Last updated: June 24, 2025
In October, the average temperature in Sioux Falls, United States is a cool 9°C (48°F). Expect a wide range of temperatures, with a minimum of -12°C (11°F) and a maximum soaring to 29°C (85°F). This month also brings 79 mm (3.1 in) of precipitation over approximately 8 days, contributing to an average humidity level of 77%.
In October in Sioux Falls, the average temperature is 9°C (48°F), with maximums reaching 29°C (85°F) and minimums plummeting as low as -12°C (11°F). This weather variation suggests travelers should be prepared for both warm days and chilly nights.
In Sioux Falls in October, the precipitation amount is 79 mm (3.1 in) during 8 days, indicating a relatively wet period for the area.
In Sioux Falls in October, humidity is 77%. With an average temperature of 9°C (48°F), this humidity feels like a damp embrace, making traveling a bit more challenging as the cool air combines with the moisture, often leaving you with a chill that seeps into your bones.
In Sioux Falls in October, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Sioux Falls.
UV Risk Categories
Weather in Sioux Falls varies notably across the year, with each month offering distinct climate conditions. This page compares October’s weather to other months in Sioux Falls, focusing on differences in temperature, rainfall, humidity, and UV levels.
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 |