December weather in Marshalltown, IA
The average temperature in Marshalltown in December is °F (°F–°F). Average precipitation: 1.46 inches.
December is a winter month in Marshalltown, and is cooler than the annual average of 0°F. Daylight averages about 8h 57m.
Avg High
°F
Avg Low
°F
Precipitation
1.46 in
Daylight
8h 57m
December records in Marshalltown
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 57.9°F (1994) | 12.9°F (1991) | 0.38 in (2015) |
| December 2 | 55.0°F (1994) | 18.0°F (1991) | 0.85 in (2018) |
| December 3 | 50.0°F (1994) | -2.0°F (1991) | 0.14 in (1991) |
| December 4 | 53.1°F (1994) | -2.9°F (1991) | 0.80 in (1990) |
| December 5 | 43.0°F (1990) | 6.1°F (1992) | 0.14 in (2016) |
| December 6 | 44.1°F (1991) | 12.9°F (1991) | 0.07 in (1992) |
| December 7 | 43.0°F (1993) | 10.9°F (1992) | 1.05 in (1994) |
| December 8 | 48.9°F (1991) | 12.0°F (1992) | 0.02 in (2014) |
| December 9 | 53.1°F (1993) | 10.9°F (1994) | 0.55 in (2022) |
| December 10 | 52.0°F (1991) | 0.0°F (1994) | 0.16 in (2012) |
| December 11 | 48.9°F (1990) | -2.0°F (1994) | 0.17 in (2013) |
| December 12 | 46.9°F (1991) | 9.0°F (1994) | 0.70 in (2020) |
| December 13 | 42.1°F (1991) | 10.9°F (1994) | 0.72 in (2015) |
| December 14 | 37.0°F (1992) | 21.9°F (1991) | 2.45 in (2015) |
| December 15 | 44.1°F (1993) | 16.0°F (1991) | 0.45 in (1990) |
| December 16 | 46.0°F (1991) | 19.9°F (1994) | 0.49 in (2014) |
| December 17 | 42.1°F (1993) | 10.9°F (1991) | 0.11 in (2023) |
| December 18 | 37.0°F (1993) | 8.1°F (1991) | 0.28 in (1990) |
| December 19 | 45.0°F (1993) | 12.0°F (1992) | 0.08 in (1989) |
| December 20 | 43.0°F (1994) | 1.0°F (1990) | 0.86 in (2012) |
| December 21 | 39.9°F (1994) | -9.9°F (1990) | 0.51 in (1991) |
| December 22 | 39.9°F (1992) | -11.0°F (1990) | 0.36 in (2013) |
| December 23 | 37.0°F (1994) | -7.1°F (1990) | 0.56 in (2014) |
| December 24 | 41.0°F (1991) | 1.0°F (1992) | 0.36 in (1988) |
| December 25 | 44.1°F (1991) | -4.0°F (1990) | 0.29 in (2023) |
| December 26 | 45.0°F (1994) | -2.9°F (1990) | 0.46 in (2016) |
| December 27 | 48.9°F (1994) | -6.0°F (1993) | 1.25 in (2018) |
| December 28 | 36.0°F (1990) | -7.1°F (1993) | 0.70 in (2018) |
| December 29 | 37.9°F (1991) | -6.0°F (1990) | 0.89 in (2019) |
| December 30 | 36.0°F (1991) | -6.0°F (1990) | 0.56 in (2020) |
| December 31 | 41.0°F (1993) | -2.0°F (1992) | 0.30 in (2017) |