December weather in Slinger, WI
The average temperature in Slinger in December is 23.3°F (15.8°F–30.8°F). Average precipitation: 1.96 inches.
December is a winter month in Slinger, and is cooler than the annual average of 44.4°F. Daily temperatures swing about 15°F between overnight low and afternoon high. Daylight averages about 8h 48m. For travel, December is cold.
Avg High
30.8°F
Avg Low
15.8°F
Precipitation
1.96 in
Daylight
8h 48m
December records in Slinger
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 48.0°F (2017) | 1.9°F (2025) | 0.73 in (2015) |
| December 2 | 52.0°F (2012) | 3.0°F (2014) | 0.93 in (2018) |
| December 3 | 50.0°F (2012) | 8.1°F (2010) | 0.27 in (2023) |
| December 4 | 63.0°F (2012) | -2.0°F (2025) | 0.73 in (2011) |
| December 5 | 60.1°F (2017) | -2.0°F (2025) | 0.31 in (2016) |
| December 6 | 46.9°F (2015) | 3.9°F (2013) | 0.16 in (2021) |
| December 7 | 43.0°F (2012) | -2.0°F (2013) | 0.10 in (2022) |
| December 8 | 50.0°F (2023) | -2.0°F (2013) | 0.13 in (2014) |
| December 9 | 54.0°F (2023) | 0.0°F (2010) | 0.23 in (2013) |
| December 10 | 52.0°F (2024) | -9.9°F (2013) | 0.54 in (2012) |
| December 11 | 54.0°F (2020) | 1.9°F (2013) | 0.98 in (2021) |
| December 12 | 44.1°F (2011) | -9.9°F (2013) | 1.25 in (2010) |
| December 13 | 52.0°F (2015) | -5.1°F (2024) | 0.27 in (2015) |
| December 14 | 59.0°F (2015) | -11.0°F (2010) | 1.39 in (2015) |
| December 15 | 54.0°F (2015) | -13.0°F (2010) | 0.93 in (2022) |
| December 16 | 63.0°F (2021) | -13.0°F (2010) | 0.60 in (2012) |
| December 17 | 48.0°F (2015) | -4.0°F (2013) | 0.32 in (2016) |
| December 18 | 43.0°F (2025) | -6.0°F (2016) | 0.29 in (2016) |
| December 19 | 46.9°F (2025) | -14.1°F (2016) | 0.26 in (2012) |
| December 20 | 43.0°F (2018) | -9.0°F (2016) | 0.92 in (2012) |
| December 21 | 46.9°F (2015) | -2.9°F (2022) | 1.41 in (2012) |
| December 22 | 44.1°F (2019) | -2.9°F (2022) | 0.27 in (2013) |
| December 23 | 50.0°F (2019) | -11.9°F (2022) | 0.61 in (2014) |
| December 24 | 54.0°F (2015) | -13.0°F (2013) | 0.44 in (2015) |
| December 25 | 50.0°F (2023) | -14.1°F (2013) | 0.09 in (2017) |
| December 26 | 53.1°F (2019) | -9.9°F (2017) | 0.61 in (2016) |
| December 27 | 52.0°F (2019) | -11.9°F (2017) | 0.41 in (2021) |
| December 28 | 48.0°F (2018) | -9.9°F (2017) | 0.60 in (2018) |
| December 29 | 48.9°F (2024) | -2.9°F (2017) | 1.35 in (2015) |
| December 30 | 55.0°F (2022) | -17.0°F (2013) | 0.44 in (2019) |
| December 31 | 48.0°F (2024) | -17.0°F (2013) | 0.36 in (2019) |