September weather in Shelton, WA
The average temperature in Shelton in September is 60.5°F (47.5°F–73.5°F). Average precipitation: 2.50 inches.
September is a fall month in Shelton, and is warmer than the annual average of 51.4°F. Daily temperatures swing about 26°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 12h 19m. For travel, September is a comfortable month to visit.
Avg High
73.5°F
Avg Low
47.5°F
Precipitation
2.50 in
Daylight
12h 19m
September records in Shelton
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 90.0°F (1998) | 36.0°F (2021) | 0.54 in (2016) |
| September 2 | 93.9°F (2006) | 37.9°F (1999) | 0.15 in (2000) |
| September 3 | 95.0°F (2017) | 37.9°F (2011) | 0.55 in (2013) |
| September 4 | 91.9°F (2003) | 37.9°F (2002) | 0.24 in (2007) |
| September 5 | 97.0°F (2024) | 37.9°F (2002) | 1.13 in (2013) |
| September 6 | 93.0°F (2014) | 39.0°F (2005) | 0.78 in (2009) |
| September 7 | 91.9°F (2012) | 39.0°F (1999) | 0.20 in (2009) |
| September 8 | 89.1°F (2011) | 39.9°F (2001) | 0.48 in (2019) |
| September 9 | 93.0°F (2020) | 39.0°F (2007) | 0.83 in (2005) |
| September 10 | 93.0°F (2020) | 39.0°F (2006) | 0.86 in (2004) |
| September 11 | 93.9°F (2013) | 35.1°F (2012) | 0.89 in (2024) |
| September 12 | 84.9°F (1999) | 32.0°F (2012) | 0.41 in (2019) |
| September 13 | 89.1°F (1999) | 35.1°F (2012) | 0.44 in (2004) |
| September 14 | 88.0°F (1999) | 37.9°F (2014) | 0.70 in (2004) |
| September 15 | 90.0°F (2014) | 36.0°F (2017) | 0.77 in (2019) |
| September 16 | 89.1°F (2025) | 32.0°F (2021) | 0.55 in (2010) |
| September 17 | 84.0°F (2012) | 39.9°F (2012) | 1.54 in (2021) |
| September 18 | 86.0°F (2012) | 35.1°F (2018) | 1.27 in (2021) |
| September 19 | 87.1°F (1999) | 39.0°F (2022) | 0.35 in (2017) |
| September 20 | 86.0°F (1999) | 36.0°F (2011) | 0.45 in (2006) |
| September 21 | 84.0°F (1999) | 33.1°F (2023) | 0.86 in (2025) |
| September 22 | 89.1°F (2009) | 34.0°F (2005) | 1.34 in (2013) |
| September 23 | 81.0°F (2002) | 32.0°F (2008) | 1.42 in (2020) |
| September 24 | 82.0°F (2003) | 32.0°F (2005) | 0.74 in (2023) |
| September 25 | 84.0°F (2022) | 35.1°F (2005) | 1.54 in (2020) |
| September 26 | 89.1°F (2022) | 34.0°F (2005) | 2.75 in (2011) |
| September 27 | 91.0°F (2003) | 33.1°F (2015) | 0.72 in (2021) |
| September 28 | 87.1°F (2017) | 32.0°F (1999) | 2.20 in (2013) |
| September 29 | 82.9°F (2008) | 34.0°F (1999) | 1.36 in (2005) |
| September 30 | 77.0°F (2020) | 31.1°F (2023) | 1.03 in (2000) |