September weather in Ridgefield, WA
The average temperature in Ridgefield in September is 63.0°F (49.8°F–76.3°F). Average precipitation: 1.56 inches.
September is a fall month in Ridgefield, and is warmer than the annual average of 53°F. Daily temperatures swing about 26.5°F between overnight low and afternoon high. Expect about 8 days with precipitation. Daylight averages about 12h 18m. For travel, September is a comfortable month to visit.
Avg High
76.3°F
Avg Low
49.8°F
Precipitation
1.56 in
Daylight
12h 18m
September records in Ridgefield
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 93.9°F (1998) | -0.8°F (2006) | 0.12 in (2000) |
| September 2 | 99.0°F (2017) | 0.1°F (2006) | 0.39 in (2000) |
| September 3 | 96.1°F (2017) | 44.1°F (2015) | 0.39 in (2013) |
| September 4 | 93.0°F (2003) | 42.1°F (2002) | 0.13 in (2007) |
| September 5 | 93.0°F (2003) | 43.0°F (2002) | 0.67 in (2013) |
| September 6 | 97.0°F (2014) | 43.0°F (2010) | 0.90 in (2013) |
| September 7 | 95.0°F (2011) | 42.1°F (1999) | 0.41 in (2010) |
| September 8 | 90.0°F (1999) | 39.0°F (2002) | 0.53 in (2019) |
| September 9 | 91.9°F (2020) | 44.1°F (1998) | 0.72 in (2003) |
| September 10 | 93.0°F (2007) | 42.1°F (1999) | 0.44 in (2019) |
| September 11 | 98.1°F (2013) | 39.9°F (2012) | 0.21 in (2004) |
| September 12 | 89.1°F (2015) | 44.1°F (2010) | 0.07 in (2019) |
| September 13 | 90.0°F (2012) | 42.1°F (2016) | 0.17 in (2004) |
| September 14 | 93.9°F (2023) | 43.0°F (2015) | 0.31 in (2006) |
| September 15 | 97.0°F (2023) | 30.2°F (2008) | 1.21 in (2019) |
| September 16 | 91.0°F (2025) | 39.0°F (2006) | 0.25 in (2018) |
| September 17 | 91.0°F (2012) | 39.9°F (2005) | 0.68 in (2019) |
| September 18 | 90.0°F (1999) | 39.0°F (2007) | 2.28 in (2021) |
| September 19 | 93.0°F (1999) | 41.0°F (2005) | 0.43 in (2017) |
| September 20 | 95.0°F (2014) | 41.0°F (2003) | 0.57 in (2017) |
| September 21 | 88.0°F (2014) | 42.1°F (2004) | 0.22 in (2000) |
| September 22 | 91.9°F (2009) | 37.9°F (2000) | 0.37 in (2013) |
| September 23 | 88.0°F (2002) | 33.1°F (2000) | 1.03 in (2020) |
| September 24 | 90.0°F (2021) | 35.1°F (2005) | 0.47 in (2013) |
| September 25 | 89.1°F (2022) | 37.9°F (2005) | 0.97 in (2023) |
| September 26 | 89.1°F (2016) | 39.0°F (2013) | 0.15 in (2011) |
| September 27 | 96.1°F (2003) | 33.1°F (1999) | 0.29 in (2023) |
| September 28 | 88.0°F (2017) | -0.8°F (2008) | 1.66 in (2013) |
| September 29 | 91.9°F (2008) | -0.8°F (2008) | 1.56 in (2013) |
| September 30 | 82.9°F (2020) | 35.1°F (2019) | 1.04 in (2005) |