September weather in Granite, OR
The average temperature in Granite in September is °F (°F–°F). Average precipitation: 0.74 inches.
September is a fall month in Granite, and is cooler than the annual average of 0°F. Expect about 3 days with precipitation. Daylight averages about 12h 18m.
Avg High
°F
Avg Low
°F
Precipitation
0.74 in
Daylight
12h 18m
September records in Granite
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 91.8°F (1998) | 27.0°F (1999) | 0.90 in (1982) |
| September 2 | 92.5°F (2017) | 26.2°F (1999) | 0.40 in (1994) |
| September 3 | 96.4°F (2017) | 28.6°F (2000) | 0.20 in (1994) |
| September 4 | 92.7°F (1998) | 30.6°F (2015) | 0.50 in (2013) |
| September 5 | 90.9°F (2017) | 32.0°F (1988) | 0.30 in (2015) |
| September 6 | 94.3°F (2022) | 28.9°F (1992) | 0.20 in (2003) |
| September 7 | 86.5°F (2024) | 25.9°F (1992) | 0.60 in (1998) |
| September 8 | 85.8°F (2005) | 27.5°F (2002) | 0.30 in (1985) |
| September 9 | 86.7°F (2021) | 29.1°F (2000) | 0.70 in (1998) |
| September 10 | 86.5°F (1990) | 28.8°F (1989) | 0.40 in (2025) |
| September 11 | 85.6°F (2015) | 29.7°F (1994) | 0.60 in (2021) |
| September 12 | 87.4°F (2015) | 30.2°F (1989) | 0.20 in (1992) |
| September 13 | 84.4°F (2002) | 27.7°F (2003) | 0.70 in (2001) |
| September 14 | 87.6°F (2000) | 30.2°F (2016) | 0.40 in (1996) |
| September 15 | 86.4°F (1995) | 29.7°F (2006) | 0.20 in (2024) |
| September 16 | 83.8°F (2008) | 28.8°F (2017) | 0.20 in (1989) |
| September 17 | 82.0°F (2008) | 30.0°F (1988) | 0.50 in (1986) |
| September 18 | 80.2°F (2012) | 26.1°F (1988) | 0.50 in (1989) |
| September 19 | 80.6°F (1991) | 29.1°F (1989) | 0.20 in (1986) |
| September 20 | 81.0°F (2012) | 28.0°F (1993) | 0.40 in (2006) |
| September 21 | 81.1°F (2012) | -32.6°F (1988) | 0.10 in (2004) |
| September 22 | 81.5°F (2009) | -32.6°F (1988) | 0.40 in (2014) |
| September 23 | 85.1°F (2009) | 19.6°F (2000) | 0.40 in (1982) |
| September 24 | 86.5°F (2009) | -32.6°F (1988) | 0.30 in (1986) |
| September 25 | 83.1°F (1994) | 26.4°F (2005) | 0.60 in (1982) |
| September 26 | 82.9°F (2003) | 27.3°F (1999) | 0.30 in (1983) |
| September 27 | 85.8°F (1994) | 20.1°F (1999) | 0.30 in (1986) |
| September 28 | 84.0°F (2003) | -32.6°F (1988) | 0.50 in (2020) |
| September 29 | 79.7°F (1993) | -32.6°F (1988) | 1.70 in (2013) |
| September 30 | 79.2°F (2010) | -32.6°F (1988) | 0.30 in (1997) |