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August Weather in Ontonagon, United States

Last updated: June 24, 2025

In August, the average temperature in Ontonagon, United States hovers around 19°C (66°F), with a minimum of 4°C (39°F) and a maximum reaching 33°C (92°F). Expect about 111 mm (4.4 in) of precipitation spread over 12 days, contributing to an average humidity of 71%.

August Temperature in Ontonagon

In August in Ontonagon, the average temperature is 19°C (66°F). Maximums can reach 33°C (92°F), while minimums can drop as low as 4°C (39°F). Be sure to pack a mix of clothing to enjoy both warm days and cooler nights during your travels!

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

The chart illustrates August temperature patterns in Ontonagon, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ontonagon, August typically has an average temperature of 19°C (66°F), with highs reaching up to 33°C (92°F) and lows dropping to around 4°C (39°F).
JanFebMarAprMayJunJulAugSepOctNovDec181628385364696659463123
Data source: Temperature data for Ontonagon 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 Ontonagon

In Ontonagon, in August, the precipitation amount is 111 mm (4.4 in) over a span of 12 days.

August Precipitation Trends in Ontonagon

The chart displays monthly precipitation patterns in Ontonagon, 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 Ontonagon, August typically receives around 111 mm (4.4 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec44605482719077111921187278
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Ontonagon

In Ontonagon in August humidity is 71%. With an average temperature of 19°C (66°F), this humidity feels like a warm, balmy embrace that enhances the tropical atmosphere, making it a perfect backdrop for leisurely strolls and outdoor adventures, though it may also lead to a slightly sticky feeling as you explore.

August Average Humidity in Ontonagon

This chart illustrates the average monthly humidity levels in Ontonagon, 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 Ontonagon is approximately 71%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec92%92%88%86%78%74%70%71%74%81%86%90%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Ontonagon

In Ontonagon in August, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Ontonagon.

Maximum UV Index Levels in Ontonagon for August

The chart shows the monthly maximum UV Index (UVI) for Ontonagon 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 Ontonagon typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec245789987532
Data source: Ontonagon 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 Ontonagon Compares to Other Months

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

This table compares monthly weather conditions in Ontonagon, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-8°C (18°F)44 mm (1.7 inches)92%low
February Weather-9°C (17°F)60 mm (2.3 inches)92%moderate
March Weather-2°C (28°F)54 mm (2.1 inches)88%moderate
April Weather3°C (38°F)82 mm (3.2 inches)86%high
May Weather12°C (54°F)71 mm (2.8 inches)78%very high
June Weather18°C (64°F)90 mm (3.5 inches)74%very high
July Weather21°C (69°F)77 mm (3.0 inches)70%very high
August Weather19°C (66°F)111 mm (4.4 inches)71%very high
September Weather15°C (60°F)92 mm (3.6 inches)74%high
October Weather8°C (46°F)118 mm (4.6 inches)81%moderate
November Weather0°C (31°F)72 mm (2.8 inches)86%moderate
December Weather-5°C (24°F)78 mm (3.1 inches)90%low

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