December weather in Hartford, SD
The average temperature in Hartford in December is 21.5°F (12.5°F–30.4°F). Average precipitation: 0.84 inches.
December is a winter month in Hartford, and is cooler than the annual average of 46.6°F. Daily temperatures swing about 17.9°F between overnight low and afternoon high. Daylight averages about 8h 46m. For travel, December is cold.
Avg High
30.4°F
Avg Low
12.5°F
Precipitation
0.84 in
Daylight
8h 46m
December records in Hartford
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 57.9°F (2021) | -0.9°F (2014) | 0.24 in (2018) |
| December 2 | 60.1°F (2012) | 1.9°F (2025) | 0.04 in (2018) |
| December 3 | 55.9°F (2012) | -4.0°F (2025) | 0.02 in (2011) |
| December 4 | 48.9°F (2017) | -6.0°F (2025) | 0.31 in (2013) |
| December 5 | 52.0°F (2012) | 3.0°F (2011) | 0.32 in (2013) |
| December 6 | 55.0°F (2023) | -2.0°F (2011) | 0.26 in (2025) |
| December 7 | 59.0°F (2023) | 1.9°F (2017) | 0.07 in (2012) |
| December 8 | 53.1°F (2024) | 3.9°F (2016) | 0.62 in (2022) |
| December 9 | 57.0°F (2020) | -2.0°F (2016) | 0.08 in (2012) |
| December 10 | 50.0°F (2015) | -7.1°F (2012) | 0.74 in (2021) |
| December 11 | 46.0°F (2023) | -2.9°F (2016) | 0.08 in (2013) |
| December 12 | 46.9°F (2014) | -6.0°F (2016) | 0.15 in (2022) |
| December 13 | 52.0°F (2014) | -5.1°F (2016) | 0.82 in (2022) |
| December 14 | 55.0°F (2014) | -9.9°F (2025) | 0.15 in (2011) |
| December 15 | 53.1°F (2021) | -8.0°F (2016) | 0.76 in (2014) |
| December 16 | 48.9°F (2018) | 5.0°F (2014) | 0.27 in (2015) |
| December 17 | 46.9°F (2018) | -18.9°F (2016) | 0.07 in (2012) |
| December 18 | 53.1°F (2011) | -25.1°F (2016) | 0.17 in (2012) |
| December 19 | 46.0°F (2018) | -2.9°F (2022) | 0.06 in (2024) |
| December 20 | 43.0°F (2020) | -8.0°F (2022) | 0.00 in (2011) |
| December 21 | 46.0°F (2023) | -9.9°F (2022) | 0.24 in (2017) |
| December 22 | 57.0°F (2020) | -20.0°F (2022) | 0.33 in (2014) |
| December 23 | 52.0°F (2023) | -14.1°F (2022) | 0.28 in (2023) |
| December 24 | 55.0°F (2023) | -11.0°F (2022) | 0.97 in (2023) |
| December 25 | 44.1°F (2011) | -9.0°F (2022) | 1.25 in (2016) |
| December 26 | 52.0°F (2011) | -15.0°F (2017) | 0.50 in (2018) |
| December 27 | 48.9°F (2025) | -15.0°F (2017) | 0.40 in (2018) |
| December 28 | 53.1°F (2024) | -5.1°F (2018) | 0.38 in (2019) |
| December 29 | 53.1°F (2024) | -8.0°F (2014) | 0.64 in (2019) |
| December 30 | 42.1°F (2016) | -13.0°F (2014) | 0.43 in (2024) |
| December 31 | 42.1°F (2025) | -20.0°F (2017) | 0.07 in (2011) |