December weather in Diamondville, WY
The average temperature in Diamondville in December is 17.0°F (2.7°F–31.4°F). Average precipitation: 0.67 inches. Average snowfall is 9.5 inches.
December is a winter month in Diamondville, and is cooler than the annual average of 38.4°F. Daily temperatures swing about 28.7°F between overnight low and afternoon high. Expect about 6 days with precipitation. Daylight averages about 8h 59m. For travel, December is cold.
Avg High
31.4°F
Avg Low
2.7°F
Precipitation
0.67 in
Snow
9.5 in
December records in Diamondville
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 53.1°F (1995) | -18.0°F (1991) | 0.49 in (1983) |
| December 2 | 55.9°F (1995) | -17.0°F (1991) | 0.40 in (2012) |
| December 3 | 64.0°F (1998) | -11.0°F (2004) | 0.21 in (1934) |
| December 4 | 53.1°F (1998) | -22.0°F (2013) | 0.82 in (1938) |
| December 5 | 55.0°F (1939) | -20.9°F (2016) | 0.53 in (1956) |
| December 6 | 53.1°F (1939) | -18.0°F (2013) | 0.26 in (1995) |
| December 7 | 54.0°F (1939) | -31.0°F (2005) | 0.25 in (1966) |
| December 8 | 54.0°F (1939) | -33.0°F (2005) | 0.25 in (2007) |
| December 9 | 55.0°F (1939) | -29.9°F (2005) | 1.01 in (1985) |
| December 10 | 55.9°F (1939) | -31.0°F (1972) | 0.60 in (1949) |
| December 11 | 52.0°F (1933) | -24.0°F (1961) | 0.50 in (1949) |
| December 12 | 54.0°F (2017) | -23.1°F (1985) | 0.27 in (1948) |
| December 13 | 46.9°F (1979) | -25.1°F (1967) | 0.70 in (1996) |
| December 14 | 53.1°F (2025) | -15.0°F (2007) | 0.28 in (2016) |
| December 15 | 51.1°F (2025) | -20.0°F (1990) | 0.40 in (1983) |
| December 16 | 55.0°F (1939) | -20.0°F (1990) | 0.29 in (1981) |
| December 17 | 52.0°F (1969) | -16.1°F (1964) | 0.19 in (1984) |
| December 18 | 51.1°F (1981) | -22.0°F (1964) | 0.52 in (2010) |
| December 19 | 50.0°F (1969) | -17.0°F (2006) | 0.31 in (1949) |
| December 20 | 46.9°F (2017) | -16.1°F (1990) | 0.57 in (2013) |
| December 21 | 55.9°F (1969) | -29.9°F (1990) | 0.31 in (2015) |
| December 22 | 59.0°F (1933) | -38.9°F (1990) | 0.27 in (2014) |
| December 23 | 45.0°F (1964) | -31.0°F (1983) | 0.88 in (1964) |
| December 24 | 48.0°F (1976) | -23.1°F (1983) | 0.52 in (1955) |
| December 25 | 46.0°F (2025) | -26.0°F (1987) | 0.64 in (1937) |
| December 26 | 46.9°F (1980) | -26.0°F (1987) | 0.25 in (1996) |
| December 27 | 48.9°F (1980) | -26.0°F (2015) | 0.24 in (1998) |
| December 28 | 52.0°F (1980) | -18.9°F (1983) | 0.51 in (1936) |
| December 29 | 54.0°F (1980) | -18.0°F (1983) | 0.31 in (1940) |
| December 30 | 55.0°F (1980) | -31.0°F (2014) | 0.44 in (1965) |
| December 31 | 46.9°F (1954) | -31.0°F (2014) | 0.69 in (1995) |