When to go · Grinnell
Grinnell, month by month
The best months for Grinnell: May, Jun, Jul, Aug, Sep, Oct. Months to avoid: Jan, Feb, Mar, Apr, Nov, Dec.
Month by month
- JanuaryAvoidListed as a month to avoid: Nov–Apr (cold, possible snow).32 °C (90 °F) / 14 °C (57 °F), 9 rain days90 °F (32 °C) / 57 °F (14 °C), 9 rain daysCrowds: Low
- FebruaryAvoidListed as a month to avoid: Nov–Apr (cold, possible snow).36 °C (97 °F) / 18 °C (64 °F), 9 rain days97 °F (36 °C) / 64 °F (18 °C), 9 rain daysCrowds: Low · 1 festival or holiday
- MarchAvoidListed as a month to avoid: Nov–Apr (cold, possible snow).53 °C (127 °F) / 33 °C (91 °F), 3 rain days127 °F (53 °C) / 91 °F (33 °C), 3 rain daysCrowds: Medium · 2 festivals or holidays
- AprilAvoidListed as a month to avoid: Nov–Apr (cold, possible snow).66 °C (151 °F) / 44 °C (111 °F), 1 rain days151 °F (66 °C) / 111 °F (44 °C), 1 rain daysCrowds: Medium · 1 festival or holiday
- MayGreatInside Grinnell's best window: May–Oct (warm, low rain).78 °C (172 °F) / 56 °C (133 °F), 0 rain days172 °F (78 °C) / 133 °F (56 °C), 0 rain daysCrowds: Medium · 1 festival or holiday
- JuneGreatInside Grinnell's best window: May–Oct (warm, low rain).86 °C (187 °F) / 64 °C (147 °F), 0 rain days187 °F (86 °C) / 147 °F (64 °C), 0 rain daysCrowds: High
- JulyGreatInside Grinnell's best window: May–Oct (warm, low rain).92 °C (198 °F) / 71 °C (160 °F), 0 rain days198 °F (92 °C) / 160 °F (71 °C), 0 rain daysCrowds: High · 1 festival or holiday
- AugustGreatInside Grinnell's best window: May–Oct (warm, low rain).90 °C (194 °F) / 70 °C (158 °F), 0 rain days194 °F (90 °C) / 158 °F (70 °C), 0 rain daysCrowds: High
- SeptemberGreatInside Grinnell's best window: May–Oct (warm, low rain).84 °C (183 °F) / 64 °C (147 °F), 0 rain days183 °F (84 °C) / 147 °F (64 °C), 0 rain daysCrowds: Medium · 1 festival or holiday
- OctoberGreatInside Grinnell's best window: May–Oct (warm, low rain).71 °C (160 °F) / 51 °C (124 °F), 1 rain days160 °F (71 °C) / 124 °F (51 °C), 1 rain daysCrowds: Medium
- NovemberAvoidListed as a month to avoid: Nov–Apr (cold, possible snow).58 °C (136 °F) / 38 °C (100 °F), 2 rain days136 °F (58 °C) / 100 °F (38 °C), 2 rain daysCrowds: Medium · 1 festival or holiday
- DecemberAvoidListed as a month to avoid: Nov–Apr (cold, possible snow).38 °C (100 °F) / 22 °C (72 °F), 7 rain days100 °F (38 °C) / 72 °F (22 °C), 7 rain daysCrowds: High · 1 festival or holiday
Compare two months
Weather, crowds and prices for any two months in Grinnell, side by side.
Verdict
May: Great
Jun: Great
Daytime high
May: 78 °C (172 °F)172 °F (78 °C)
Jun: 86 °C (187 °F)187 °F (86 °C)
Night low
May: 56 °C (133 °F)133 °F (56 °C)
Jun: 64 °C (147 °F)147 °F (64 °C)
Rain days
May: 0
Jun: 0
Crowds
May: Medium
Jun: High
Prices
May: Medium
Jun: High
Festivals listed
May: 1
Jun: 0
May: Inside Grinnell's best window: May–Oct (warm, low rain).
June: Inside Grinnell's best window: May–Oct (warm, low rain).
Grinnell: figures are long-term averages from this guide, not a forecast.