September weather in Georgetown, ID
The average temperature in Georgetown in September is °F (°F–°F). Average precipitation: 1.76 inches.
September is a fall month in Georgetown, and is cooler than the annual average of 0°F. Expect about 7 days with precipitation. Daylight averages about 12h 16m.
Avg High
°F
Avg Low
°F
Precipitation
1.76 in
Daylight
12h 16m
September records in Georgetown
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 87.8°F (2022) | 28.2°F (2020) | 0.40 in (1985) |
| September 2 | 85.8°F (2022) | 27.1°F (2008) | 0.50 in (2013) |
| September 3 | 90.7°F (2022) | 30.7°F (2000) | 0.80 in (2023) |
| September 4 | 88.3°F (2017) | 28.9°F (1989) | 0.90 in (2007) |
| September 5 | 87.6°F (2022) | 26.4°F (1996) | 0.90 in (2019) |
| September 6 | 91.9°F (2022) | 23.9°F (1996) | 0.80 in (2013) |
| September 7 | 92.8°F (2022) | 25.0°F (1992) | 0.60 in (2002) |
| September 8 | 85.8°F (2021) | 23.2°F (2001) | 0.50 in (1991) |
| September 9 | 86.9°F (2021) | 23.0°F (2020) | 0.60 in (1986) |
| September 10 | 82.6°F (2021) | 26.2°F (2007) | 1.00 in (1982) |
| September 11 | 82.6°F (1990) | 25.2°F (2014) | 1.20 in (1985) |
| September 12 | 83.3°F (1990) | 25.7°F (2003) | 0.60 in (2021) |
| September 13 | 80.1°F (2015) | 23.5°F (2003) | 0.40 in (2016) |
| September 14 | 82.8°F (1990) | 21.7°F (1993) | 0.50 in (2016) |
| September 15 | 84.7°F (2000) | 24.4°F (1991) | 0.80 in (2006) |
| September 16 | 81.0°F (1995) | 27.7°F (2017) | 1.00 in (2015) |
| September 17 | 81.0°F (2020) | 23.2°F (2003) | 1.20 in (2024) |
| September 18 | 79.5°F (2014) | 21.0°F (2003) | 0.70 in (2014) |
| September 19 | 79.2°F (2010) | 25.0°F (2003) | 0.90 in (1990) |
| September 20 | 77.7°F (2016) | 20.1°F (1995) | 0.90 in (1997) |
| September 21 | 78.1°F (2001) | 17.8°F (1995) | 0.80 in (2006) |
| September 22 | 78.6°F (2015) | 20.7°F (1995) | 1.00 in (2016) |
| September 23 | 78.8°F (2001) | 18.1°F (1996) | 1.30 in (1984) |
| September 24 | 82.2°F (2001) | 16.5°F (2000) | 0.80 in (1986) |
| September 25 | 82.8°F (2015) | 23.7°F (2018) | 1.50 in (1982) |
| September 26 | 80.2°F (2010) | 20.3°F (1996) | 1.00 in (1982) |
| September 27 | 80.6°F (2010) | 17.8°F (1996) | 1.30 in (1982) |
| September 28 | 82.4°F (2010) | 13.6°F (1999) | 2.00 in (2019) |
| September 29 | 80.2°F (2010) | 23.5°F (2021) | 0.70 in (2014) |
| September 30 | 80.2°F (2011) | 21.0°F (2019) | 0.60 in (2009) |