August weather in Fennimore, WI
The average temperature in Fennimore in August is 71.2°F (59.3°F–83.1°F). Average precipitation: 4.07 inches.
August is a summer month in Fennimore, and is warmer than the annual average of 48.1°F. Daily temperatures swing about 23.8°F between overnight low and afternoon high. Expect about 14 days with precipitation. Daylight averages about 13h 46m. For travel, August is a comfortable month to visit.
Avg High
83.1°F
Avg Low
59.3°F
Precipitation
4.07 in
Daylight
13h 46m
August records in Fennimore
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 95.0°F (2001) | 52.0°F (2025) | 1.05 in (2001) |
| August 2 | 93.9°F (2011) | 50.0°F (2009) | 0.70 in (2001) |
| August 3 | 93.9°F (2012) | 50.0°F (2020) | 0.92 in (2004) |
| August 4 | 93.9°F (2006) | 48.9°F (2020) | 1.56 in (2007) |
| August 5 | 89.1°F (2008) | 50.0°F (2009) | 3.23 in (2024) |
| August 6 | 91.9°F (2011) | 50.0°F (2004) | 0.95 in (2018) |
| August 7 | 95.0°F (2001) | 50.0°F (2002) | 1.27 in (2022) |
| August 8 | 91.9°F (2001) | 53.1°F (1999) | 2.63 in (2010) |
| August 9 | 93.0°F (2001) | 52.0°F (2024) | 0.88 in (2010) |
| August 10 | 93.9°F (2021) | 50.0°F (2012) | 4.37 in (2025) |
| August 11 | 91.9°F (2002) | 45.0°F (2012) | 2.16 in (2005) |
| August 12 | 93.9°F (2010) | 48.9°F (2004) | 0.45 in (1999) |
| August 13 | 90.0°F (2015) | 45.0°F (2004) | 1.36 in (2002) |
| August 14 | 95.0°F (2015) | 46.0°F (2004) | 0.90 in (2007) |
| August 15 | 96.1°F (2015) | 46.0°F (2004) | 0.96 in (2007) |
| August 16 | 99.0°F (2003) | 46.9°F (2004) | 0.48 in (2009) |
| August 17 | 91.9°F (2003) | 46.9°F (2012) | 1.62 in (2000) |
| August 18 | 93.9°F (2003) | 43.0°F (2012) | 1.58 in (2005) |
| August 19 | 93.0°F (2003) | 39.9°F (2004) | 3.69 in (2007) |
| August 20 | 99.0°F (2003) | 44.1°F (2004) | 0.63 in (2009) |
| August 21 | 91.9°F (2003) | 39.0°F (2004) | 1.06 in (2002) |
| August 22 | 93.0°F (2014) | 46.0°F (2004) | 1.19 in (2013) |
| August 23 | 105.1°F (2023) | 48.9°F (2005) | 1.96 in (2016) |
| August 24 | 100.0°F (2023) | 48.9°F (2005) | 2.21 in (2022) |
| August 25 | 96.1°F (2003) | 46.9°F (2025) | 0.82 in (2001) |
| August 26 | 97.0°F (2020) | 46.9°F (2008) | 1.47 in (2012) |
| August 27 | 97.0°F (2020) | 46.9°F (2008) | 1.09 in (2007) |
| August 28 | 93.0°F (2007) | 50.0°F (2019) | 1.91 in (2015) |
| August 29 | 93.0°F (2010) | 46.9°F (2019) | 1.01 in (2024) |
| August 30 | 96.1°F (2013) | 44.1°F (2009) | 0.47 in (2011) |
| August 31 | 95.0°F (2000) | 45.0°F (2009) | 2.03 in (2010) |