September weather in Stanwood, WA
The average temperature in Stanwood in September is 57.1°F (42.2°F–72.0°F). Average precipitation: 2.49 inches.
September is a fall month in Stanwood, and is warmer than the annual average of 49.1°F. Daily temperatures swing about 29.8°F between overnight low and afternoon high. Expect about 10 days with precipitation. Daylight averages about 12h 20m. For travel, September is a comfortable month to visit.
Avg High
72.0°F
Avg Low
42.2°F
Precipitation
2.49 in
Daylight
12h 20m
September records in Stanwood
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 84.9°F (2013) | 42.1°F (2018) | 0.91 in (1939) |
| September 2 | 89.1°F (2017) | 39.9°F (2018) | 1.70 in (1971) |
| September 3 | 91.9°F (2017) | 39.0°F (2018) | 0.93 in (1994) |
| September 4 | 88.0°F (2017) | 37.9°F (2018) | 0.93 in (1945) |
| September 5 | 84.9°F (2017) | 39.9°F (2015) | 2.43 in (1984) |
| September 6 | 89.1°F (2014) | 44.1°F (2018) | 0.98 in (1959) |
| September 7 | 89.1°F (2012) | 44.1°F (2020) | 1.06 in (1973) |
| September 8 | 84.9°F (2011) | 37.9°F (2016) | 1.39 in (1952) |
| September 9 | 88.0°F (2020) | 37.9°F (2016) | 1.22 in (1972) |
| September 10 | 89.1°F (2020) | 39.0°F (2014) | 1.40 in (2004) |
| September 11 | 91.0°F (2013) | 35.1°F (2014) | 1.09 in (1934) |
| September 12 | 82.0°F (2015) | 35.1°F (2014) | 0.90 in (1941) |
| September 13 | 82.9°F (2014) | 37.0°F (2014) | 1.30 in (1944) |
| September 14 | 88.0°F (2014) | 37.9°F (2017) | 1.45 in (1935) |
| September 15 | 88.0°F (2014) | 37.0°F (2017) | 1.78 in (1926) |
| September 16 | 80.1°F (2017) | 39.9°F (2015) | 1.53 in (1926) |
| September 17 | 82.0°F (2012) | 36.0°F (2018) | 2.22 in (1964) |
| September 18 | 84.9°F (2012) | 36.0°F (2018) | 1.38 in (1969) |
| September 19 | 82.9°F (2013) | 37.9°F (2018) | 1.65 in (1945) |
| September 20 | 80.1°F (2011) | 35.1°F (2016) | 1.40 in (1944) |
| September 21 | 87.1°F (2014) | 35.1°F (2015) | 1.20 in (1926) |
| September 22 | 75.9°F (2011) | 34.0°F (2015) | 0.99 in (1969) |
| September 23 | 86.0°F (2011) | 35.1°F (2015) | 1.11 in (1924) |
| September 24 | 82.0°F (2011) | 36.0°F (2018) | 1.36 in (1945) |
| September 25 | 77.0°F (2016) | 37.0°F (2018) | 0.98 in (1950) |
| September 26 | 78.1°F (2016) | 30.0°F (2015) | 1.07 in (2001) |
| September 27 | 82.0°F (2017) | 30.9°F (2015) | 0.62 in (1995) |
| September 28 | 89.1°F (2017) | 32.0°F (2015) | 1.01 in (1981) |
| September 29 | 82.9°F (2011) | 34.0°F (2016) | 1.15 in (1944) |
| September 30 | 70.0°F (2012) | 34.0°F (2016) | 1.29 in (1937) |