September weather in Dorchester, NE
The average temperature in Dorchester in September is 64.7°F (52.1°F–77.2°F). Average precipitation: 2.84 inches.
September is a fall month in Dorchester, and is warmer than the annual average of 49.6°F. Daily temperatures swing about 25.1°F between overnight low and afternoon high. Expect about 8 days with precipitation. Daylight averages about 12h 15m. For travel, September is one of the best months of the year to visit.
Avg High
77.2°F
Avg Low
52.1°F
Precipitation
2.84 in
Daylight
12h 15m
September records in Dorchester
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 96.1°F (2012) | 44.1°F (2009) | 5.65 in (2025) |
| September 2 | 93.9°F (1947) | 48.0°F (1946) | 1.77 in (2018) |
| September 3 | 98.1°F (2012) | 46.9°F (2008) | 4.37 in (1973) |
| September 4 | 95.0°F (1945) | 45.0°F (2025) | 3.31 in (1989) |
| September 5 | 100.9°F (2012) | 45.0°F (2025) | 1.75 in (1956) |
| September 6 | 96.1°F (1947) | 45.0°F (2011) | 2.11 in (1986) |
| September 7 | 100.9°F (1947) | 45.0°F (2010) | 5.29 in (1941) |
| September 8 | 100.0°F (1947) | 44.1°F (1943) | 2.15 in (1948) |
| September 9 | 96.1°F (2013) | 39.9°F (2008) | 2.75 in (1989) |
| September 10 | 98.1°F (2013) | 39.9°F (2008) | 2.19 in (2006) |
| September 11 | 97.0°F (2013) | 39.9°F (1943) | 4.98 in (2003) |
| September 12 | 95.0°F (2012) | 44.1°F (2022) | 1.92 in (1951) |
| September 13 | 93.0°F (2011) | 35.1°F (2014) | 3.61 in (1985) |
| September 14 | 91.9°F (2025) | 36.0°F (2014) | 1.13 in (2002) |
| September 15 | 93.0°F (2017) | 37.9°F (2011) | 1.85 in (2001) |
| September 16 | 93.0°F (2017) | 39.0°F (2011) | 1.21 in (1968) |
| September 17 | 93.9°F (1947) | 37.9°F (1943) | 1.06 in (1959) |
| September 18 | 93.9°F (1947) | 39.0°F (2012) | 2.04 in (1978) |
| September 19 | 93.9°F (1947) | 39.0°F (2012) | 1.20 in (2007) |
| September 20 | 95.0°F (2022) | 37.9°F (1943) | 3.02 in (1998) |
| September 21 | 100.0°F (2022) | 44.1°F (1943) | 1.32 in (1965) |
| September 22 | 93.0°F (2017) | 37.9°F (2011) | 1.79 in (2019) |
| September 23 | 93.9°F (2017) | 37.0°F (1946) | 1.03 in (1964) |
| September 24 | 91.0°F (2017) | 36.0°F (1946) | 1.21 in (1997) |
| September 25 | 88.0°F (2017) | 39.0°F (2011) | 1.73 in (2016) |
| September 26 | 90.0°F (2020) | 39.0°F (2011) | 2.04 in (1973) |
| September 27 | 91.0°F (2021) | 39.9°F (1945) | 0.83 in (1973) |
| September 28 | 90.0°F (2021) | 30.0°F (1945) | 2.19 in (1988) |
| September 29 | 91.0°F (2021) | 30.0°F (1945) | 4.11 in (1983) |
| September 30 | 93.9°F (2023) | 35.1°F (2009) | 1.77 in (1965) |