December weather in Somerton, AZ
The average temperature in Somerton in December is 57.3°F (46.8°F–67.8°F). Average precipitation: 0.43 inches.
December is a winter month in Somerton, and is cooler than the annual average of 76°F. Daily temperatures swing about 21°F between overnight low and afternoon high. Expect about 2 days with precipitation. Daylight averages about 9h 52m. For travel, December is a comfortable month to visit.
Avg High
67.8°F
Avg Low
46.8°F
Precipitation
0.43 in
Daylight
9h 52m
December records in Somerton
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 84.9°F (2021) | 39.0°F (1996) | 0.45 in (1983) |
| December 2 | 84.0°F (2021) | 35.1°F (1991) | 0.04 in (1983) |
| December 3 | 80.1°F (2021) | 41.0°F (1991) | 0.28 in (1992) |
| December 4 | 82.9°F (2021) | 39.0°F (2011) | 0.56 in (1992) |
| December 5 | 82.9°F (2012) | 37.9°F (2011) | 0.75 in (2004) |
| December 6 | 80.1°F (1989) | 39.9°F (1983) | 0.57 in (1997) |
| December 7 | 80.1°F (2012) | 37.9°F (1998) | 0.47 in (2018) |
| December 8 | 79.0°F (1996) | 39.0°F (2011) | 0.28 in (1984) |
| December 9 | 80.1°F (1989) | 37.9°F (2011) | 1.82 in (1982) |
| December 10 | 79.0°F (2010) | 35.1°F (1985) | 0.41 in (1991) |
| December 11 | 81.0°F (2010) | 36.0°F (1994) | 0.18 in (1985) |
| December 12 | 82.0°F (2010) | 37.9°F (1985) | 0.06 in (2014) |
| December 13 | 82.9°F (2010) | 37.0°F (1985) | 1.12 in (2011) |
| December 14 | 81.0°F (2016) | 37.9°F (2001) | 0.03 in (1984) |
| December 15 | 77.0°F (1983) | 35.1°F (1984) | 0.02 in (1998) |
| December 16 | 82.0°F (2016) | 34.0°F (2005) | 0.13 in (2008) |
| December 17 | 80.1°F (2025) | 37.0°F (2005) | 0.69 in (1987) |
| December 18 | 78.1°F (2024) | 36.0°F (1990) | 0.07 in (1992) |
| December 19 | 81.0°F (2024) | 37.0°F (1996) | 0.07 in (2013) |
| December 20 | 81.0°F (2025) | 33.1°F (2006) | 0.04 in (2013) |
| December 21 | 79.0°F (2024) | 34.0°F (2006) | 0.46 in (1997) |
| December 22 | 80.1°F (2025) | 34.0°F (2017) | 1.75 in (1997) |
| December 23 | 79.0°F (2024) | 32.0°F (1990) | 0.07 in (2019) |
| December 24 | 81.0°F (2005) | 35.1°F (2002) | 0.19 in (2016) |
| December 25 | 79.0°F (2005) | 36.0°F (1990) | 0.69 in (1994) |
| December 26 | 78.1°F (2022) | 30.9°F (1987) | 0.08 in (1984) |
| December 27 | 75.9°F (2013) | 32.0°F (1987) | 0.71 in (1984) |
| December 28 | 78.1°F (2017) | 33.1°F (1988) | 0.23 in (1992) |
| December 29 | 80.1°F (2017) | 35.1°F (2003) | 0.09 in (2004) |
| December 30 | 81.0°F (1985) | 30.9°F (1988) | 0.14 in (2016) |
| December 31 | 78.1°F (1998) | 33.1°F (1988) | 0.11 in (2021) |