December weather in Mammoth, AZ
The average temperature in Mammoth in December is 45.2°F (31.4°F–59.1°F). Average precipitation: 1.50 inches.
December is a winter month in Mammoth, and is cooler than the annual average of 62.1°F. Daily temperatures swing about 27.7°F between overnight low and afternoon high. Daylight averages about 9h 51m. For travel, December is cool.
Avg High
59.1°F
Avg Low
31.4°F
Precipitation
1.50 in
Daylight
9h 51m
December records in Mammoth
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 73.9°F (2021) | 21.0°F (2015) | 0.29 in (2023) |
| December 2 | 73.9°F (2017) | 21.0°F (2015) | 0.47 in (2011) |
| December 3 | 75.0°F (2021) | 26.1°F (2016) | 0.05 in (2011) |
| December 4 | 73.9°F (2024) | 21.0°F (2020) | 1.08 in (2022) |
| December 5 | 73.0°F (2010) | 23.0°F (2014) | 0.71 in (2022) |
| December 6 | 77.0°F (2012) | 16.0°F (2011) | 0.07 in (2017) |
| December 7 | 75.9°F (2023) | 21.0°F (2013) | 0.00 in (2010) |
| December 8 | 70.0°F (2015) | 19.0°F (2017) | 0.02 in (2019) |
| December 9 | 72.0°F (2010) | 21.0°F (2011) | 0.64 in (2019) |
| December 10 | 73.0°F (2010) | 19.9°F (2013) | 0.66 in (2021) |
| December 11 | 73.9°F (2025) | 19.9°F (2013) | 0.30 in (2020) |
| December 12 | 73.0°F (2017) | 26.1°F (2012) | 0.65 in (2015) |
| December 13 | 73.9°F (2025) | 19.0°F (2016) | 0.38 in (2011) |
| December 14 | 77.0°F (2023) | 24.1°F (2018) | 0.92 in (2012) |
| December 15 | 75.9°F (2025) | 19.9°F (2022) | 0.17 in (2012) |
| December 16 | 73.9°F (2016) | 17.1°F (2015) | 0.56 in (2012) |
| December 17 | 75.0°F (2024) | 17.1°F (2015) | 0.88 in (2016) |
| December 18 | 73.9°F (2023) | 18.0°F (2016) | 0.67 in (2014) |
| December 19 | 77.0°F (2023) | 19.9°F (2016) | 0.20 in (2011) |
| December 20 | 75.9°F (2025) | 18.0°F (2012) | 0.18 in (2013) |
| December 21 | 75.9°F (2025) | 25.0°F (2022) | 0.21 in (2013) |
| December 22 | 75.0°F (2024) | 19.9°F (2017) | 0.37 in (2016) |
| December 23 | 80.1°F (2025) | 21.9°F (2011) | 1.49 in (2023) |
| December 24 | 80.1°F (2025) | 19.9°F (2011) | 0.26 in (2021) |
| December 25 | 71.1°F (2024) | 19.9°F (2011) | 0.17 in (2016) |
| December 26 | 70.0°F (2017) | 19.9°F (2015) | 0.77 in (2019) |
| December 27 | 73.0°F (2022) | 18.0°F (2015) | 0.18 in (2019) |
| December 28 | 71.1°F (2017) | 19.9°F (2014) | 0.45 in (2019) |
| December 29 | 73.0°F (2017) | 17.1°F (2018) | 0.18 in (2020) |
| December 30 | 77.0°F (2017) | 17.1°F (2018) | 0.85 in (2010) |
| December 31 | 75.9°F (2017) | 10.9°F (2010) | 0.62 in (2016) |