August weather in Grinnell, KS
The average temperature in Grinnell in August is °F (°F–°F). Average precipitation: 3.05 inches.
August is a summer month in Grinnell, and is cooler than the annual average of 0°F. Expect about 8 days with precipitation. Daylight averages about 13h 32m.
Avg High
°F
Avg Low
°F
Precipitation
3.05 in
Daylight
13h 32m
August records in Grinnell
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | — | — | 0.95 in (2024) |
| August 2 | — | — | 0.58 in (2023) |
| August 3 | — | — | 0.38 in (2011) |
| August 4 | — | — | 0.82 in (2023) |
| August 5 | — | — | 1.59 in (2016) |
| August 6 | — | — | 0.93 in (2018) |
| August 7 | — | — | 1.09 in (2016) |
| August 8 | — | — | 1.35 in (2014) |
| August 9 | — | — | 0.35 in (2023) |
| August 10 | — | — | 0.39 in (2011) |
| August 11 | — | — | 4.26 in (2019) |
| August 12 | — | — | 1.78 in (2019) |
| August 13 | — | — | 0.92 in (2024) |
| August 14 | — | — | 0.61 in (2019) |
| August 15 | — | — | 0.37 in (2009) |
| August 16 | — | — | 0.78 in (2017) |
| August 17 | — | — | 0.85 in (2015) |
| August 18 | — | — | 0.42 in (2017) |
| August 19 | — | — | 1.12 in (2018) |
| August 20 | — | — | 0.44 in (2010) |
| August 21 | — | — | 0.00 in (2009) |
| August 22 | — | — | 0.19 in (2020) |
| August 23 | — | — | 0.82 in (2024) |
| August 24 | — | — | 3.69 in (2012) |
| August 25 | — | — | 0.79 in (2025) |
| August 26 | — | — | 1.18 in (2009) |
| August 27 | — | — | 1.05 in (2024) |
| August 28 | — | — | 0.78 in (2014) |
| August 29 | — | — | 0.33 in (2020) |
| August 30 | — | — | 0.18 in (2016) |
| August 31 | — | — | 0.67 in (2019) |