December weather in Port Sanilac, MI
The average temperature in Port Sanilac in December is 29.2°F (23.2°F–35.2°F). Average precipitation: 2.28 inches.
December is a winter month in Port Sanilac, and is cooler than the annual average of 46.5°F. Daily temperatures swing about 12°F between overnight low and afternoon high. Expect about 13 days with precipitation. Daylight averages about 8h 47m. For travel, December is cold.
Avg High
35.2°F
Avg Low
23.2°F
Precipitation
2.28 in
Daylight
8h 47m
December records in Port Sanilac
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 57.9°F (2001) | 12.9°F (2007) | 1.10 in (2001) |
| December 2 | 54.0°F (2012) | 16.0°F (2002) | 0.78 in (2006) |
| December 3 | 57.9°F (2018) | 12.0°F (2002) | 0.93 in (2009) |
| December 4 | 60.1°F (2012) | 7.0°F (2002) | 0.40 in (2023) |
| December 5 | 61.0°F (2001) | 6.1°F (2002) | 0.35 in (2011) |
| December 6 | 66.9°F (2001) | 9.0°F (2007) | 0.30 in (2021) |
| December 7 | 48.9°F (2001) | 10.0°F (2005) | 0.22 in (2016) |
| December 8 | 51.1°F (2004) | 9.0°F (2005) | 1.39 in (2004) |
| December 9 | 52.0°F (2023) | 5.0°F (2002) | 0.56 in (2005) |
| December 10 | 60.1°F (2023) | 6.1°F (2013) | 0.38 in (2025) |
| December 11 | 55.0°F (2021) | 6.1°F (2013) | 0.58 in (2004) |
| December 12 | 57.0°F (2021) | 3.9°F (2013) | 0.47 in (2016) |
| December 13 | 52.0°F (2020) | 6.1°F (2013) | 0.76 in (2010) |
| December 14 | 57.9°F (2015) | 1.0°F (2025) | 0.48 in (2017) |
| December 15 | 59.0°F (2015) | -6.0°F (2017) | 0.50 in (2001) |
| December 16 | 59.0°F (2011) | 3.9°F (2016) | 0.34 in (2005) |
| December 17 | 63.0°F (2021) | 1.9°F (2013) | 0.32 in (2016) |
| December 18 | 52.0°F (2006) | 10.9°F (2004) | 0.25 in (2023) |
| December 19 | 44.1°F (2002) | -0.9°F (2016) | 0.29 in (2021) |
| December 20 | 48.9°F (2002) | -0.9°F (2004) | 1.14 in (2008) |
| December 21 | 48.0°F (2006) | -0.9°F (2004) | 1.10 in (2002) |
| December 22 | 48.9°F (2015) | 7.0°F (2008) | 1.02 in (2013) |
| December 23 | 53.1°F (2006) | 6.1°F (2024) | 0.42 in (2023) |
| December 24 | 57.9°F (2015) | 1.9°F (2004) | 0.48 in (2015) |
| December 25 | 48.0°F (2015) | -4.0°F (2004) | 0.75 in (2014) |
| December 26 | 46.0°F (2019) | -2.9°F (2017) | 0.90 in (2009) |
| December 27 | 54.0°F (2016) | -8.0°F (2017) | 0.62 in (2012) |
| December 28 | 57.9°F (2008) | -2.9°F (2017) | 0.40 in (2008) |
| December 29 | 57.0°F (2024) | -2.0°F (2017) | 1.60 in (2025) |
| December 30 | 51.1°F (2022) | 3.9°F (2017) | 1.07 in (2024) |
| December 31 | 53.1°F (2022) | 3.0°F (2017) | 0.52 in (2022) |