August Weather in Grantsville, United States

Last updated: June 24, 2025

In Grantsville, United States, the average temperature in August hovers around 23°C (74°F). During this time, you might experience a refreshing minimum of 13°C (55°F) and a warm maximum of 34°C (93°F). Expect about 120 mm (4.7 in) of precipitation spread over 15 days, accompanied by an average humidity level of 73%.

August Temperature in Grantsville

In August in Grantsville, the average temperature is 23°C (74°F). Maximum temperatures can reach 34°C (93°F), while minimums can drop to as low as 13°C (55°F). This pleasant climate makes Grantsville an ideal destination for travelers seeking a comfortable and enjoyable experience during their visit.

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

The chart illustrates August temperature patterns in Grantsville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Grantsville, August typically has an average temperature of 23°C (74°F), with highs reaching up to 34°C (93°F) and lows dropping to around 13°C (55°F).

Data source: Temperature data for Grantsville generated using information from the Copernicus Climate Change Service.

August Precipitation in Grantsville

In Grantsville in August, the precipitation amount is 120 mm (4.7 in) spread over 15 days.

August Precipitation Trends in Grantsville

The chart displays monthly precipitation patterns in Grantsville, 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 Grantsville, August typically receives around 120 mm (4.7 inches) of precipitation spread over approximately 15 days.

Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

August Humidity in Grantsville

In Grantsville in August, humidity is 73%. With an average temperature of 23°C (74°F), this humidity feels like a warm, enveloping blanket, making traveling a bit sweaty and heavy, but still pleasant if you stay hydrated and take breaks in the shade.

August Average Humidity in Grantsville

This chart illustrates the average monthly humidity levels in Grantsville, 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 Grantsville is approximately 73%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Grantsville

In Grantsville 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 Grantsville.

Maximum UV Index Levels in Grantsville for August

The chart shows the monthly maximum UV Index (UVI) for Grantsville 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 Grantsville typically reaches 9, which falls under the very high exposure category.

Data source: Grantsville 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 Grantsville Compares to Other Months

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

This table compares monthly weather conditions in Grantsville, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	2°C (35°F)	98 mm (3.9 inches)	88%	moderate
February Weather	4°C (40°F)	142 mm (5.6 inches)	88%	moderate
March Weather	8°C (46°F)	115 mm (4.5 inches)	88%	high
April Weather	13°C (55°F)	142 mm (5.6 inches)	86%	very high
May Weather	18°C (65°F)	160 mm (6.3 inches)	82%	very high
June Weather	22°C (72°F)	172 mm (6.8 inches)	84%	very high
July Weather	24°C (76°F)	129 mm (5.1 inches)	82%	very high
August Weather	23°C (74°F)	120 mm (4.7 inches)	73%	very high
September Weather	21°C (70°F)	106 mm (4.2 inches)	73%	very high
October Weather	15°C (60°F)	116 mm (4.6 inches)	81%	high
November Weather	7°C (45°F)	81 mm (3.2 inches)	89%	moderate
December Weather	4°C (40°F)	122 mm (4.8 inches)	86%	moderate