When to go · Rock Island
Rock Island, month by month
The best months for Rock Island: May, Jun, Sep, Oct. Months to avoid: Jan, Feb, Jul, Aug.
Month by month
- JanuaryAvoidListed as a month to avoid: Jan–Feb (cold, ice), late Jul–Aug humidity.0 °C (32 °F) / -9 °C (16 °F), 8 rain days32 °F (0 °C) / 16 °F (-9 °C), 8 rain daysCrowds: Low
- FebruaryAvoidListed as a month to avoid: Jan–Feb (cold, ice), late Jul–Aug humidity.3 °C (37 °F) / -7 °C (19 °F), 7 rain days37 °F (3 °C) / 19 °F (-7 °C), 7 rain daysCrowds: Low · 1 festival or holiday
- MarchGoodOutside the best window (May–Jun, Sep–Oct). Across United States: Spring break fills Florida beaches and parks; the desert parks come into season.10 °C (50 °F) / -1 °C (30 °F), 9 rain days50 °F (10 °C) / 30 °F (-1 °C), 9 rain daysCrowds: Medium · 2 festivals or holidays
- 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.17 °C (63 °F) / 5 °C (41 °F), 10 rain days63 °F (17 °C) / 41 °F (5 °C), 10 rain daysCrowds: Medium · 1 festival or holiday
- MayGreatInside Rock Island's best window: May–Jun, Sep–Oct.23 °C (73 °F) / 11 °C (52 °F), 11 rain days73 °F (23 °C) / 52 °F (11 °C), 11 rain daysCrowds: Medium · 1 festival or holiday
- JuneGreatInside Rock Island's best window: May–Jun, Sep–Oct.28 °C (82 °F) / 16 °C (61 °F), 10 rain days82 °F (28 °C) / 61 °F (16 °C), 10 rain daysCrowds: High
- JulyAvoidListed as a month to avoid: Jan–Feb (cold, ice), late Jul–Aug humidity.30 °C (86 °F) / 19 °C (66 °F), 9 rain days86 °F (30 °C) / 66 °F (19 °C), 9 rain daysCrowds: High · 1 festival or holiday
- AugustAvoidListed as a month to avoid: Jan–Feb (cold, ice), late Jul–Aug humidity.29 °C (84 °F) / 18 °C (64 °F), 8 rain days84 °F (29 °C) / 64 °F (18 °C), 8 rain daysCrowds: High
- SeptemberGreatInside Rock Island's best window: May–Jun, Sep–Oct.25 °C (77 °F) / 13 °C (55 °F), 8 rain days77 °F (25 °C) / 55 °F (13 °C), 8 rain daysCrowds: Medium · 1 festival or holiday
- OctoberGreatInside Rock Island's best window: May–Jun, Sep–Oct.18 °C (64 °F) / 7 °C (45 °F), 8 rain days64 °F (18 °C) / 45 °F (7 °C), 8 rain daysCrowds: Medium
- NovemberMixedOutside the best window (May–Jun, Sep–Oct). Across United States: Quiet between holidays; Thanksgiving week is the busiest travel period of the year.10 °C (50 °F) / 0 °C (32 °F), 8 rain days50 °F (10 °C) / 32 °F (0 °C), 8 rain daysCrowds: Medium · 1 festival or holiday
- 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.2 °C (36 °F) / -7 °C (19 °F), 8 rain days36 °F (2 °C) / 19 °F (-7 °C), 8 rain daysCrowds: High · 1 festival or holiday
Compare two months
Weather, crowds and prices for any two months in Rock Island, side by side.
Verdict
May: Great
Jun: Great
Daytime high
May: 23 °C (73 °F)73 °F (23 °C)
Jun: 28 °C (82 °F)82 °F (28 °C)
Night low
May: 11 °C (52 °F)52 °F (11 °C)
Jun: 16 °C (61 °F)61 °F (16 °C)
Rain days
May: 11
Jun: 10 (better)
Crowds
May: Medium
Jun: High
Prices
May: Medium
Jun: High
Festivals listed
May: 1
Jun: 0
May: Inside Rock Island's best window: May–Jun, Sep–Oct.
June: Inside Rock Island's best window: May–Jun, Sep–Oct.
Rock Island: figures are long-term averages from this guide, not a forecast.