St. George, Sunday, 9 August, 06:24
Mostly clear. Feels like 84°. High 112°, low 84°.
In September, St. George, UT averages a high of 88.9° and a low of 66.6°. About 0.8 inches of precipitation fall over the month (3 wet days). The record high is 114.3° (2022) and the record low 40.1° (1965). Normals are computed over the last 60 years.
| Day | High | Low | Chance of precip. | Record high | Record low |
|---|---|---|---|---|---|
| 1 | 94.1° | 73.2° | 18% | 108.9° (2022) | 58.8° (1966) |
| 2 | 94.3° | 72.5° | 2% | 110.3° (2022) | 54.9° (2008) |
| 3 | 94.6° | 72.7° | 3% | 108.1° (2022) | 55.9° (1973) |
| 4 | 94.1° | 72.1° | 13% | 107.8° (2020) | 55.2° (1971) |
| 5 | 93.2° | 72° | 15% | 110.1° (2020) | 59.2° (1961) |
| 6 | 92.5° | 71.4° | 17% | 114.3° (2022) | 56.1° (1970) |
| 7 | 92.3° | 70.9° | 13% | 109.2° (2020) | 57.9° (1970) |
| 8 | 91.8° | 70.7° | 12% | 106.5° (2021) | 57.6° (1991) |
| 9 | 91° | 69.8° | 13% | 101.7° (2018) | 54.7° (1962) |
| 10 | 90.1° | 68.9° | 12% | 101.3° (2021) | 56.7° (1961) |
| 11 | 89.2° | 68.2° | 22% | 99.9° (1990) | 55.9° (1986) |
| 12 | 89.1° | 66.7° | 10% | 100.2° (1971) | 55.6° (1978) |
| 13 | 89.1° | 66.2° | 13% | 100.6° (2021) | 52.5° (1985) |
| 14 | 88° | 65.7° | 10% | 100° (2021) | 51.6° (1993) |
| 15 | 88.5° | 65.8° | 7% | 101.7° (2018) | 56.8° (2016) |
| 16 | 88.5° | 66.4° | 3% | 100.4° (2020) | 53.2° (1970) |
| 17 | 88.2° | 66.2° | 3% | 100.9° (2020) | 46.2° (1965) |
| 18 | 87.3° | 65.1° | 8% | 99.9° (2020) | 40.1° (1965) |
| 19 | 86.9° | 64° | 15% | 97.3° (2020) | 42.8° (1965) |
| 20 | 86.5° | 64° | 2% | 95.9° (2020) | 41.5° (1978) |
| 21 | 86° | 63.1° | 7% | 95.7° (2020) | 43.5° (1978) |
| 22 | 85.6° | 62.8° | 8% | 95.7° (1966) | 48.4° (1968) |
| 23 | 85.5° | 62.4° | 8% | 97.7° (2001) | 47.3° (1968) |
| 24 | 86° | 62.6° | 8% | 97.3° (2020) | 45.5° (2000) |
| 25 | 86.4° | 62.2° | 7% | 99.3° (2024) | 46.8° (1970) |
| 26 | 86.4° | 62.8° | 7% | 99.7° (2024) | 46° (1970) |
| 27 | 86° | 63.1° | 5% | 102.4° (2024) | 48.9° (1986) |
| 28 | 85.6° | 62.4° | 8% | 103.1° (2024) | 46.8° (2013) |
| 29 | 85.3° | 61.9° | 8% | 100.2° (2024) | 46.4° (1986) |
| 30 | 84.6° | 61.2° | 12% | 102° (2024) | 42.3° (2007) |