December weather in Vernal, UT
The average temperature in Vernal in December is 22.0°F (12.7°F–31.3°F). Average precipitation: 0.61 inches. Average snowfall is 6.4 inches.
December is a winter month in Vernal, and is cooler than the annual average of 46.9°F. Daily temperatures swing about 18.6°F between overnight low and afternoon high. Expect about 5 days with precipitation. Daylight averages about 9h 7m. For travel, December is cold.
Avg High
31.3°F
Avg Low
12.7°F
Precipitation
0.61 in
Snow
6.4 in
December records in Vernal
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 64.9°F (1995) | -5.1°F (1919) | 0.68 in (2007) |
| December 2 | 54.0°F (1894) | -8.0°F (1930) | 0.46 in (1947) |
| December 3 | 55.9°F (2008) | -8.0°F (1931) | 0.21 in (1926) |
| December 4 | 57.0°F (1995) | -6.0°F (1895) | 0.83 in (2013) |
| December 5 | 55.9°F (1958) | -11.9°F (2013) | 0.41 in (1951) |
| December 6 | 57.0°F (1977) | -16.1°F (2013) | 0.72 in (1966) |
| December 7 | 54.0°F (1939) | -13.0°F (2013) | 0.35 in (2007) |
| December 8 | 53.1°F (1939) | -18.0°F (1978) | 0.91 in (1897) |
| December 9 | 60.1°F (1929) | -27.9°F (1919) | 0.41 in (1997) |
| December 10 | 61.0°F (1929) | -22.0°F (1919) | 0.69 in (2021) |
| December 11 | 57.9°F (1929) | -14.1°F (1972) | 0.32 in (1910) |
| December 12 | 61.0°F (1929) | -29.9°F (1932) | 0.70 in (1937) |
| December 13 | 55.9°F (1929) | -31.0°F (1932) | 0.43 in (1933) |
| December 14 | 60.1°F (1929) | -32.1°F (1932) | 0.27 in (1975) |
| December 15 | 53.1°F (1948) | -29.0°F (1919) | 0.73 in (1936) |
| December 16 | 48.9°F (1980) | -24.0°F (1919) | 0.47 in (1908) |
| December 17 | 54.0°F (1894) | -20.0°F (1919) | 0.36 in (2016) |
| December 18 | 51.1°F (1901) | -18.0°F (1909) | 0.58 in (1978) |
| December 19 | 50.0°F (1955) | -18.0°F (1909) | 1.19 in (1949) |
| December 20 | 53.1°F (1917) | -20.0°F (1924) | 0.51 in (1984) |
| December 21 | 51.1°F (1969) | -17.0°F (1908) | 1.10 in (2010) |
| December 22 | 90.0°F (1990) | -20.0°F (1998) | 0.65 in (1979) |
| December 23 | 91.9°F (1990) | -23.1°F (1998) | 0.38 in (1945) |
| December 24 | 93.9°F (1990) | -27.9°F (1924) | 0.46 in (1942) |
| December 25 | 53.1°F (2025) | -29.0°F (1924) | 0.37 in (1971) |
| December 26 | 57.9°F (2025) | -27.9°F (1924) | 0.75 in (1969) |
| December 27 | 50.0°F (1955) | -23.1°F (1924) | 0.90 in (1927) |
| December 28 | 55.0°F (1917) | -16.1°F (1930) | 0.85 in (1964) |
| December 29 | 51.1°F (1933) | -17.0°F (1932) | 0.35 in (1931) |
| December 30 | 52.0°F (1917) | -18.0°F (1948) | 0.37 in (2010) |
| December 31 | 54.0°F (2017) | -22.0°F (1931) | 1.00 in (1936) |