December weather in Byron, IL
The average temperature in Byron in December is °F (°F–°F). Average precipitation: 1.98 inches. Average snowfall is 6.7 inches.
December is a winter month in Byron, and is cooler than the annual average of 0°F. Expect about 7 days with precipitation. Daylight averages about 8h 56m.
Avg High
°F
Avg Low
°F
Precipitation
1.98 in
Snow
6.7 in
December records in Byron
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | — | — | 1.35 in (2006) |
| December 2 | — | — | 1.00 in (1950) |
| December 3 | — | — | 0.80 in (2007) |
| December 4 | — | — | 0.95 in (2011) |
| December 5 | — | — | 0.85 in (1999) |
| December 6 | — | — | 0.75 in (1994) |
| December 7 | — | — | 0.90 in (1998) |
| December 8 | — | — | 0.18 in (2009) |
| December 9 | — | — | 1.14 in (2009) |
| December 10 | — | — | 0.58 in (1997) |
| December 11 | — | — | 1.30 in (2000) |
| December 12 | — | — | 0.82 in (2020) |
| December 13 | — | — | 0.40 in (2010) |
| December 14 | — | — | 1.74 in (2015) |
| December 15 | — | — | 1.74 in (1987) |
| December 16 | — | — | 0.92 in (1992) |
| December 17 | — | — | 0.50 in (2016) |
| December 18 | — | — | 0.21 in (1990) |
| December 19 | — | — | 0.86 in (2008) |
| December 20 | — | — | 1.10 in (1949) |
| December 21 | — | — | 1.19 in (2012) |
| December 22 | — | — | 0.45 in (2009) |
| December 23 | — | — | 0.39 in (2014) |
| December 24 | — | — | 1.10 in (2009) |
| December 25 | — | — | 0.21 in (1950) |
| December 26 | — | — | 0.42 in (2023) |
| December 27 | — | — | 1.31 in (1988) |
| December 28 | — | — | 1.89 in (2008) |
| December 29 | — | — | 0.67 in (2025) |
| December 30 | — | — | 1.04 in (2020) |
| December 31 | — | — | 0.44 in (1992) |