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August Weather in Trail, United States

Last updated: June 24, 2025

In August, the average temperature in Trail, United States is a pleasant 20°C (69°F). However, temperatures can range from a chilly 6°C (43°F) to a scorching 39°C (102°F). Expect a bit of rain, with 7 mm (0.3 in) of precipitation likely over the course of 1 day, and enjoy a moderate humidity level of 67% for a comfortable atmosphere.

August Temperature in Trail

In August in Trail, the average temperature is 20°C (69°F). The maximum can reach 39°C (102°F) and the minimum can be as low as 6°C (43°F). Travelers should be prepared for a wide range of temperatures and pack accordingly.

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

The chart illustrates August temperature patterns in Trail, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Trail, August typically has an average temperature of 20°C (69°F), with highs reaching up to 39°C (102°F) and lows dropping to around 6°C (43°F).
JanFebMarAprMayJunJulAugSepOctNovDec373741475462696961504236
Data source: Temperature data for Trail 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 Trail

In Trail in August, the precipitation amount is 7 mm (0.3 in) over the course of 1 day.

August Precipitation Trends in Trail

The chart displays monthly precipitation patterns in Trail, 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 Trail, August typically receives around 7 mm (0.3 inches) of precipitation spread over approximately 1 days.
JanFebMarAprMayJunJulAugSepOctNovDec1461701201115931175472117133
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Trail

In Trail in August, humidity is 67%. With an average temperature of 20°C (69°F), this humidity feels like a warm, gentle embrace that clings to your skin, creating a comfortable yet slightly sticky atmosphere that can be refreshing while exploring the sights, provided you stay hydrated and take breaks in the shade.

August Average Humidity in Trail

This chart illustrates the average monthly humidity levels in Trail, 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 Trail is approximately 67%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%85%86%83%83%83%78%67%66%77%87%87%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Trail

In Trail 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 Trail.

Maximum UV Index Levels in Trail for August

The chart shows the monthly maximum UV Index (UVI) for Trail 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 Trail typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3478111110108642
Data source: Trail 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 Trail Compares to Other Months

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

This table compares monthly weather conditions in Trail, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather3°C (37°F)145 mm (5.7 inches)84%moderate
February Weather3°C (37°F)170 mm (6.7 inches)85%moderate
March Weather5°C (41°F)119 mm (4.7 inches)86%high
April Weather8°C (47°F)111 mm (4.4 inches)83%very high
May Weather12°C (54°F)59 mm (2.3 inches)83%extreme
June Weather17°C (62°F)31 mm (1.2 inches)83%extreme
July Weather21°C (70°F)1 mm (0.0 inches)78%very high
August Weather20°C (69°F)7 mm (0.3 inches)67%very high
September Weather16°C (61°F)54 mm (2.1 inches)66%very high
October Weather10°C (50°F)72 mm (2.8 inches)77%high
November Weather5°C (42°F)117 mm (4.6 inches)87%moderate
December Weather2°C (36°F)133 mm (5.2 inches)87%low

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