August weather in Rochester, WI
The average temperature in Rochester in August is 69.3°F (58.0°F–80.5°F). Average precipitation: 3.77 inches.
August is a summer month in Rochester, and is warmer than the annual average of 46.7°F. Daily temperatures swing about 22.5°F between overnight low and afternoon high. Daylight averages about 13h 45m. For travel, August is a comfortable month to visit.
Avg High
80.5°F
Avg Low
58.0°F
Precipitation
3.77 in
Daylight
13h 45m
August records in Rochester
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 90.0°F (2024) | 48.0°F (2019) | 0.80 in (2013) |
| August 2 | 88.0°F (2011) | 48.0°F (2019) | 0.84 in (2014) |
| August 3 | 93.0°F (2015) | 50.0°F (2019) | 1.18 in (2020) |
| August 4 | 91.0°F (2012) | 48.9°F (2020) | 0.58 in (2019) |
| August 5 | 93.9°F (2016) | 48.0°F (2020) | 0.75 in (2014) |
| August 6 | 88.0°F (2018) | 48.0°F (2020) | 1.10 in (2024) |
| August 7 | 93.0°F (2022) | 51.1°F (2020) | 1.45 in (2011) |
| August 8 | 91.0°F (2012) | 52.0°F (2012) | 0.75 in (2019) |
| August 9 | 90.0°F (2025) | 52.0°F (2024) | 0.25 in (2022) |
| August 10 | 95.0°F (2018) | 52.0°F (2019) | 1.75 in (2025) |
| August 11 | 91.0°F (2021) | 50.0°F (2011) | 2.95 in (2020) |
| August 12 | 89.1°F (2016) | 48.9°F (2022) | 0.50 in (2014) |
| August 13 | 86.0°F (2018) | 48.0°F (2017) | 0.46 in (2025) |
| August 14 | 84.9°F (2018) | 48.0°F (2013) | 1.11 in (2011) |
| August 15 | 91.0°F (2015) | 45.0°F (2014) | 4.05 in (2023) |
| August 16 | 88.0°F (2015) | 46.9°F (2014) | 1.00 in (2024) |
| August 17 | 86.0°F (2015) | 50.0°F (2013) | 0.83 in (2025) |
| August 18 | 87.1°F (2015) | 46.0°F (2012) | 1.15 in (2015) |
| August 19 | 88.0°F (2016) | 50.0°F (2012) | 0.80 in (2025) |
| August 20 | 86.0°F (2021) | 51.1°F (2020) | 0.80 in (2016) |
| August 21 | 89.1°F (2023) | 48.9°F (2012) | 0.58 in (2022) |
| August 22 | 87.1°F (2013) | 48.0°F (2024) | 0.37 in (2021) |
| August 23 | 86.0°F (2014) | 48.9°F (2012) | 0.56 in (2013) |
| August 24 | 95.0°F (2023) | 50.0°F (2017) | 0.35 in (2011) |
| August 25 | 95.0°F (2023) | 44.1°F (2017) | 2.18 in (2016) |
| August 26 | 91.0°F (2012) | 44.1°F (2017) | 0.29 in (2014) |
| August 27 | 91.9°F (2024) | 45.0°F (2015) | 1.20 in (2019) |
| August 28 | 91.9°F (2013) | 46.9°F (2015) | 0.25 in (2017) |
| August 29 | 91.0°F (2021) | 46.9°F (2025) | 1.32 in (2018) |
| August 30 | 93.0°F (2014) | 48.0°F (2023) | 0.11 in (2014) |
| August 31 | 93.0°F (2013) | 44.1°F (2023) | 0.68 in (2013) |