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August Weather in Summit, United States

Last updated: June 24, 2025

In Summit, United States during August, the average temperature reaches a comfortable 26°C (78°F), with a range that can dip to a cool 15°C (60°F) and soar up to a hot 37°C (99°F). Expect about 110 mm (4.3 in) of precipitation spread over 12 days, contributing to an average humidity of 68%. Embrace the climate as you explore the vibrant surroundings!

August Temperature in Summit

In August in Summit, the average temperature is 26°C (78°F), with maximums reaching 37°C (99°F) and minimums dropping to as low as 15°C (60°F). This makes it an ideal time for travelers who enjoy warm weather with a chance for cooler evenings.

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

The chart illustrates August temperature patterns in Summit, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Summit, August typically has an average temperature of 26°C (78°F), with highs reaching up to 37°C (99°F) and lows dropping to around 15°C (60°F).
JanFebMarAprMayJunJulAugSepOctNovDec384152576876807874614844
Data source: Temperature data for Summit 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 Summit

In Summit in August, the precipitation amount is 110 mm (4.3 in) over a span of 12 days.

August Precipitation Trends in Summit

The chart displays monthly precipitation patterns in Summit, 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 Summit, August typically receives around 110 mm (4.3 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec751021331401708467110561017181
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Summit

In Summit in August, humidity is 68%. With an average temperature of 26°C (78°F), this humidity feels like a warm, sticky embrace, making outdoor activities challenging but the lush greenery inviting.

August Average Humidity in Summit

This chart illustrates the average monthly humidity levels in Summit, 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 Summit is approximately 68%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec81%78%76%78%83%83%78%68%64%70%83%87%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Summit

In Summit in August, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Summit.

Maximum UV Index Levels in Summit for August

The chart shows the monthly maximum UV Index (UVI) for Summit 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 Summit typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec36710101111109753
Data source: Summit 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 Summit Compares to Other Months

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

This table compares monthly weather conditions in Summit, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather3°C (39°F)75 mm (3.0 inches)81%moderate
February Weather5°C (41°F)101 mm (4.0 inches)78%high
March Weather11°C (52°F)133 mm (5.2 inches)76%high
April Weather14°C (58°F)140 mm (5.5 inches)78%very high
May Weather20°C (68°F)170 mm (6.7 inches)83%very high
June Weather25°C (77°F)84 mm (3.3 inches)83%extreme
July Weather27°C (81°F)67 mm (2.6 inches)78%extreme
August Weather26°C (78°F)110 mm (4.3 inches)68%very high
September Weather23°C (75°F)56 mm (2.2 inches)64%very high
October Weather16°C (62°F)101 mm (4.0 inches)70%high
November Weather9°C (49°F)71 mm (2.8 inches)83%moderate
December Weather7°C (44°F)81 mm (3.2 inches)87%moderate

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