December weather in Greybull, WY
The average temperature in Greybull in December is 18.6°F (5.5°F–31.6°F). Average precipitation: 0.20 inches. Average snowfall is 4.2 inches.
December is a winter month in Greybull, and is cooler than the annual average of 45°F. Daily temperatures swing about 26.1°F between overnight low and afternoon high. Expect about 3 days with precipitation. Daylight averages about 8h 39m. For travel, December is cold.
Avg High
31.6°F
Avg Low
5.5°F
Precipitation
0.20 in
Snow
4.2 in
December records in Greybull
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 69.1°F (1995) | -20.0°F (2014) | 0.24 in (1978) |
| December 2 | 61.0°F (1998) | -9.9°F (2015) | 0.18 in (1972) |
| December 3 | 54.0°F (2013) | -0.9°F (2014) | 0.25 in (1961) |
| December 4 | 57.9°F (2012) | -17.0°F (1992) | 0.50 in (1972) |
| December 5 | 55.0°F (1989) | -18.9°F (1992) | 0.07 in (1978) |
| December 6 | 55.0°F (1987) | -18.0°F (2013) | 0.03 in (1957) |
| December 7 | 55.0°F (1989) | -23.1°F (2013) | 0.14 in (1982) |
| December 8 | 48.0°F (1990) | -20.9°F (2013) | 0.24 in (1958) |
| December 9 | 51.1°F (1993) | -18.9°F (2013) | 0.15 in (1963) |
| December 10 | 54.0°F (1987) | -9.0°F (2013) | 0.05 in (2012) |
| December 11 | 55.9°F (1993) | -14.1°F (2000) | 1.50 in (1975) |
| December 12 | 62.1°F (2004) | -15.0°F (2000) | 0.58 in (1992) |
| December 13 | 57.9°F (1988) | -9.0°F (2000) | 0.19 in (1989) |
| December 14 | 57.9°F (1988) | -6.0°F (1987) | 0.84 in (1989) |
| December 15 | 57.9°F (1988) | -7.1°F (2007) | 0.75 in (1996) |
| December 16 | 51.1°F (2018) | -8.0°F (2000) | 0.19 in (2016) |
| December 17 | 52.0°F (1998) | -25.1°F (2016) | 0.31 in (2017) |
| December 18 | 48.0°F (2018) | -27.0°F (2016) | 0.11 in (1955) |
| December 19 | 46.9°F (1994) | -18.9°F (1989) | 0.16 in (1996) |
| December 20 | 48.0°F (2004) | -18.9°F (1990) | 0.15 in (1983) |
| December 21 | 48.0°F (2004) | -36.0°F (1990) | 0.37 in (1960) |
| December 22 | 50.0°F (2018) | -40.0°F (1990) | 0.25 in (1999) |
| December 23 | 42.1°F (2015) | -40.0°F (1990) | 0.18 in (2017) |
| December 24 | 55.0°F (1994) | -40.0°F (1990) | 0.17 in (1984) |
| December 25 | 52.0°F (1994) | -18.0°F (1990) | 0.30 in (1967) |
| December 26 | 44.1°F (1998) | -24.0°F (1996) | 0.29 in (2016) |
| December 27 | 48.9°F (1994) | -18.0°F (1990) | 0.17 in (1967) |
| December 28 | 55.0°F (1998) | -18.9°F (1990) | 0.04 in (1955) |
| December 29 | 48.0°F (2002) | -25.1°F (1990) | 0.15 in (1953) |
| December 30 | 46.9°F (2011) | -33.0°F (1990) | 0.25 in (1981) |
| December 31 | 48.9°F (2004) | -33.0°F (1990) | 0.18 in (1977) |