December weather in Mona, UT
The average temperature in Mona in December is 28.3°F (19.8°F–36.8°F). Average precipitation: 1.24 inches. Average snowfall is 12.5 inches.
December is a winter month in Mona, and is cooler than the annual average of 50.5°F. Daily temperatures swing about 17°F between overnight low and afternoon high. Expect about 8 days with precipitation. Daylight averages about 9h 11m. For travel, December is cold.
Avg High
36.8°F
Avg Low
19.8°F
Precipitation
1.24 in
Snow
12.5 in
December records in Mona
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 70.0°F (1995) | -0.9°F (2004) | 0.62 in (2007) |
| December 2 | 64.9°F (1995) | -2.0°F (2004) | 0.98 in (2018) |
| December 3 | 66.0°F (1949) | 0.0°F (2004) | 0.49 in (1971) |
| December 4 | 62.1°F (1958) | 1.0°F (2013) | 0.60 in (1941) |
| December 5 | 64.9°F (1946) | -9.0°F (2013) | 0.99 in (1951) |
| December 6 | 66.0°F (1949) | -2.0°F (2013) | 0.74 in (1966) |
| December 7 | 64.0°F (1958) | -2.9°F (1978) | 1.08 in (1966) |
| December 8 | 62.1°F (1959) | -9.0°F (1978) | 0.69 in (1952) |
| December 9 | 62.1°F (1981) | -9.0°F (1951) | 0.84 in (2021) |
| December 10 | 64.0°F (1981) | -14.1°F (1972) | 0.60 in (1970) |
| December 11 | 63.0°F (1950) | -8.0°F (1961) | 0.75 in (1907) |
| December 12 | 62.1°F (2014) | -8.0°F (1972) | 0.57 in (1992) |
| December 13 | 62.1°F (1950) | 1.0°F (1967) | 0.47 in (1990) |
| December 14 | 62.1°F (1946) | -11.0°F (1972) | 0.56 in (2015) |
| December 15 | 63.0°F (1977) | -13.0°F (1972) | 0.38 in (1983) |
| December 16 | 62.1°F (1962) | 3.0°F (1972) | 1.42 in (2016) |
| December 17 | 64.0°F (1962) | -0.9°F (1971) | 0.64 in (2002) |
| December 18 | 61.0°F (1962) | -0.9°F (2016) | 0.74 in (1970) |
| December 19 | 66.0°F (1958) | -2.0°F (1970) | 0.74 in (1967) |
| December 20 | 62.1°F (1981) | -2.9°F (1992) | 0.44 in (2010) |
| December 21 | 79.0°F (1983) | -11.0°F (1990) | 0.95 in (2003) |
| December 22 | 64.9°F (2025) | -14.1°F (1998) | 0.71 in (2014) |
| December 23 | 66.9°F (2025) | -20.9°F (1990) | 0.37 in (1945) |
| December 24 | 63.0°F (2025) | -17.0°F (1990) | 0.52 in (2021) |
| December 25 | 59.0°F (1954) | -7.1°F (1948) | 0.88 in (1971) |
| December 26 | 59.0°F (1980) | -9.0°F (1987) | 0.65 in (2003) |
| December 27 | 64.0°F (1957) | -8.0°F (1988) | 0.52 in (2005) |
| December 28 | 66.9°F (1957) | -0.9°F (1987) | 0.88 in (1948) |
| December 29 | 57.0°F (2017) | -7.1°F (1988) | 1.00 in (2010) |
| December 30 | 57.9°F (1962) | -20.0°F (1990) | 1.45 in (1951) |
| December 31 | 59.0°F (1996) | -8.0°F (1990) | 1.01 in (2022) |