September weather in Colton, WA
The average temperature in Colton in September is 59.8°F (45.4°F–74.2°F). Average precipitation: 0.65 inches.
September is a fall month in Colton, and is warmer than the annual average of 48.6°F. Daily temperatures swing about 28.8°F between overnight low and afternoon high. Expect about 5 days with precipitation. Daylight averages about 12h 19m. For travel, September is a comfortable month to visit.
Avg High
74.2°F
Avg Low
45.4°F
Precipitation
0.65 in
Daylight
12h 19m
September records in Colton
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 98.1°F (2025) | 35.1°F (1999) | 0.05 in (2000) |
| September 2 | 97.0°F (2025) | 30.0°F (1999) | 0.24 in (2000) |
| September 3 | 96.1°F (1998) | 33.1°F (2011) | 0.04 in (2022) |
| September 4 | 96.1°F (2020) | 35.1°F (2016) | 0.00 in (1998) |
| September 5 | 91.9°F (1998) | 37.9°F (2012) | 0.39 in (2015) |
| September 6 | 93.0°F (1998) | 36.0°F (2002) | 0.17 in (2019) |
| September 7 | 95.0°F (2024) | 33.1°F (1999) | 0.38 in (2003) |
| September 8 | 93.9°F (2011) | 34.0°F (2007) | 0.44 in (2003) |
| September 9 | 91.0°F (2011) | 34.0°F (2007) | 0.04 in (2019) |
| September 10 | 93.0°F (2011) | 37.0°F (2005) | 0.80 in (2000) |
| September 11 | 95.0°F (2013) | 32.0°F (2012) | 0.79 in (2024) |
| September 12 | 91.9°F (2013) | 28.2°F (2012) | 0.37 in (2024) |
| September 13 | 90.0°F (2013) | 32.0°F (2016) | 0.15 in (2004) |
| September 14 | 93.0°F (2000) | 32.0°F (2006) | 0.25 in (2025) |
| September 15 | 93.0°F (1998) | 28.2°F (2006) | 0.22 in (2013) |
| September 16 | 91.0°F (2009) | 34.0°F (2017) | 0.10 in (2002) |
| September 17 | 91.9°F (2008) | 32.0°F (2006) | 0.29 in (2015) |
| September 18 | 86.0°F (2008) | 37.9°F (2002) | 0.29 in (2021) |
| September 19 | 91.9°F (2008) | 32.0°F (2018) | 0.88 in (1998) |
| September 20 | 86.0°F (2014) | 30.2°F (2007) | 0.21 in (2000) |
| September 21 | 88.0°F (2014) | 27.0°F (2002) | 0.18 in (2008) |
| September 22 | 84.9°F (1999) | 28.9°F (2000) | 0.46 in (2022) |
| September 23 | 93.0°F (2001) | 21.0°F (2000) | 0.10 in (2002) |
| September 24 | 95.0°F (2011) | 27.0°F (2005) | 0.42 in (2013) |
| September 25 | 87.1°F (2024) | 33.1°F (2002) | 0.26 in (2013) |
| September 26 | 86.0°F (2016) | 33.1°F (2015) | 0.32 in (2023) |
| September 27 | 89.1°F (2022) | 27.1°F (2015) | 0.25 in (2001) |
| September 28 | 86.0°F (2024) | 29.1°F (2015) | 0.47 in (2013) |
| September 29 | 82.9°F (2020) | 31.1°F (2019) | 1.25 in (2022) |
| September 30 | 84.9°F (2008) | 28.2°F (2024) | 0.33 in (2005) |