September weather in Hampstead, MD
The average temperature in Hampstead in September is 66.5°F (56.3°F–76.7°F). Average precipitation: 5.11 inches.
September is a fall month in Hampstead, and is warmer than the annual average of 53.7°F. Daily temperatures swing about 20.4°F between overnight low and afternoon high. Expect about 10 days with precipitation. Daylight averages about 12h 15m. For travel, September is a wet month.
Avg High
76.7°F
Avg Low
56.3°F
Precipitation
5.11 in
Daylight
12h 15m
September records in Hampstead
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 93.0°F (2010) | 48.9°F (2025) | 3.53 in (2021) |
| September 2 | 93.0°F (2010) | 48.0°F (1991) | 1.52 in (2006) |
| September 3 | 91.9°F (2023) | 48.0°F (2024) | 2.19 in (2012) |
| September 4 | 95.0°F (2023) | 45.0°F (2024) | 1.95 in (2003) |
| September 5 | 93.9°F (2023) | 46.0°F (1997) | 0.85 in (1991) |
| September 6 | 96.1°F (2023) | 44.1°F (1988) | 3.77 in (2008) |
| September 7 | 93.0°F (2023) | 42.1°F (2000) | 3.62 in (2011) |
| September 8 | 91.9°F (2015) | 43.0°F (2024) | 3.35 in (2011) |
| September 9 | 90.0°F (2015) | 44.1°F (2024) | 2.72 in (2018) |
| September 10 | 91.0°F (2016) | 46.9°F (2017) | 2.82 in (2015) |
| September 11 | 91.9°F (2013) | 42.1°F (1995) | 2.04 in (2009) |
| September 12 | 88.0°F (1998) | 43.0°F (1993) | 2.66 in (2015) |
| September 13 | 90.0°F (2005) | 44.1°F (1992) | 0.84 in (2003) |
| September 14 | 88.0°F (2016) | 45.0°F (2014) | 1.08 in (2006) |
| September 15 | 89.1°F (2005) | 42.1°F (2013) | 1.50 in (2000) |
| September 16 | 90.0°F (1991) | 41.0°F (1988) | 3.79 in (1999) |
| September 17 | 88.0°F (1991) | 37.0°F (2007) | 1.88 in (1995) |
| September 18 | 82.9°F (2015) | 37.0°F (1990) | 4.80 in (2004) |
| September 19 | 87.1°F (2025) | 41.0°F (2020) | 1.91 in (1991) |
| September 20 | 84.0°F (2024) | 35.1°F (2020) | 0.65 in (1989) |
| September 21 | 84.9°F (1989) | 36.0°F (2020) | 0.96 in (1989) |
| September 22 | 90.0°F (2010) | 36.0°F (2020) | 2.01 in (2024) |
| September 23 | 89.1°F (2005) | 41.0°F (2014) | 2.49 in (2003) |
| September 24 | 91.9°F (2010) | 37.9°F (1992) | 1.38 in (2023) |
| September 25 | 89.1°F (2007) | 37.0°F (1989) | 3.58 in (2001) |
| September 26 | 90.0°F (2007) | 39.0°F (2001) | 1.31 in (2000) |
| September 27 | 89.1°F (1998) | 39.0°F (1989) | 3.00 in (2008) |
| September 28 | 84.9°F (1998) | 35.1°F (1989) | 2.49 in (2004) |
| September 29 | 80.1°F (2019) | 37.0°F (2000) | 1.72 in (2016) |
| September 30 | 81.0°F (1998) | 36.0°F (1992) | 2.91 in (2015) |