October weather in Merrimac, WI
The average temperature in Merrimac in October is 50.1°F (39.0°F–61.1°F). Average precipitation: 2.97 inches.
October is a fall month in Merrimac, and is warmer than the annual average of 47.1°F. Daily temperatures swing about 22.1°F between overnight low and afternoon high. Expect about 10 days with precipitation. Daylight averages about 10h 46m. For travel, October is a comfortable month to visit.
Avg High
61.1°F
Avg Low
39.0°F
Precipitation
2.97 in
Daylight
10h 46m
October records in Merrimac
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| October 1 | 88.0°F (2019) | 30.9°F (2011) | 0.77 in (2007) |
| October 2 | 89.1°F (2023) | 30.0°F (2011) | 3.30 in (2019) |
| October 3 | 84.9°F (2006) | 30.0°F (2010) | 0.91 in (2007) |
| October 4 | 90.0°F (2025) | 28.9°F (2008) | 0.55 in (2017) |
| October 5 | 88.0°F (2005) | 28.9°F (2008) | 0.27 in (2013) |
| October 6 | 86.0°F (2005) | 30.9°F (2010) | 0.79 in (2018) |
| October 7 | 88.0°F (2007) | 33.1°F (2006) | 0.36 in (2017) |
| October 8 | 87.1°F (2007) | 28.0°F (2012) | 0.97 in (2018) |
| October 9 | 82.9°F (2011) | 28.0°F (2022) | 0.25 in (2018) |
| October 10 | 84.9°F (2010) | 26.1°F (2009) | 0.27 in (2018) |
| October 11 | 84.0°F (2010) | 21.9°F (2009) | 0.36 in (2018) |
| October 12 | 82.0°F (2024) | 21.0°F (2009) | 0.69 in (2021) |
| October 13 | 84.9°F (2008) | 21.9°F (2012) | 0.68 in (2023) |
| October 14 | 73.9°F (2008) | 30.0°F (2009) | 1.47 in (2014) |
| October 15 | 75.9°F (2005) | 23.0°F (2006) | 1.40 in (2012) |
| October 16 | 66.9°F (2016) | 26.1°F (2006) | 0.58 in (2007) |
| October 17 | 75.0°F (2016) | 24.1°F (2015) | 0.35 in (2006) |
| October 18 | 79.0°F (2025) | 25.0°F (2009) | 1.25 in (2007) |
| October 19 | 77.0°F (2005) | 25.0°F (2015) | 0.28 in (2025) |
| October 20 | 75.0°F (2015) | 27.0°F (2006) | 0.21 in (2019) |
| October 21 | 80.1°F (2024) | 21.9°F (2018) | 0.20 in (2009) |
| October 22 | 82.0°F (2024) | 24.1°F (2013) | 0.72 in (2019) |
| October 23 | 78.1°F (2022) | 23.0°F (2013) | 4.66 in (2020) |
| October 24 | 75.0°F (2022) | 23.0°F (2013) | 0.56 in (2009) |
| October 25 | 80.1°F (2023) | 21.9°F (2006) | 0.32 in (2021) |
| October 26 | 71.1°F (2012) | 23.0°F (2006) | 2.15 in (2016) |
| October 27 | 66.0°F (2023) | 25.0°F (2005) | 0.57 in (2016) |
| October 28 | 75.0°F (2014) | 23.0°F (2012) | 1.51 in (2015) |
| October 29 | 70.0°F (2024) | 21.9°F (2012) | 0.32 in (2019) |
| October 30 | 82.9°F (2024) | 21.0°F (2012) | 1.14 in (2009) |
| October 31 | 77.0°F (2024) | 24.1°F (2019) | 2.95 in (2024) |