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August Weather in Westerville, United States

Last updated: June 24, 2025

In August, the average temperature in Westerville, United States is a pleasant 23°C (73°F). Expect a minimum of 10°C (51°F) and a peak temperature of 33°C (91°F). While enjoying the mild climate, anticipate 74 mm (2.9 in) of precipitation over 12 days, and experience an average humidity level of 78%.

August Temperature in Westerville

In August in Westerville, the average temperature is 23°C (73°F). The maximum can reach 33°C (91°F), while the minimum can drop to as low as 10°C (51°F). This pleasant climate makes Westerville a great destination for travelers seeking comfortable weather and diverse activities during this time of year.

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

The chart illustrates August temperature patterns in Westerville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Westerville, August typically has an average temperature of 23°C (73°F), with highs reaching up to 33°C (91°F) and lows dropping to around 10°C (51°F).
JanFebMarAprMayJunJulAugSepOctNovDec303342516371757368574136
Data source: Temperature data for Westerville 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 Westerville

In Westerville in August, the precipitation amount is 74 mm (2.9 in) over a span of 12 days.

August Precipitation Trends in Westerville

The chart displays monthly precipitation patterns in Westerville, 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 Westerville, August typically receives around 74 mm (2.9 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec781041051161241441117486999697
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Westerville

In Westerville in August, humidity is 78%. With an average temperature of 23°C (73°F), this humidity feels like a warm, sticky embrace, making outdoor activities a little challenging but still enjoyable for travelers who appreciate a tropical atmosphere.

August Average Humidity in Westerville

This chart illustrates the average monthly humidity levels in Westerville, 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 Westerville is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%87%87%88%81%82%81%78%78%82%89%86%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Westerville

In Westerville 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 Westerville.

Maximum UV Index Levels in Westerville for August

The chart shows the monthly maximum UV Index (UVI) for Westerville 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 Westerville typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910101098643
Data source: Westerville 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 Westerville Compares to Other Months

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

This table compares monthly weather conditions in Westerville, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (30°F)78 mm (3.1 inches)88%moderate
February Weather1°C (34°F)104 mm (4.1 inches)87%moderate
March Weather5°C (42°F)105 mm (4.1 inches)87%high
April Weather11°C (52°F)116 mm (4.6 inches)87%very high
May Weather17°C (63°F)124 mm (4.9 inches)81%very high
June Weather22°C (72°F)144 mm (5.7 inches)82%very high
July Weather24°C (76°F)111 mm (4.4 inches)81%very high
August Weather23°C (73°F)74 mm (2.9 inches)78%very high
September Weather20°C (69°F)86 mm (3.4 inches)78%very high
October Weather14°C (58°F)99 mm (3.9 inches)82%high
November Weather5°C (42°F)96 mm (3.8 inches)89%moderate
December Weather2°C (36°F)97 mm (3.8 inches)86%moderate

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