nomadseason

August Weather in Glen Ullin, United States

Last updated: June 24, 2025

In August, the average temperature in Glen Ullin, United States hovers around 21°C (70°F). Expect a range from a brisk 6°C (44°F) to a toasty 38°C (101°F). During the month, you'll encounter 72 mm (2.8 in) of precipitation spread over 8 days, contributing to an average humidity of 78%.

August Temperature in Glen Ullin

In August in Glen Ullin, the average temperature is 21°C (70°F). Maximums can reach 38°C (101°F), while minimums can drop to 6°C (44°F). This makes it an ideal time for travelers to enjoy a variety of outdoor activities, so pack accordingly!

August Weather in Glen Ullin: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Glen Ullin, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Glen Ullin, August typically has an average temperature of 21°C (70°F), with highs reaching up to 38°C (101°F) and lows dropping to around 6°C (44°F).
JanFebMarAprMayJunJulAugSepOctNovDec171430405568736960433123
Data source: Temperature data for Glen Ullin generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

August Precipitation in Glen Ullin

In Glen Ullin in August, the precipitation amount is 72 mm (2.8 in) over the course of 8 days.

August Precipitation Trends in Glen Ullin

The chart displays monthly precipitation patterns in Glen Ullin, 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 Glen Ullin, August typically receives around 72 mm (2.8 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec121625286154617252511720
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

August Humidity in Glen Ullin

In Glen Ullin in August, humidity is 78%. With an average temperature of 21°C (70°F), this humidity feels like a warm, enveloping blanket that can leave travelers feeling sticky and slightly fatigued, making it important to stay hydrated and take frequent breaks from outdoor activities.

August Average Humidity in Glen Ullin

This chart illustrates the average monthly humidity levels in Glen Ullin, 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 Glen Ullin is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%88%78%75%76%79%78%78%69%71%82%84%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Glen Ullin

In Glen Ullin 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 Glen Ullin.

Maximum UV Index Levels in Glen Ullin for August

The chart shows the monthly maximum UV Index (UVI) for Glen Ullin 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 Glen Ullin typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2459810997532
Data source: Glen Ullin 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 Glen Ullin Compares to Other Months

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

This table compares monthly weather conditions in Glen Ullin, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-8°C (17°F)12 mm (0.5 inches)84%low
February Weather-10°C (14°F)16 mm (0.6 inches)88%moderate
March Weather-1°C (31°F)25 mm (1.0 inches)78%moderate
April Weather4°C (40°F)28 mm (1.1 inches)75%very high
May Weather13°C (55°F)61 mm (2.4 inches)76%very high
June Weather20°C (68°F)54 mm (2.1 inches)79%very high
July Weather23°C (73°F)61 mm (2.4 inches)78%very high
August Weather21°C (70°F)72 mm (2.8 inches)78%very high
September Weather16°C (60°F)51 mm (2.0 inches)69%high
October Weather6°C (43°F)51 mm (2.0 inches)71%moderate
November Weather-1°C (31°F)17 mm (0.7 inches)82%moderate
December Weather-5°C (23°F)20 mm (0.8 inches)84%low

Compare Glen Ullin's Climate with Cities Worldwide