December weather in Fountain Hills, AZ
The average temperature in Fountain Hills in December is 53.5°F (43.9°F–63.0°F). Average precipitation: 1.15 inches.
December is a winter month in Fountain Hills, and is cooler than the annual average of 72.1°F. Daily temperatures swing about 19.1°F between overnight low and afternoon high. Expect about 3 days with precipitation. Daylight averages about 9h 47m. For travel, December is a comfortable month to visit.
Avg High
63.0°F
Avg Low
43.9°F
Precipitation
1.15 in
Daylight
9h 47m
December records in Fountain Hills
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 82.0°F (1995) | 32.0°F (1996) | 2.30 in (2007) |
| December 2 | 84.0°F (1995) | 30.9°F (1991) | 0.94 in (1983) |
| December 3 | 82.0°F (1995) | 32.0°F (1991) | 0.30 in (1998) |
| December 4 | 82.0°F (1980) | 32.0°F (1991) | 1.15 in (1992) |
| December 5 | 82.9°F (1979) | 35.1°F (1983) | 1.13 in (1992) |
| December 6 | 81.0°F (2012) | 30.0°F (2013) | 1.20 in (1994) |
| December 7 | 81.0°F (2023) | 30.9°F (2013) | 0.66 in (1986) |
| December 8 | 79.0°F (1979) | 32.0°F (1998) | 0.76 in (1992) |
| December 9 | 82.9°F (1996) | 30.9°F (2005) | 0.43 in (1982) |
| December 10 | 82.0°F (1981) | 30.0°F (1985) | 0.82 in (2021) |
| December 11 | 80.1°F (1995) | 30.0°F (1985) | 0.63 in (1991) |
| December 12 | 78.1°F (1995) | 30.0°F (1985) | 1.42 in (1985) |
| December 13 | 81.0°F (2010) | 28.9°F (1985) | 0.86 in (2011) |
| December 14 | 80.1°F (1995) | 30.0°F (1985) | 0.76 in (2011) |
| December 15 | 78.1°F (2010) | 28.9°F (1992) | 0.38 in (2012) |
| December 16 | 77.0°F (2025) | 28.0°F (1992) | 0.42 in (1990) |
| December 17 | 82.9°F (1980) | 28.0°F (1992) | 0.35 in (2010) |
| December 18 | 84.0°F (1980) | 27.0°F (1996) | 1.14 in (1987) |
| December 19 | 80.1°F (1980) | 27.0°F (1996) | 0.20 in (1991) |
| December 20 | 80.1°F (2024) | 30.0°F (1990) | 0.91 in (1991) |
| December 21 | 80.1°F (2024) | 30.0°F (1990) | 0.13 in (1986) |
| December 22 | 77.0°F (2024) | 28.9°F (1990) | 0.65 in (1997) |
| December 23 | 75.9°F (1980) | 24.1°F (1990) | 0.90 in (2023) |
| December 24 | 77.0°F (1980) | 26.1°F (1990) | 0.60 in (2002) |
| December 25 | 78.1°F (1980) | 28.0°F (1993) | 1.38 in (2021) |
| December 26 | 79.0°F (1980) | 28.0°F (1987) | 1.00 in (1994) |
| December 27 | 82.0°F (1980) | 25.0°F (1987) | 0.58 in (1984) |
| December 28 | 84.0°F (1980) | 27.0°F (1988) | 1.03 in (1984) |
| December 29 | 80.1°F (1980) | 27.0°F (1988) | 0.66 in (1984) |
| December 30 | 82.9°F (1980) | 28.9°F (1988) | 0.45 in (2004) |
| December 31 | 79.0°F (1980) | 27.0°F (2010) | 0.35 in (2021) |