September weather in Junction, TX
The average temperature in Junction in September is 76.6°F (64.3°F–88.9°F). Average precipitation: 2.41 inches.
September is a fall month in Junction, and is warmer than the annual average of 66.5°F. Daily temperatures swing about 24.6°F between overnight low and afternoon high. Expect about 6 days with precipitation. Daylight averages about 12h 10m. For travel, September is hot.
Avg High
88.9°F
Avg Low
64.3°F
Precipitation
2.41 in
Daylight
12h 10m
September records in Junction
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 105.1°F (1952) | 54.0°F (1950) | 0.45 in (1953) |
| September 2 | 102.0°F (1951) | 55.9°F (1948) | 1.65 in (2024) |
| September 3 | 102.9°F (2000) | 55.9°F (1948) | 1.24 in (2024) |
| September 4 | 104.0°F (2000) | 55.9°F (2010) | 1.69 in (2007) |
| September 5 | 107.1°F (2000) | 48.9°F (1952) | 0.77 in (2006) |
| September 6 | 104.0°F (2012) | 45.0°F (2011) | 0.61 in (1954) |
| September 7 | 105.1°F (2012) | 46.9°F (2011) | 1.60 in (2025) |
| September 8 | 106.0°F (2023) | 48.9°F (1957) | 1.19 in (1948) |
| September 9 | 104.0°F (2023) | 46.0°F (1956) | 1.40 in (2020) |
| September 10 | 100.9°F (2023) | 50.0°F (2024) | 0.91 in (1954) |
| September 11 | 100.9°F (2000) | 48.9°F (1968) | 2.26 in (2003) |
| September 12 | 100.0°F (2000) | 43.0°F (1959) | 2.44 in (2009) |
| September 13 | 100.9°F (2011) | 48.0°F (1968) | 0.89 in (2012) |
| September 14 | 102.0°F (2017) | 55.0°F (1960) | 0.63 in (2023) |
| September 15 | 100.0°F (2017) | 52.0°F (1959) | 2.14 in (2018) |
| September 16 | 99.0°F (1962) | 48.0°F (1951) | 1.90 in (1998) |
| September 17 | 98.1°F (1952) | 41.0°F (1951) | 0.52 in (2006) |
| September 18 | 100.9°F (2019) | 39.0°F (1951) | 0.95 in (1966) |
| September 19 | 100.9°F (2019) | 46.0°F (1951) | 0.60 in (1967) |
| September 20 | 100.9°F (1956) | 51.1°F (2002) | 2.66 in (1964) |
| September 21 | 99.0°F (1956) | 53.1°F (2002) | 0.63 in (1957) |
| September 22 | 99.0°F (2005) | 46.0°F (1954) | 0.86 in (1948) |
| September 23 | 100.9°F (2023) | 41.0°F (1999) | 1.52 in (1964) |
| September 24 | 102.9°F (2023) | 48.9°F (1954) | 2.47 in (2000) |
| September 25 | 106.0°F (2005) | 45.0°F (2000) | 2.75 in (2016) |
| September 26 | 107.1°F (2005) | 39.9°F (2000) | 0.86 in (1962) |
| September 27 | 106.0°F (1953) | 43.0°F (2000) | 1.51 in (2017) |
| September 28 | 104.0°F (2005) | 39.9°F (1967) | 0.84 in (2017) |
| September 29 | 98.1°F (1953) | 39.0°F (2020) | 0.82 in (2012) |
| September 30 | 95.0°F (2024) | 41.0°F (2020) | 1.18 in (2021) |