August weather in Plymouth, IN
The average temperature in Plymouth in August is 71.5°F (61.0°F–81.9°F). Average precipitation: 4.05 inches.
August is a summer month in Plymouth, and is warmer than the annual average of 50°F. Daily temperatures swing about 20.9°F between overnight low and afternoon high. Expect about 10 days with precipitation. Daylight averages about 13h 40m. For travel, August is a comfortable month to visit.
Avg High
81.9°F
Avg Low
61.0°F
Precipitation
4.05 in
Daylight
13h 40m
August records in Plymouth
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 93.9°F (1995) | 50.0°F (1990) | 0.95 in (1999) |
| August 2 | 97.0°F (1991) | 52.0°F (1990) | 1.21 in (2020) |
| August 3 | 93.0°F (1991) | 53.1°F (2014) | 2.16 in (1995) |
| August 4 | 91.9°F (2012) | 53.1°F (2013) | 1.41 in (1998) |
| August 5 | 91.9°F (2002) | 48.9°F (1993) | 2.36 in (2008) |
| August 6 | 91.9°F (2019) | 48.0°F (1994) | 2.15 in (2023) |
| August 7 | 91.9°F (1996) | 46.9°F (2002) | 1.61 in (2021) |
| August 8 | 93.0°F (2007) | 50.0°F (1990) | 0.69 in (2013) |
| August 9 | 95.0°F (2001) | 51.1°F (2017) | 1.33 in (1994) |
| August 10 | 93.0°F (2009) | 51.1°F (1994) | 1.30 in (2018) |
| August 11 | 93.0°F (2016) | 51.1°F (2008) | 1.23 in (2006) |
| August 12 | 93.0°F (2016) | 48.0°F (2004) | 2.02 in (2021) |
| August 13 | 93.0°F (1995) | 46.0°F (2017) | 1.37 in (1990) |
| August 14 | 93.9°F (1995) | 46.0°F (2004) | 1.43 in (2012) |
| August 15 | 93.0°F (1995) | 42.1°F (2014) | 0.62 in (2015) |
| August 16 | 91.9°F (2000) | 44.1°F (2014) | 3.58 in (2016) |
| August 17 | 93.0°F (1995) | 48.9°F (2004) | 1.04 in (1997) |
| August 18 | 88.0°F (1995) | 46.0°F (2012) | 5.30 in (1990) |
| August 19 | 89.1°F (1993) | 45.0°F (2012) | 2.12 in (2025) |
| August 20 | 89.1°F (2010) | 48.0°F (1992) | 1.47 in (2007) |
| August 21 | 90.0°F (2010) | 48.0°F (2024) | 2.35 in (2007) |
| August 22 | 93.9°F (2003) | 46.9°F (2024) | 1.06 in (1998) |
| August 23 | 91.0°F (2007) | 48.9°F (2024) | 0.55 in (2017) |
| August 24 | 93.9°F (2023) | 46.0°F (2017) | 0.87 in (2007) |
| August 25 | 95.0°F (2023) | 46.9°F (2017) | 1.48 in (1999) |
| August 26 | 93.0°F (2003) | 46.0°F (2017) | 0.93 in (2004) |
| August 27 | 91.9°F (1993) | 46.9°F (2017) | 1.72 in (2012) |
| August 28 | 95.0°F (2024) | 46.9°F (2015) | 1.85 in (2004) |
| August 29 | 91.9°F (2003) | 46.9°F (1992) | 1.63 in (2006) |
| August 30 | 91.9°F (2010) | 51.1°F (2009) | 2.14 in (1993) |
| August 31 | 91.9°F (1995) | 43.0°F (2009) | 0.46 in (2024) |