July Weather in Sioux Falls, United States

Last updated: June 24, 2025

In Sioux Falls, United States, the average temperature in July hovers around 24°C (75°F), making it a pleasant time to visit. Temperatures can dip as low as 11°C (52°F) or rise to a sizzling 37°C (98°F). Expect about 77 mm (3.0 in) of precipitation spread over 8 days, and prepare for a high level of humidity, with an average of 82%.

July Temperature in Sioux Falls

In July in Sioux Falls, the average temperature is 24°C (75°F). The maximum can reach 37°C (98°F), and the minimum can be as low as 11°C (52°F). Be prepared for warm days and cooler evenings, making it a great time to explore the area's attractions comfortably.

July Weather in Sioux Falls: Daily Temperature Highs, Lows, and Averages

The chart illustrates July temperature patterns in Sioux Falls, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sioux Falls, July typically has an average temperature of 24°C (75°F), with highs reaching up to 37°C (98°F) and lows dropping to around 11°C (52°F).

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

July Precipitation in Sioux Falls

In Sioux Falls in July, the precipitation amount is 77 mm (3.0 in) distributed over 8 days.

July Precipitation Trends in Sioux Falls

The chart displays monthly precipitation patterns in Sioux Falls, with values for each month alongside July’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how July’s conditions compare to those of other months. In Sioux Falls, July typically receives around 77 mm (3.0 inches) of precipitation spread over approximately 8 days.

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

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Millimeters (mm) Inches (in)

July Humidity in Sioux Falls

In Sioux Falls in July, humidity is 82%. With an average temperature of 24°C (75°F), this humidity feels like a warm embrace, making travel feel sticky and heavy on the skin, often requiring more frequent breaks and hydration.

July Average Humidity in Sioux Falls

This chart illustrates the average monthly humidity levels in Sioux Falls, with July’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In July, average humidity in Sioux Falls is approximately 82%, offering insight into how humid the weather typically is during this month.

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

July UV Index in Sioux Falls

In Sioux Falls in July, 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 Sioux Falls.

Maximum UV Index Levels in Sioux Falls for July

The chart shows the monthly maximum UV Index (UVI) for Sioux Falls in July, 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 July, the maximum UV index in Sioux Falls typically reaches 10, which falls under the very high exposure category.

Data source: Sioux Falls July 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 July Weather in Sioux Falls Compares to Other Months

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

This table compares monthly weather conditions in Sioux Falls, showing how July’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-7°C (20°F)	21 mm (0.8 inches)	80%	low
February Weather	-7°C (20°F)	24 mm (0.9 inches)	84%	moderate
March Weather	2°C (35°F)	65 mm (2.6 inches)	75%	moderate
April Weather	7°C (45°F)	82 mm (3.2 inches)	79%	very high
May Weather	15°C (59°F)	128 mm (5.0 inches)	74%	very high
June Weather	23°C (73°F)	85 mm (3.3 inches)	81%	extreme
July Weather	24°C (75°F)	77 mm (3.0 inches)	82%	very high
August Weather	22°C (72°F)	94 mm (3.7 inches)	80%	very high
September Weather	18°C (65°F)	107 mm (4.2 inches)	75%	very high
October Weather	9°C (48°F)	79 mm (3.1 inches)	77%	moderate
November Weather	1°C (35°F)	25 mm (1.0 inches)	85%	moderate
December Weather	-3°C (26°F)	39 mm (1.5 inches)	83%	low