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When to go · Sioux Falls

Sioux Falls, month by month

The best months for Sioux Falls: May, Jun, Sep, Oct. Months to avoid: Jan, Feb, Jul, Aug.

Month by month

  1. JanuaryAvoidListed as a month to avoid: Jan–Feb (cold, wind), late Jul–Aug (heat and humidity).-3 °C / -13 °C, 6 rain daysCrowds: Low
  2. FebruaryAvoidListed as a month to avoid: Jan–Feb (cold, wind), late Jul–Aug (heat and humidity).0 °C / -11 °C, 6 rain daysCrowds: Low · 1 festival or holiday
  3. MarchGoodOutside the best window (May–Jun, Sep–Oct). Across United States: Spring break fills Florida beaches and parks; the desert parks come into season.7 °C / -5 °C, 8 rain daysCrowds: Medium · 2 festivals or holidays
  4. AprilGoodOutside the best window (May–Jun, Sep–Oct). Across United States: Good month for the Southwest, Washington cherry blossoms, the South; mountain roads still closed.15 °C / 2 °C, 9 rain daysCrowds: Medium · 1 festival or holiday
  5. MayGreatInside Sioux Falls's best window: May–Jun, Sep–Oct.21 °C / 8 °C, 11 rain daysCrowds: Medium · 1 festival or holiday
  6. JuneGreatInside Sioux Falls's best window: May–Jun, Sep–Oct.26 °C / 14 °C, 10 rain daysCrowds: High
  7. JulyAvoidListed as a month to avoid: Jan–Feb (cold, wind), late Jul–Aug (heat and humidity).29 °C / 17 °C, 9 rain daysCrowds: High · 1 festival or holiday
  8. AugustAvoidListed as a month to avoid: Jan–Feb (cold, wind), late Jul–Aug (heat and humidity).28 °C / 16 °C, 8 rain daysCrowds: High
  9. SeptemberGreatInside Sioux Falls's best window: May–Jun, Sep–Oct.24 °C / 11 °C, 8 rain daysCrowds: Medium · 1 festival or holiday
  10. OctoberGreatInside Sioux Falls's best window: May–Jun, Sep–Oct.16 °C / 4 °C, 7 rain daysCrowds: Medium
  11. NovemberMixedOutside the best window (May–Jun, Sep–Oct). Across United States: Quiet between holidays; Thanksgiving week is the busiest travel period of the year.7 °C / -3 °C, 6 rain daysCrowds: Medium · 1 festival or holiday
  12. DecemberMixedOutside the best window (May–Jun, Sep–Oct). Across United States: Holiday lights in New York, ski season opens; flights and hotels peak around Christmas and New Year.-1 °C / -10 °C, 6 rain daysCrowds: High · 1 festival or holiday