September weather in Georgetown, TX
The average temperature in Georgetown in September is 78.3°F (66.5°F–90.1°F). Average precipitation: 3.96 inches.
September is a fall month in Georgetown, and is warmer than the annual average of 67.1°F. Daily temperatures swing about 23.6°F between overnight low and afternoon high. Expect about 6 days with precipitation. Daylight averages about 12h 11m. For travel, September is hot.
Avg High
90.1°F
Avg Low
66.5°F
Precipitation
3.96 in
Daylight
12h 11m
September records in Georgetown
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 107.1°F (2000) | 61.0°F (1993) | 1.66 in (1996) |
| September 2 | 108.0°F (2000) | 43.0°F (1995) | 1.34 in (1981) |
| September 3 | 107.1°F (2000) | 43.0°F (1995) | 1.20 in (2010) |
| September 4 | 108.0°F (2000) | 10.0°F (1995) | 1.85 in (1997) |
| September 5 | 111.0°F (2000) | 27.0°F (1995) | 2.87 in (2007) |
| September 6 | 111.0°F (2000) | 53.1°F (1988) | 1.47 in (1986) |
| September 7 | 102.0°F (2023) | 43.0°F (1995) | 1.84 in (2018) |
| September 8 | 106.0°F (2023) | 51.1°F (1994) | 14.57 in (2010) |
| September 9 | 102.0°F (2023) | 50.0°F (2022) | 0.76 in (2018) |
| September 10 | 99.0°F (1984) | 41.0°F (1988) | 1.50 in (2008) |
| September 11 | 99.0°F (2000) | 52.0°F (2000) | 1.73 in (1992) |
| September 12 | 102.0°F (2000) | 60.1°F (2017) | 3.81 in (2009) |
| September 13 | 105.1°F (2011) | 57.9°F (2014) | 4.79 in (2009) |
| September 14 | 105.1°F (2011) | 55.9°F (1989) | 3.35 in (2012) |
| September 15 | 100.9°F (2011) | 24.1°F (1995) | 0.78 in (1991) |
| September 16 | 99.0°F (2013) | 24.1°F (1995) | 1.02 in (1987) |
| September 17 | 97.0°F (1995) | 23.0°F (1995) | 1.95 in (1990) |
| September 18 | 100.9°F (1995) | -11.9°F (1995) | 2.14 in (2014) |
| September 19 | 97.0°F (1982) | -16.1°F (1995) | 4.60 in (1996) |
| September 20 | 98.1°F (2005) | -26.0°F (1995) | 2.50 in (1996) |
| September 21 | 102.0°F (1999) | -50.1°F (1995) | 1.57 in (2013) |
| September 22 | 99.0°F (2021) | 34.0°F (1983) | 2.25 in (2018) |
| September 23 | 100.9°F (2023) | 42.1°F (1983) | 0.45 in (1997) |
| September 24 | 102.9°F (2023) | 46.9°F (1983) | 0.28 in (1998) |
| September 25 | 102.9°F (2023) | 45.0°F (1989) | 2.20 in (2000) |
| September 26 | 105.1°F (2011) | 45.0°F (2000) | 0.90 in (2016) |
| September 27 | 105.1°F (2005) | 48.0°F (1993) | 0.45 in (1996) |
| September 28 | 105.1°F (2005) | 45.0°F (1996) | 0.19 in (2017) |
| September 29 | 99.0°F (2011) | 50.0°F (1996) | 1.80 in (2021) |
| September 30 | 102.0°F (2011) | 45.0°F (1984) | 1.53 in (1985) |