December weather in Monon, IN
The average temperature in Monon in December is 29.1°F (21.5°F–36.7°F). Average precipitation: 2.16 inches. Average snowfall is 5.4 inches.
December is a winter month in Monon, and is cooler than the annual average of 49.8°F. Daily temperatures swing about 15.2°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 9h 5m. For travel, December is cold.
Avg High
36.7°F
Avg Low
21.5°F
Precipitation
2.16 in
Snow
5.4 in
December records in Monon
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 60.1°F (1998) | 10.0°F (2024) | 1.51 in (2006) |
| December 2 | 60.1°F (2012) | 10.0°F (2005) | 0.84 in (2018) |
| December 3 | 63.0°F (1998) | 8.1°F (2002) | 0.48 in (1990) |
| December 4 | 68.0°F (2012) | 8.1°F (2025) | 0.38 in (2012) |
| December 5 | 64.0°F (1998) | -2.0°F (2025) | 0.93 in (1999) |
| December 6 | 69.1°F (2001) | -2.0°F (2005) | 0.55 in (1999) |
| December 7 | 68.0°F (1998) | -5.1°F (2005) | 1.54 in (1994) |
| December 8 | 68.0°F (1998) | -5.1°F (2000) | 0.08 in (2004) |
| December 9 | 55.9°F (2024) | 1.9°F (2000) | 0.50 in (2009) |
| December 10 | 55.9°F (2023) | 1.0°F (2013) | 0.69 in (1997) |
| December 11 | 60.1°F (2021) | 3.9°F (2009) | 0.88 in (2000) |
| December 12 | 60.1°F (2015) | -5.1°F (2013) | 1.20 in (2007) |
| December 13 | 64.9°F (2015) | 0.0°F (2000) | 0.43 in (2006) |
| December 14 | 62.1°F (2015) | -2.0°F (2016) | 0.70 in (1999) |
| December 15 | 55.9°F (2011) | -4.0°F (2010) | 1.98 in (2011) |
| December 16 | 63.0°F (2021) | -2.9°F (2010) | 0.51 in (2007) |
| December 17 | 55.9°F (2021) | -4.0°F (2010) | 0.48 in (2001) |
| December 18 | 53.1°F (2023) | 1.0°F (2000) | 0.41 in (2021) |
| December 19 | 55.0°F (2002) | -11.0°F (2016) | 1.38 in (2008) |
| December 20 | 52.0°F (2002) | -2.0°F (2005) | 0.79 in (2012) |
| December 21 | 51.1°F (2012) | -7.1°F (2000) | 0.60 in (2015) |
| December 22 | 53.1°F (2006) | -7.1°F (2000) | 0.90 in (2013) |
| December 23 | 55.9°F (2015) | -11.0°F (2022) | 0.90 in (2023) |
| December 24 | 61.0°F (2015) | -8.0°F (2022) | 0.75 in (2008) |
| December 25 | 57.0°F (2021) | -9.0°F (2000) | 0.54 in (2002) |
| December 26 | 61.0°F (2019) | -5.1°F (2004) | 0.32 in (2002) |
| December 27 | 63.0°F (2019) | -11.9°F (2017) | 1.20 in (2015) |
| December 28 | 64.0°F (2008) | -9.9°F (2017) | 0.75 in (2008) |
| December 29 | 64.0°F (2025) | 1.0°F (2017) | 1.86 in (2015) |
| December 30 | 59.0°F (2019) | 1.9°F (1998) | 1.62 in (1990) |
| December 31 | 55.9°F (2002) | -6.0°F (2017) | 0.94 in (1992) |