December weather in Round Mountain, TX
The average temperature in Round Mountain in December is 50.5°F (37.1°F–63.9°F). Average precipitation: 1.85 inches.
December is a winter month in Round Mountain, and is cooler than the annual average of 67°F. Daily temperatures swing about 26.8°F between overnight low and afternoon high. Expect about 6 days with precipitation. Daylight averages about 10h 3m. For travel, December is cool.
Avg High
63.9°F
Avg Low
37.1°F
Precipitation
1.85 in
Daylight
10h 3m
December records in Round Mountain
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 79.0°F (1998) | 21.9°F (2010) | 1.57 in (1968) |
| December 2 | 82.0°F (2013) | 23.0°F (2010) | 1.02 in (1965) |
| December 3 | 84.0°F (1972) | 21.9°F (1974) | 2.43 in (1965) |
| December 4 | 86.0°F (1977) | 18.0°F (2006) | 0.46 in (2011) |
| December 5 | 81.0°F (1998) | 17.1°F (2009) | 1.17 in (1969) |
| December 6 | 89.1°F (1995) | 17.1°F (2005) | 0.71 in (1969) |
| December 7 | 84.9°F (2012) | 21.0°F (1999) | 0.93 in (2024) |
| December 8 | 81.0°F (2012) | 21.0°F (1968) | 1.71 in (2018) |
| December 9 | 84.9°F (2019) | 19.0°F (2005) | 1.21 in (2002) |
| December 10 | 82.0°F (2021) | 16.0°F (1995) | 0.85 in (1998) |
| December 11 | 82.9°F (2021) | 15.1°F (1966) | 2.00 in (1985) |
| December 12 | 84.0°F (1996) | 16.0°F (1966) | 0.60 in (1999) |
| December 13 | 88.0°F (1973) | 10.9°F (1966) | 0.47 in (1984) |
| December 14 | 82.9°F (1995) | 17.1°F (1966) | 0.95 in (1986) |
| December 15 | 82.9°F (1973) | 16.0°F (2004) | 2.00 in (1996) |
| December 16 | 82.0°F (1995) | 12.0°F (1989) | 1.29 in (1984) |
| December 17 | 84.9°F (1977) | 12.9°F (1989) | 0.50 in (1995) |
| December 18 | 88.0°F (2021) | 19.0°F (1981) | 0.57 in (1991) |
| December 19 | 84.9°F (2012) | 16.0°F (1996) | 1.80 in (1991) |
| December 20 | 81.0°F (2012) | 16.0°F (1973) | 9.00 in (2024) |
| December 21 | 81.0°F (2008) | 19.0°F (1973) | 4.57 in (1991) |
| December 22 | 82.9°F (2018) | 7.0°F (2022) | 1.72 in (1991) |
| December 23 | 82.9°F (1966) | 1.0°F (1989) | 1.07 in (1986) |
| December 24 | 82.0°F (1964) | 3.0°F (1989) | 0.86 in (2006) |
| December 25 | 79.0°F (1964) | 9.0°F (1983) | 0.90 in (1987) |
| December 26 | 84.9°F (2021) | 10.0°F (1983) | 1.93 in (2018) |
| December 27 | 81.0°F (2005) | 21.0°F (1983) | 0.59 in (1982) |
| December 28 | 84.9°F (2005) | 21.9°F (2007) | 2.01 in (1994) |
| December 29 | 84.0°F (2005) | 14.0°F (1983) | 0.53 in (1969) |
| December 30 | 91.0°F (2024) | 5.0°F (1983) | 0.44 in (2006) |
| December 31 | 82.9°F (1973) | 7.0°F (1983) | 1.64 in (1984) |