August weather in Manhattan, IL
The average temperature in Manhattan in August is °F (°F–°F). Average precipitation: 4.20 inches.
August is a summer month in Manhattan, and is cooler than the annual average of 0°F. Daylight averages about 13h 40m.
Avg High
°F
Avg Low
°F
Precipitation
4.20 in
Daylight
13h 40m
August records in Manhattan
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | — | — | 0.21 in (2010) |
| August 2 | — | — | 0.55 in (2024) |
| August 3 | — | — | 3.54 in (2010) |
| August 4 | — | — | 0.90 in (2010) |
| August 5 | — | — | 1.54 in (2008) |
| August 6 | — | — | 1.02 in (2023) |
| August 7 | — | — | 0.55 in (2007) |
| August 8 | — | — | 1.61 in (2007) |
| August 9 | — | — | 1.11 in (2011) |
| August 10 | — | — | 0.49 in (2008) |
| August 11 | — | — | 0.58 in (2014) |
| August 12 | — | — | 0.39 in (2021) |
| August 13 | — | — | 1.72 in (2016) |
| August 14 | — | — | 0.66 in (2012) |
| August 15 | — | — | 0.95 in (2023) |
| August 16 | — | — | 1.20 in (2016) |
| August 17 | — | — | 1.96 in (2025) |
| August 18 | — | — | 1.07 in (2015) |
| August 19 | — | — | 1.49 in (2019) |
| August 20 | — | — | 1.54 in (2007) |
| August 21 | — | — | 2.79 in (2018) |
| August 22 | — | — | 1.27 in (2014) |
| August 23 | — | — | 1.05 in (2007) |
| August 24 | — | — | 3.14 in (2007) |
| August 25 | — | — | 0.78 in (2021) |
| August 26 | — | — | 0.98 in (2021) |
| August 27 | — | — | 1.05 in (2012) |
| August 28 | — | — | 2.64 in (2024) |
| August 29 | — | — | 0.93 in (2018) |
| August 30 | — | — | 0.54 in (2021) |
| August 31 | — | — | 0.31 in (2013) |