September weather in Wellsville, NY
The average temperature in Wellsville in September is 58.4°F (46.3°F–70.5°F). Average precipitation: 3.59 inches.
September is a fall month in Wellsville, and is warmer than the annual average of 44.9°F. Daily temperatures swing about 24.2°F between overnight low and afternoon high. Expect about 11 days with precipitation. Daylight averages about 12h 16m. For travel, September is a comfortable month to visit.
Avg High
70.5°F
Avg Low
46.3°F
Precipitation
3.59 in
Daylight
12h 16m
September records in Wellsville
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 89.1°F (2012) | 37.9°F (2025) | 0.80 in (2005) |
| September 2 | 87.1°F (2010) | 36.0°F (2017) | 2.36 in (1993) |
| September 3 | 88.0°F (2010) | 37.9°F (2007) | 1.70 in (2006) |
| September 4 | 90.0°F (2011) | 37.9°F (2024) | 1.92 in (1966) |
| September 5 | 88.0°F (2023) | 42.1°F (2016) | 1.30 in (2012) |
| September 6 | 88.0°F (2018) | 37.0°F (2013) | 2.22 in (2022) |
| September 7 | 88.0°F (2023) | 36.0°F (2013) | 1.10 in (2024) |
| September 8 | 89.1°F (2015) | 39.0°F (2025) | 1.08 in (1985) |
| September 9 | 90.0°F (2015) | 37.9°F (2013) | 2.10 in (2004) |
| September 10 | 86.0°F (2015) | 37.0°F (2013) | 1.46 in (2007) |
| September 11 | 87.1°F (2013) | 37.9°F (2012) | 1.35 in (2018) |
| September 12 | 89.1°F (2013) | 37.9°F (2012) | 2.40 in (1987) |
| September 13 | 89.1°F (2013) | 39.9°F (2020) | 1.56 in (2015) |
| September 14 | 82.0°F (2005) | 41.0°F (2007) | 3.91 in (1977) |
| September 15 | 82.0°F (2005) | 36.0°F (2013) | 0.98 in (1979) |
| September 16 | 81.0°F (2018) | 35.1°F (2013) | 1.14 in (1956) |
| September 17 | 80.1°F (2015) | 33.1°F (2007) | 1.60 in (1999) |
| September 18 | 80.1°F (2015) | 33.1°F (2007) | 2.27 in (2004) |
| September 19 | 81.0°F (2017) | 28.9°F (2020) | 1.00 in (2012) |
| September 20 | 78.1°F (2016) | 28.9°F (2020) | 0.82 in (1971) |
| September 21 | 81.0°F (2016) | 28.9°F (2020) | 1.36 in (1992) |
| September 22 | 82.9°F (2018) | 28.0°F (2020) | 2.05 in (2024) |
| September 23 | 84.0°F (2019) | 28.9°F (2020) | 1.25 in (2021) |
| September 24 | 84.0°F (2017) | 35.1°F (2013) | 1.13 in (1991) |
| September 25 | 86.0°F (2010) | 35.1°F (2012) | 1.67 in (2001) |
| September 26 | 86.0°F (2017) | 34.0°F (2016) | 2.23 in (1975) |
| September 27 | 86.0°F (2017) | 36.0°F (2009) | 1.35 in (2005) |
| September 28 | 86.0°F (2017) | 37.0°F (2005) | 1.60 in (2003) |
| September 29 | 81.0°F (2025) | 36.0°F (2005) | 2.54 in (1967) |
| September 30 | 75.9°F (2014) | 32.0°F (2006) | 3.51 in (2015) |