December weather in Harmon, IL
The average temperature in Harmon in December is °F (°F–°F). Average precipitation: 2.00 inches. Average snowfall is 7.9 inches.
December is a winter month in Harmon, and is cooler than the annual average of 0°F. Expect about 8 days with precipitation. Daylight averages about 8h 59m.
Avg High
°F
Avg Low
°F
Precipitation
2.00 in
Snow
7.9 in
December records in Harmon
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | — | — | 0.64 in (2018) |
| December 2 | — | — | 0.76 in (2007) |
| December 3 | — | — | 0.41 in (2011) |
| December 4 | — | — | 0.45 in (2016) |
| December 5 | — | — | 1.01 in (1999) |
| December 6 | — | — | 1.23 in (1999) |
| December 7 | — | — | 1.05 in (1994) |
| December 8 | — | — | 0.14 in (2012) |
| December 9 | — | — | 0.29 in (2005) |
| December 10 | — | — | 0.61 in (1992) |
| December 11 | — | — | 1.74 in (2021) |
| December 12 | — | — | 1.15 in (2008) |
| December 13 | — | — | 0.50 in (2001) |
| December 14 | — | — | 1.05 in (2011) |
| December 15 | — | — | 0.60 in (1992) |
| December 16 | — | — | 1.22 in (1992) |
| December 17 | — | — | 0.31 in (2008) |
| December 18 | — | — | 0.27 in (2002) |
| December 19 | — | — | 0.84 in (2008) |
| December 20 | — | — | 0.47 in (2012) |
| December 21 | — | — | 1.10 in (2006) |
| December 22 | — | — | 0.44 in (2013) |
| December 23 | — | — | 0.51 in (2007) |
| December 24 | — | — | 1.26 in (2009) |
| December 25 | — | — | 1.20 in (2009) |
| December 26 | — | — | 0.80 in (1993) |
| December 27 | — | — | 0.35 in (2021) |
| December 28 | — | — | 1.44 in (2008) |
| December 29 | — | — | 1.48 in (2015) |
| December 30 | — | — | 0.89 in (2020) |
| December 31 | — | — | 0.83 in (1992) |