December weather in Granger, WY
The average temperature in Granger in December is 21.8°F (12.2°F–31.4°F). Average precipitation: 0.24 inches. Average snowfall is 4.7 inches.
December is a winter month in Granger, and is cooler than the annual average of 43.2°F. Daily temperatures swing about 19.2°F between overnight low and afternoon high. Expect about 4 days with precipitation. Daylight averages about 8h 60m. For travel, December is cold.
Avg High
31.4°F
Avg Low
12.2°F
Precipitation
0.24 in
Snow
4.7 in
December records in Granger
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 59.0°F (1995) | -5.1°F (1991) | 0.10 in (1978) |
| December 2 | 51.1°F (2012) | -2.0°F (1991) | 0.15 in (1973) |
| December 3 | 55.0°F (1987) | -8.0°F (1967) | 0.10 in (2001) |
| December 4 | 55.0°F (1969) | -9.9°F (1967) | 0.15 in (2001) |
| December 5 | 55.0°F (1965) | -11.9°F (1972) | 0.19 in (1980) |
| December 6 | 55.9°F (1965) | -15.0°F (1972) | 0.35 in (1966) |
| December 7 | 62.1°F (1958) | -11.9°F (1960) | 0.50 in (1999) |
| December 8 | 51.1°F (1976) | -17.0°F (1978) | 0.22 in (2012) |
| December 9 | 52.0°F (1975) | -9.0°F (1967) | 0.27 in (1992) |
| December 10 | 52.0°F (2015) | -18.9°F (1961) | 0.40 in (1999) |
| December 11 | 52.0°F (2025) | -22.0°F (1972) | 0.29 in (1964) |
| December 12 | 53.1°F (2017) | -23.1°F (1972) | 0.28 in (1992) |
| December 13 | 57.0°F (2017) | -16.1°F (1967) | 0.76 in (1996) |
| December 14 | 57.0°F (2017) | -6.0°F (1972) | 0.34 in (1996) |
| December 15 | 53.1°F (1962) | -14.1°F (1987) | 0.30 in (2015) |
| December 16 | 55.0°F (2025) | -11.0°F (1972) | 0.15 in (1970) |
| December 17 | 54.0°F (2025) | -13.0°F (1964) | 1.00 in (1983) |
| December 18 | 55.0°F (2025) | -17.0°F (1964) | 0.37 in (1989) |
| December 19 | 48.0°F (1958) | -18.0°F (1998) | 1.00 in (1983) |
| December 20 | 55.9°F (1969) | -25.1°F (1990) | 0.10 in (1968) |
| December 21 | 60.1°F (1969) | -40.0°F (1990) | 0.55 in (1983) |
| December 22 | 59.0°F (2025) | -20.9°F (1983) | 0.30 in (1979) |
| December 23 | 60.1°F (2025) | -14.1°F (1983) | 0.64 in (1964) |
| December 24 | 46.9°F (1955) | -20.0°F (1983) | 0.40 in (1983) |
| December 25 | 55.9°F (2025) | -18.9°F (1983) | 0.66 in (1997) |
| December 26 | 55.0°F (2025) | -16.1°F (1984) | 1.30 in (1969) |
| December 27 | 50.0°F (2025) | -15.0°F (2015) | 0.38 in (1964) |
| December 28 | 48.9°F (1980) | -11.0°F (2015) | 0.15 in (1968) |
| December 29 | 46.9°F (1956) | -18.9°F (1988) | 0.75 in (1972) |
| December 30 | 51.1°F (2017) | -18.0°F (1978) | 0.61 in (1967) |
| December 31 | 54.0°F (2025) | -20.0°F (1978) | 0.10 in (2022) |