August Weather in Granite Falls, United States

Last updated: June 24, 2025

In Granite Falls, United States, the average temperature in August is a pleasant 21°C (71°F). However, temperatures can vary widely, with minimums dipping to 8°C (47°F) and soaring to a maximum of 36°C (97°F). Expect an average precipitation amount of 125 mm (4.9 in) spread over 11 days, accompanied by an average humidity of 83%.

August Temperature in Granite Falls

In August in Granite Falls, the average temperature is 21°C (71°F). Maximum temperatures can reach 36°C (97°F), while minimum temperatures can drop as low as 8°C (47°F). This makes Granite Falls an ideal destination for travelers seeking a pleasant climate with warm days and cooler nights.

August Weather in Granite Falls: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Granite Falls, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Granite Falls, August typically has an average temperature of 21°C (71°F), with highs reaching up to 36°C (97°F) and lows dropping to around 8°C (47°F).

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

August Precipitation in Granite Falls

In Granite Falls in August, the precipitation amount is 125 mm (4.9 in) over the course of 11 days.

August Precipitation Trends in Granite Falls

The chart displays monthly precipitation patterns in Granite Falls, 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 Granite Falls, August typically receives around 125 mm (4.9 inches) of precipitation spread over approximately 11 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

August Humidity in Granite Falls

In Granite Falls in August humidity is 83%. With an average temperature of 21°C (71°F), this humidity feels like walking through a warm mist, making travel both refreshing and slightly uncomfortable as the air clings to your skin and you find yourself needing to take frequent breaks to hydrate.

August Average Humidity in Granite Falls

This chart illustrates the average monthly humidity levels in Granite Falls, 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 Granite Falls is approximately 83%, 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 Granite Falls

In Granite Falls 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 Granite Falls.

Maximum UV Index Levels in Granite Falls for August

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

Data source: Granite Falls 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 Granite Falls Compares to Other Months

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

This table compares monthly weather conditions in Granite Falls, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-9°C (16°F)	21 mm (0.8 inches)	85%	moderate
February Weather	-9°C (16°F)	23 mm (0.9 inches)	89%	moderate
March Weather	0°C (33°F)	57 mm (2.3 inches)	81%	moderate
April Weather	6°C (43°F)	76 mm (3.0 inches)	82%	high
May Weather	15°C (59°F)	110 mm (4.3 inches)	76%	very high
June Weather	22°C (72°F)	86 mm (3.4 inches)	81%	very high
July Weather	23°C (74°F)	108 mm (4.3 inches)	82%	very high
August Weather	21°C (71°F)	125 mm (4.9 inches)	83%	very high
September Weather	18°C (65°F)	107 mm (4.2 inches)	82%	high
October Weather	9°C (48°F)	93 mm (3.7 inches)	82%	moderate
November Weather	1°C (34°F)	27 mm (1.1 inches)	87%	moderate
December Weather	-5°C (24°F)	39 mm (1.6 inches)	84%	low