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When to go · Quincy, Illinois

Quincy, Illinois, month by month

The best months for Quincy, Illinois: Apr, May, Jun, Sep, Oct. Months to avoid: Jan, Feb, Jul, Aug.

Month by month

  1. JanuaryAvoidListed as a month to avoid: Jan–Feb (cold, ice), Jul–Aug (heat and humidity).2 °C (36 °F) / -8 °C (18 °F), 7 rain daysCrowds: Low
  2. FebruaryAvoidListed as a month to avoid: Jan–Feb (cold, ice), Jul–Aug (heat and humidity).5 °C (41 °F) / -6 °C (21 °F), 7 rain daysCrowds: Low · 1 festival or holiday
  3. MarchGoodOutside the best window (Apr–Jun, Sep–Oct). Across United States: Spring break fills Florida beaches and parks; the desert parks come into season.12 °C (54 °F) / 0 °C (32 °F), 9 rain daysCrowds: Medium · 2 festivals or holidays
  4. AprilGreatInside Quincy, Illinois's best window: Apr–Jun, Sep–Oct.18 °C (64 °F) / 6 °C (43 °F), 10 rain daysCrowds: Medium · 1 festival or holiday
  5. MayGreatInside Quincy, Illinois's best window: Apr–Jun, Sep–Oct.24 °C (75 °F) / 12 °C (54 °F), 11 rain daysCrowds: Medium · 1 festival or holiday
  6. JuneGreatInside Quincy, Illinois's best window: Apr–Jun, Sep–Oct.29 °C (84 °F) / 17 °C (63 °F), 9 rain daysCrowds: High
  7. JulyAvoidListed as a month to avoid: Jan–Feb (cold, ice), Jul–Aug (heat and humidity).31 °C (88 °F) / 20 °C (68 °F), 8 rain daysCrowds: High · 1 festival or holiday
  8. AugustAvoidListed as a month to avoid: Jan–Feb (cold, ice), Jul–Aug (heat and humidity).30 °C (86 °F) / 19 °C (66 °F), 8 rain daysCrowds: High
  9. SeptemberGreatInside Quincy, Illinois's best window: Apr–Jun, Sep–Oct.26 °C (79 °F) / 14 °C (57 °F), 8 rain daysCrowds: Medium · 1 festival or holiday
  10. OctoberGreatInside Quincy, Illinois's best window: Apr–Jun, Sep–Oct.19 °C (66 °F) / 7 °C (45 °F), 8 rain daysCrowds: Medium
  11. NovemberMixedOutside the best window (Apr–Jun, Sep–Oct). Across United States: Quiet between holidays; Thanksgiving week is the busiest travel period of the year.11 °C (52 °F) / 1 °C (34 °F), 8 rain daysCrowds: Medium · 1 festival or holiday
  12. DecemberMixedOutside the best window (Apr–Jun, Sep–Oct). Across United States: Holiday lights in New York, ski season opens; flights and hotels peak around Christmas and New Year.4 °C (39 °F) / -5 °C (23 °F), 8 rain daysCrowds: High · 1 festival or holiday

Compare two months

Weather, crowds and prices for any two months in Quincy, Illinois, side by side.

  • Verdict

    Apr: Great

    May: Great

  • Daytime high

    Apr: 18 °C (64 °F)

    May: 24 °C (75 °F)

  • Night low

    Apr: 6 °C (43 °F)

    May: 12 °C (54 °F)

  • Rain days

    Apr: 10 (better)

    May: 11

  • Crowds

    Apr: Medium

    May: Medium

  • Prices

    Apr: Medium

    May: Medium

  • Festivals listed

    Apr: 1

    May: 1

April: Inside Quincy, Illinois's best window: Apr–Jun, Sep–Oct.

May: Inside Quincy, Illinois's best window: Apr–Jun, Sep–Oct.

Quincy, Illinois: figures are long-term averages from this guide, not a forecast.