Arvada, Saturday, 8 August, 13:59
Overcast. Feels like 92°. High 97°, low 66°.
In December, Arvada, CO averages a high of 39.9° and a low of 17°. About 1.1 inches of precipitation fall over the month (6 wet days). The record high is 71.8° (2025) and the record low -22.4° (2013). Normals are computed over the last 60 years.
| Day | High | Low | Chance of precip. | Record high | Record low |
|---|---|---|---|---|---|
| 1 | 43° | 19° | 12% | 68.7° (2021) | 2.7° (2004) |
| 2 | 43.5° | 20.3° | 13% | 68.4° (2021) | -1.8° (2004) |
| 3 | 42.8° | 19.8° | 17% | 63.9° (2017) | -8.5° (2006) |
| 4 | 43.5° | 19.6° | 12% | 64.6° (2021) | -8.9° (2009) |
| 5 | 42.4° | 18.5° | 22% | 64.6° (2012) | -22.4° (2013) |
| 6 | 40.3° | 18.5° | 25% | 60.3° (2023) | -19.3° (1972) |
| 7 | 40.3° | 18.9° | 22% | 59.4° (1965) | -15.7° (2013) |
| 8 | 40.1° | 18° | 25% | 63° (2020) | -21.6° (1978) |
| 9 | 40.3° | 16.7° | 23% | 60.8° (1981) | -12.8° (1978) |
| 10 | 41.5° | 16.9° | 13% | 60.6° (1990) | -17.5° (1972) |
| 11 | 41.5° | 18.7° | 18% | 63.7° (2025) | -8° (1972) |
| 12 | 41.4° | 18° | 15% | 64.4° (2017) | -16.4° (1961) |
| 13 | 40.3° | 17.8° | 18% | 61.5° (2025) | -8.5° (1961) |
| 14 | 39.6° | 17.6° | 20% | 61.7° (2021) | -5.1° (1961) |
| 15 | 39.7° | 16.5° | 18% | 63.7° (2025) | -14.4° (2008) |
| 16 | 39.6° | 17.1° | 15% | 61.2° (2025) | -3.8° (1965) |
| 17 | 40.5° | 17.6° | 13% | 65.1° (1980) | -6.9° (2016) |
| 18 | 39.7° | 16.7° | 20% | 55.2° (1980) | -18.6° (2016) |
| 19 | 39.7° | 16.5° | 23% | 67.1° (2025) | -7.2° (1996) |
| 20 | 39.9° | 17.1° | 17% | 58.3° (2021) | -5.3° (1990) |
| 21 | 39.7° | 16.9° | 25% | 61° (2025) | -15.7° (1990) |
| 22 | 38.3° | 15.3° | 28% | 71.8° (2025) | -18.8° (1990) |
| 23 | 37.4° | 15.3° | 22% | 63.7° (2025) | -18° (1990) |
| 24 | 37.6° | 13.8° | 23% | 67.3° (2025) | -14.8° (1983) |
| 25 | 38.7° | 15.3° | 18% | 68.4° (2025) | -9.2° (1962) |
| 26 | 39.4° | 15.3° | 17% | 63.7° (2025) | -15.5° (1962) |
| 27 | 38.8° | 15.8° | 17% | 65.5° (1980) | -7.8° (2015) |
| 28 | 37.9° | 16.3° | 27% | 54.7° (2002) | -9.8° (2015) |
| 29 | 37.6° | 14° | 12% | 56.8° (2024) | -10.7° (1983) |
| 30 | 37.6° | 14.9° | 20% | 57° (1980) | -9.9° (1982) |
| 31 | 35.6° | 13.3° | 20% | 59.7° (2025) | -12.8° (2014) |