September weather in Bel Air, MD
The average temperature in Bel Air in September is 68.5°F (58.8°F–78.2°F). Average precipitation: 4.84 inches.
September is a fall month in Bel Air, and is warmer than the annual average of 55.2°F. Daily temperatures swing about 19.4°F between overnight low and afternoon high. Daylight averages about 12h 15m. For travel, September is a comfortable month to visit.
Avg High
78.2°F
Avg Low
58.8°F
Precipitation
4.84 in
Daylight
12h 15m
September records in Bel Air
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 95.0°F (1932) | 48.0°F (1946) | 2.17 in (1978) |
| September 2 | 98.1°F (1953) | 46.0°F (1948) | 3.34 in (2021) |
| September 3 | 96.1°F (1953) | 48.0°F (1967) | 6.38 in (1969) |
| September 4 | 93.0°F (2015) | 46.9°F (1946) | 3.30 in (1969) |
| September 5 | 97.0°F (2023) | 48.9°F (1924) | 2.53 in (1935) |
| September 6 | 97.0°F (1983) | 45.0°F (1924) | 3.62 in (1979) |
| September 7 | 93.9°F (1983) | 43.0°F (1984) | 2.12 in (2022) |
| September 8 | 97.0°F (1939) | 46.9°F (1988) | 3.22 in (2008) |
| September 9 | 93.9°F (2016) | 43.0°F (1986) | 2.10 in (1987) |
| September 10 | 95.0°F (1931) | 45.0°F (1924) | 3.33 in (1957) |
| September 11 | 96.1°F (1931) | 42.1°F (1924) | 2.09 in (1950) |
| September 12 | 98.1°F (1983) | 45.0°F (1967) | 1.10 in (1971) |
| September 13 | 93.9°F (1952) | 45.0°F (1943) | 3.93 in (1944) |
| September 14 | 89.1°F (1947) | 45.0°F (1946) | 2.53 in (2009) |
| September 15 | 96.1°F (1927) | 44.1°F (1975) | 3.64 in (2003) |
| September 16 | 91.9°F (1970) | 44.1°F (1984) | 2.67 in (1981) |
| September 17 | 91.9°F (1942) | 44.1°F (1966) | 1.93 in (1996) |
| September 18 | 91.9°F (1991) | 39.9°F (1990) | 1.42 in (1945) |
| September 19 | 90.0°F (1942) | 41.0°F (1943) | 2.66 in (2016) |
| September 20 | 90.0°F (1983) | 42.1°F (2020) | 1.93 in (1938) |
| September 21 | 91.9°F (1931) | 37.0°F (1956) | 1.93 in (1946) |
| September 22 | 93.9°F (1931) | 41.0°F (2020) | 2.18 in (2013) |
| September 23 | 91.9°F (1970) | 34.0°F (1947) | 1.91 in (1975) |
| September 24 | 91.0°F (1970) | 35.1°F (1974) | 3.71 in (2021) |
| September 25 | 91.9°F (2010) | 37.9°F (1928) | 3.37 in (1975) |
| September 26 | 90.0°F (1986) | 36.0°F (1940) | 2.19 in (2000) |
| September 27 | 88.0°F (1986) | 36.0°F (1947) | 6.00 in (1985) |
| September 28 | 89.1°F (2017) | 37.0°F (1957) | 1.20 in (2009) |
| September 29 | 88.0°F (1945) | 36.0°F (1951) | 2.30 in (2004) |
| September 30 | 88.0°F (1986) | 35.1°F (1951) | 3.03 in (2010) |