Surprise, Sunday, 9 August, 03:14
Overcast. Feels like 92°. High 113°, low 90°.
In December, Surprise, AZ averages a high of 62.8° and a low of 41.9°. About 1.3 inches of precipitation fall over the month (4 wet days). The record high is 81.5° (2021) and the record low 21.2° (1990). Normals are computed over the last 60 years.
| Day | High | Low | Chance of precip. | Record high | Record low |
|---|---|---|---|---|---|
| 1 | 65.7° | 43.5° | 7% | 81.5° (2021) | 31.5° (2004) |
| 2 | 65.8° | 43.9° | 7% | 80.1° (2021) | 29.1° (1991) |
| 3 | 66.2° | 44.1° | 8% | 78.8° (2021) | 31.5° (1968) |
| 4 | 65.7° | 44.1° | 15% | 77.7° (1979) | 33.3° (1973) |
| 5 | 65.7° | 44.6° | 10% | 77.2° (2012) | 33.8° (1971) |
| 6 | 65.5° | 43.9° | 15% | 78.4° (2023) | 28.8° (2011) |
| 7 | 64.9° | 44.2° | 13% | 77.7° (2020) | 25.5° (1960) |
| 8 | 64.2° | 43.5° | 18% | 78.8° (1996) | 22.8° (1978) |
| 9 | 64.4° | 42.8° | 8% | 77.7° (1975) | 25.2° (1978) |
| 10 | 64.2° | 42.6° | 8% | 79° (2017) | 28.9° (1978) |
| 11 | 63.7° | 43° | 13% | 76.1° (2010) | 30.2° (1972) |
| 12 | 63.5° | 42.6° | 12% | 77.9° (2010) | 27.5° (1972) |
| 13 | 62.6° | 41.5° | 15% | 76.3° (2010) | 29.5° (2001) |
| 14 | 62.2° | 40.6° | 8% | 78.3° (2025) | 28° (1972) |
| 15 | 62.4° | 40.5° | 8% | 78.4° (2025) | 28.4° (1987) |
| 16 | 63.5° | 41.2° | 8% | 77.4° (2023) | 28.9° (2015) |
| 17 | 63.1° | 41.5° | 12% | 75.9° (1998) | 28.2° (1971) |
| 18 | 63° | 41.7° | 10% | 79° (2024) | 29.8° (1996) |
| 19 | 62.8° | 41.9° | 12% | 77.7° (2024) | 28.9° (1965) |
| 20 | 62.6° | 41.5° | 17% | 77° (2024) | 30.9° (1992) |
| 21 | 61.7° | 41.5° | 10% | 75.9° (2025) | 26.1° (1967) |
| 22 | 60.6° | 41.7° | 20% | 78.3° (2025) | 24.1° (1968) |
| 23 | 61.2° | 40.8° | 12% | 74.3° (2005) | 21.2° (1990) |
| 24 | 61.5° | 40.5° | 8% | 76.1° (2005) | 25.9° (1990) |
| 25 | 61.3° | 40.5° | 12% | 73.8° (1989) | 28° (1987) |
| 26 | 60.3° | 40.6° | 18% | 75° (1980) | 28.6° (1987) |
| 27 | 59.7° | 40.1° | 7% | 75° (1980) | 25.7° (1988) |
| 28 | 59.5° | 39.9° | 15% | 73.9° (1980) | 27.7° (2003) |
| 29 | 59.9° | 40.5° | 27% | 79° (1980) | 26.2° (1988) |
| 30 | 59.9° | 40.1° | 13% | 77.7° (1980) | 27.3° (1988) |
| 31 | 60.1° | 40.1° | 8% | 73.8° (1980) | 28.9° (1966) |