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August Weather in Zionsville, United States

Last updated: June 24, 2025

In August, the average temperature in Zionsville, United States is a pleasant 23°C (74°F). Expect a minimum of 11°C (52°F) and a peak of 35°C (95°F). With an average humidity of 70%, your stay will feel comfortable, though don’t forget your umbrella, as you can expect about 94 mm (3.7 in) of precipitation over 12 days. Enjoy your visit!

August Temperature in Zionsville

In August in Zionsville, the average temperature is 23°C (74°F). Maximums can reach 35°C (95°F), while minimums can be as low as 11°C (52°F). This makes it an ideal time for travelers to enjoy a warm climate while still being prepared for cooler evenings.

August Weather in Zionsville: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Zionsville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Zionsville, August typically has an average temperature of 23°C (74°F), with highs reaching up to 35°C (95°F) and lows dropping to around 11°C (52°F).
JanFebMarAprMayJunJulAugSepOctNovDec293342526473767469574135
Data source: Temperature data for Zionsville generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

August Precipitation in Zionsville

In Zionsville in August, the precipitation amount is 94 mm (3.7 in) spread over 12 days.

August Precipitation Trends in Zionsville

The chart displays monthly precipitation patterns in Zionsville, with values for each month alongside August’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August’s conditions compare to those of other months. In Zionsville, August typically receives around 94 mm (3.7 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec81891209314310510894761058774
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Zionsville

In Zionsville in August humidity is 70%. With an average temperature of 23°C (74°F), this humidity feels like a warm, sticky embrace, making outdoor activities somewhat challenging but still bearable for traveling.

August Average Humidity in Zionsville

This chart illustrates the average monthly humidity levels in Zionsville, with August’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In August, average humidity in Zionsville is approximately 70%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%85%86%84%79%82%79%70%69%76%88%87%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Zionsville

In Zionsville in August, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Zionsville.

Maximum UV Index Levels in Zionsville for August

The chart shows the monthly maximum UV Index (UVI) for Zionsville in August, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In August, the maximum UV index in Zionsville typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910111098642
Data source: Zionsville August UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How August Weather in Zionsville Compares to Other Months

Weather in Zionsville varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Zionsville, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Zionsville, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (30°F)81 mm (3.2 inches)87%moderate
February Weather0°C (33°F)88 mm (3.5 inches)85%moderate
March Weather6°C (42°F)120 mm (4.7 inches)86%high
April Weather11°C (52°F)93 mm (3.7 inches)84%very high
May Weather18°C (64°F)143 mm (5.6 inches)79%very high
June Weather23°C (74°F)104 mm (4.1 inches)82%extreme
July Weather25°C (77°F)108 mm (4.2 inches)79%very high
August Weather23°C (74°F)94 mm (3.7 inches)70%very high
September Weather21°C (70°F)76 mm (3.0 inches)69%very high
October Weather14°C (58°F)105 mm (4.1 inches)76%high
November Weather5°C (42°F)87 mm (3.4 inches)88%moderate
December Weather2°C (36°F)74 mm (2.9 inches)87%low

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