, Indiana, snow does not fall in May through September.

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

In August, the average day length in Zionsville, Indiana, is 13h and 42min.

When is the sunrise / sunset in August in Zionsville?

In August, on the first day of the month, sunrise is at 6:44 am and sunset at 8:58 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 8:17 pm EDT.

How many hours of sunshine does Zionsville have in August?

The average sunshine duration in August in Zionsville, Indiana, is 9.4h.

What is the UV index intensity in August in Zionsville?

In August, the average daily maximum UV index in Zionsville, Indiana, is 5. A UV Index of 3 to 5 symbolizes a moderate vulnerability 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
Zionsville, IN

Average temperature in August - Zionsville, IN
  • Average high temperature in August: 80.4°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 (32.2°F).

  • Average low temperature in August: 63.1°F

The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (20.3°F).

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Average pressure in August
Zionsville, IN

Average pressure in August - Zionsville, IN
  • Average pressure in August: 29.99"Hg

The months with the highest atmospheric pressure are January and November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in August
Zionsville, IN

Average wind speed in August - Zionsville, IN
  • Average wind speed in August: 6mph

The windiest months (with the highest average wind speed) are January and February (10.1mph).
The calmest month (with the lowest average wind speed) is August (6mph).

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Average humidity in August
Zionsville, IN

Average humidity in August - Zionsville, IN
  • Average humidity in August: 80%

The month with the highest relative humidity is December (83%).
The month with the lowest relative humidity is October (74%).

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Average rainfall in August
Zionsville, IN

Average rainfall in August - Zionsville, IN
  • Average rainfall in August: 0.91"

The wettest month (with the highest rainfall) is May (1.46").
The driest month (with the least rainfall) is February (0.67").

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Average rainfall days in August
Zionsville, IN

Average rainfall days in August - Zionsville, IN
  • Average rainfall days in August: 10.9 days

The month with the highest number of rainy days is May (15.5 days).
The month with the least rainy days is January (5.9 days).

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Average snowfall in August
Zionsville, IN

Average snowfall in August - Zionsville, IN
  • Average snowfall in August: 0"

The month with the highest snowfall is January (1.06").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in August
Zionsville, IN

Average snowfall days in August - Zionsville, IN
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (7.3 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
Zionsville, IN

Average daylight in August / Average sunshine in August - Zionsville, IN
  • Average daylight in August: 13h and 4min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in August: 9h and 2min

The months with the most sunshine are June and July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

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Average sunshine days in August
Zionsville, IN

Average sunshine days in August - Zionsville, IN
  • Average sunshine days in August: 15.8 days

The month with the most sunshine days is December (19.5 days).
The month with the least sunshine days is May (11.8 days).

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Average UV index in August
Zionsville, IN

Average UV index in August - Zionsville, IN
  • Average UV index in August: 5

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

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Average cloud cover in August
Zionsville, IN

Average cloud cover in August - Zionsville, IN
  • Average cloud cover in August: 31

The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 31).

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Average visibility in August
Zionsville, IN

Average visibility in August - Zionsville, IN
  • 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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Zionsville, Indiana, USA

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