September weather in McMechen, WV
The average temperature in McMechen in September is 67.4°F (56.1°F–78.7°F). Average precipitation: 3.50 inches.
September is a fall month in McMechen, and is warmer than the annual average of 53.1°F. Daily temperatures swing about 22.6°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 12h 15m. For travel, September is one of the best months of the year to visit.
Avg High
78.7°F
Avg Low
56.1°F
Precipitation
3.50 in
Daylight
12h 15m
September records in McMechen
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 93.9°F (1993) | 52.0°F (1987) | 1.99 in (2021) |
| September 2 | 91.0°F (2010) | 48.9°F (2025) | 1.44 in (2018) |
| September 3 | 95.0°F (2011) | 50.0°F (1994) | 0.74 in (1993) |
| September 4 | 95.0°F (2002) | 45.0°F (1997) | 0.82 in (1993) |
| September 5 | 95.0°F (2018) | 46.0°F (1997) | 0.40 in (2011) |
| September 6 | 91.9°F (2018) | 46.0°F (1988) | 0.37 in (1990) |
| September 7 | 93.9°F (2007) | 48.0°F (1988) | 1.68 in (1996) |
| September 8 | 93.0°F (2002) | 45.0°F (2024) | 0.82 in (2018) |
| September 9 | 95.0°F (2002) | 45.0°F (2024) | 4.09 in (2004) |
| September 10 | 95.0°F (2002) | 41.0°F (2024) | 3.17 in (2018) |
| September 11 | 93.0°F (2002) | 46.0°F (1995) | 1.06 in (1997) |
| September 12 | 93.0°F (2019) | 45.0°F (1993) | 0.64 in (2013) |
| September 13 | 91.0°F (2019) | 48.0°F (1993) | 1.00 in (1995) |
| September 14 | 89.1°F (2018) | 45.0°F (2014) | 0.81 in (1991) |
| September 15 | 87.1°F (1993) | 45.0°F (2014) | 1.49 in (1989) |
| September 16 | 91.9°F (2019) | 43.0°F (2007) | 0.66 in (1989) |
| September 17 | 89.1°F (2019) | 42.1°F (1990) | 1.71 in (1996) |
| September 18 | 84.9°F (2015) | 42.1°F (1990) | 5.67 in (2004) |
| September 19 | 86.0°F (2002) | 45.0°F (1995) | 1.12 in (2003) |
| September 20 | 89.1°F (2021) | 44.1°F (1995) | 0.82 in (2011) |
| September 21 | 91.9°F (2002) | 41.0°F (2020) | 0.36 in (1999) |
| September 22 | 90.0°F (2024) | 39.9°F (1999) | 1.85 in (1992) |
| September 23 | 90.0°F (2024) | 37.0°F (1995) | 1.78 in (1989) |
| September 24 | 90.0°F (2010) | 37.0°F (1995) | 0.48 in (1989) |
| September 25 | 91.0°F (2010) | 39.0°F (1989) | 1.35 in (1991) |
| September 26 | 91.9°F (2007) | 41.0°F (1989) | 0.99 in (1993) |
| September 27 | 91.0°F (2017) | 41.0°F (1989) | 2.11 in (2011) |
| September 28 | 91.9°F (2017) | 39.0°F (2000) | 0.87 in (2010) |
| September 29 | 86.0°F (1999) | 39.0°F (2000) | 1.41 in (1996) |
| September 30 | 87.1°F (2019) | 39.9°F (1992) | 4.25 in (2015) |