Fontenelle, Sunday, 9 August, 15:06
Overcast. Feels like 84°. High 87°, low 60°.
In September, Fontenelle, WY averages a high of 69.8° and a low of 44.5°. About 0.8 inches of precipitation fall over the month (4 wet days). The record high is 93.4° (2022) and the record low 6.8° (1965). Normals are computed over the last 60 years.
| Day | High | Low | Chance of precip. | Record high | Record low |
|---|---|---|---|---|---|
| 1 | 76.8° | 49.6° | 8% | 89.8° (2022) | 39° (1980) |
| 2 | 75.9° | 49.6° | 17% | 89.2° (2019) | 36.3° (1973) |
| 3 | 76.6° | 49.6° | 12% | 88.2° (2022) | 33.8° (1964) |
| 4 | 76.6° | 49.5° | 12% | 93.4° (2022) | 36° (1968) |
| 5 | 75.7° | 49.5° | 7% | 91.8° (2022) | 36.3° (1968) |
| 6 | 74.8° | 48.7° | 10% | 90.3° (2022) | 38.8° (1996) |
| 7 | 74.1° | 48.4° | 13% | 92.1° (2022) | 36° (1992) |
| 8 | 73.2° | 48° | 15% | 85.1° (1979) | 32.5° (2020) |
| 9 | 73.2° | 47.1° | 15% | 87.6° (2021) | 29.7° (2020) |
| 10 | 72.3° | 47.3° | 8% | 84.7° (2021) | 35.1° (1970) |
| 11 | 70.5° | 46.9° | 17% | 83.7° (1990) | 33.8° (2010) |
| 12 | 68.9° | 45.7° | 18% | 86.7° (1990) | 26.6° (2014) |
| 13 | 69.4° | 43.3° | 13% | 84.9° (1990) | 31.8° (1974) |
| 14 | 69.1° | 45° | 22% | 84.2° (1990) | 30.7° (1961) |
| 15 | 69.6° | 44.1° | 17% | 86° (2000) | 31.3° (1970) |
| 16 | 69.3° | 44.2° | 10% | 84.4° (2000) | 25.7° (1965) |
| 17 | 68.4° | 43.7° | 17% | 81.1° (2010) | 19.6° (1965) |
| 18 | 67.6° | 42.8° | 15% | 81.9° (2014) | 8.1° (1965) |
| 19 | 67.5° | 43° | 17% | 84° (2010) | 11.5° (1965) |
| 20 | 65.1° | 42.1° | 15% | 79.3° (2016) | 6.8° (1965) |
| 21 | 64.4° | 40.8° | 20% | 77° (1966) | 17.2° (1965) |
| 22 | 65.1° | 40.3° | 23% | 79° (1966) | 26.1° (1965) |
| 23 | 65.7° | 40.6° | 12% | 79.7° (1966) | 25.7° (2000) |
| 24 | 65.7° | 40.6° | 17% | 80.2° (2020) | 18.1° (2000) |
| 25 | 65.8° | 40.5° | 13% | 81.5° (2024) | 15.6° (2000) |
| 26 | 66.4° | 40.5° | 7% | 81.7° (2015) | 20.1° (2000) |
| 27 | 66.2° | 41° | 7% | 80.6° (2010) | 24.4° (1996) |
| 28 | 66.4° | 40.8° | 8% | 83.3° (2010) | 26.6° (1985) |
| 29 | 66.6° | 41° | 17% | 83.5° (2024) | 21° (1985) |
| 30 | 65.5° | 41° | 12% | 76.8° (1963) | 25° (1985) |