December weather in Rensselaer, IN
The average temperature in Rensselaer in December is 29.5°F (21.9°F–37.0°F). Average precipitation: 2.25 inches. Average snowfall is 4.2 inches.
December is a winter month in Rensselaer, and is cooler than the annual average of 50.5°F. Daily temperatures swing about 15.1°F between overnight low and afternoon high. Expect about 11 days with precipitation. Daylight averages about 9h 4m. For travel, December is cold.
Avg High
37.0°F
Avg Low
21.9°F
Precipitation
2.25 in
Snow
4.2 in
December records in Rensselaer
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 61.0°F (1970) | 7.0°F (2025) | 1.46 in (2006) |
| December 2 | 64.9°F (1982) | 8.1°F (2024) | 0.62 in (2018) |
| December 3 | 64.9°F (1998) | 1.0°F (1991) | 1.67 in (1982) |
| December 4 | 72.0°F (2012) | 1.9°F (1991) | 0.51 in (2012) |
| December 5 | 63.0°F (2017) | -7.1°F (2025) | 0.82 in (1999) |
| December 6 | 66.9°F (1998) | 1.0°F (2005) | 1.26 in (1994) |
| December 7 | 61.0°F (1980) | -5.1°F (1977) | 0.80 in (2004) |
| December 8 | 62.1°F (1991) | -4.0°F (1977) | 0.51 in (1987) |
| December 9 | 57.0°F (2023) | -4.0°F (1977) | 1.13 in (1992) |
| December 10 | 57.0°F (2023) | -2.9°F (1977) | 1.03 in (1971) |
| December 11 | 61.0°F (2021) | -9.0°F (1977) | 1.02 in (1985) |
| December 12 | 61.0°F (1991) | -7.1°F (1977) | 1.27 in (2007) |
| December 13 | 64.0°F (2015) | -4.0°F (1989) | 0.50 in (1975) |
| December 14 | 62.1°F (1975) | -2.9°F (2025) | 0.53 in (1999) |
| December 15 | 64.9°F (1975) | -2.9°F (2025) | 2.37 in (2011) |
| December 16 | 63.0°F (2021) | -9.9°F (1989) | 0.52 in (2007) |
| December 17 | 63.0°F (1984) | -9.9°F (1989) | 0.90 in (2023) |
| December 18 | 55.0°F (1984) | -8.0°F (1985) | 0.47 in (1998) |
| December 19 | 55.0°F (2002) | -11.0°F (1983) | 0.75 in (2008) |
| December 20 | 54.0°F (1988) | -13.0°F (1989) | 0.93 in (1987) |
| December 21 | 57.9°F (1988) | -15.0°F (1989) | 0.60 in (2006) |
| December 22 | 55.0°F (1984) | -23.1°F (1989) | 0.82 in (2013) |
| December 23 | 55.9°F (1996) | -18.9°F (1989) | 1.64 in (1988) |
| December 24 | 62.1°F (2015) | -18.0°F (1983) | 0.85 in (2008) |
| December 25 | 62.1°F (1982) | -18.0°F (1983) | 0.85 in (1979) |
| December 26 | 61.0°F (1982) | -13.0°F (1983) | 0.26 in (1975) |
| December 27 | 63.0°F (2019) | -11.9°F (2017) | 1.25 in (2015) |
| December 28 | 64.0°F (2008) | -9.0°F (2017) | 1.03 in (2008) |
| December 29 | 66.9°F (1984) | -9.0°F (1983) | 1.90 in (1990) |
| December 30 | 61.0°F (1984) | -11.9°F (1983) | 1.75 in (1990) |
| December 31 | 60.1°F (1972) | -9.0°F (1976) | 0.58 in (2024) |