Arvada, Saturday, 8 August, 14:59
Overcast. Feels like 92°. High 96°, low 66°.
In September, Arvada, CO averages a high of 74° and a low of 48.4°. About 2.3 inches of precipitation fall over the month (11 wet days). The record high is 95.7° (2020) and the record low 11.8° (1995). Normals are computed over the last 60 years.
| Day | High | Low | Chance of precip. | Record high | Record low |
|---|---|---|---|---|---|
| 1 | 79.3° | 53.2° | 40% | 93.4° (2023) | 42.1° (1965) |
| 2 | 79.2° | 53.2° | 45% | 95.4° (2019) | 40.5° (1974) |
| 3 | 79.3° | 53.2° | 40% | 91.2° (2017) | 35.4° (1961) |
| 4 | 79.2° | 52.9° | 23% | 91.4° (2022) | 36.3° (1961) |
| 5 | 79.3° | 53.1° | 33% | 95.7° (2020) | 41.9° (1968) |
| 6 | 79° | 52.5° | 38% | 95.2° (2020) | 42.8° (1968) |
| 7 | 77.5° | 52.5° | 45% | 93° (2022) | 43.7° (1961) |
| 8 | 77.2° | 50.9° | 43% | 95° (2022) | 31.3° (2020) |
| 9 | 76.1° | 50.9° | 45% | 91.4° (2021) | 30° (2020) |
| 10 | 75.9° | 50.7° | 55% | 93.6° (2021) | 26.1° (2020) |
| 11 | 74.5° | 50.7° | 50% | 93.4° (2021) | 32.5° (2020) |
| 12 | 73° | 49.6° | 52% | 91.2° (2018) | 33.8° (2014) |
| 13 | 73° | 48.6° | 52% | 90.9° (2018) | 32.7° (1993) |
| 14 | 72.9° | 48° | 47% | 88.3° (2018) | 26.4° (1993) |
| 15 | 73.4° | 48.6° | 42% | 90.1° (2018) | 33.4° (1993) |
| 16 | 73.9° | 48° | 37% | 89.1° (2018) | 32° (1965) |
| 17 | 73.6° | 47.7° | 33% | 88.2° (2000) | 28.8° (1965) |
| 18 | 73.4° | 46.9° | 25% | 87.4° (2021) | 28° (1971) |
| 19 | 73.4° | 47.5° | 30% | 88° (2010) | 16° (1971) |
| 20 | 71.8° | 46.8° | 37% | 87.8° (2022) | 24.4° (1971) |
| 21 | 70° | 45.9° | 48% | 83.7° (2015) | 21° (1965) |
| 22 | 68.9° | 44.1° | 40% | 84° (2007) | 11.8° (1995) |
| 23 | 70.3° | 45° | 28% | 83.1° (2018) | 17.4° (1971) |
| 24 | 70.2° | 45° | 33% | 85.5° (2020) | 22.8° (1971) |
| 25 | 70.5° | 43.9° | 27% | 86.4° (2020) | 20.1° (2000) |
| 26 | 72.1° | 44.4° | 25% | 88.9° (2024) | 16.3° (1970) |
| 27 | 70.9° | 44.4° | 27% | 84.7° (2023) | 20.1° (1996) |
| 28 | 69.6° | 44.1° | 28% | 86° (2024) | 28.4° (1970) |
| 29 | 71.1° | 44.6° | 23% | 86.5° (2024) | 13.1° (1999) |
| 30 | 70° | 44.2° | 23% | 85.8° (2023) | 12° (1985) |