September weather in Fairmount Heights, MD
The average temperature in Fairmount Heights in September is 71.6°F (61.5°F–81.7°F). Average precipitation: 4.12 inches.
September is a fall month in Fairmount Heights, and is warmer than the annual average of 58.3°F. Daily temperatures swing about 20.2°F between overnight low and afternoon high. Expect about 10 days with precipitation. Daylight averages about 12h 14m. For travel, September is a comfortable month to visit.
Avg High
81.7°F
Avg Low
61.5°F
Precipitation
4.12 in
Daylight
12h 14m
September records in Fairmount Heights
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 102.0°F (1953) | 46.0°F (1965) | 3.46 in (1952) |
| September 2 | 100.0°F (1953) | 46.9°F (1949) | 2.85 in (2006) |
| September 3 | 100.9°F (1953) | 48.0°F (1987) | 1.05 in (2012) |
| September 4 | 98.1°F (1953) | 48.0°F (1989) | 1.78 in (1974) |
| September 5 | 98.1°F (1954) | 46.9°F (1989) | 1.29 in (1996) |
| September 6 | 99.0°F (1954) | 48.9°F (1950) | 6.18 in (1979) |
| September 7 | 100.0°F (1954) | 42.1°F (1988) | 2.85 in (2008) |
| September 8 | 98.1°F (1998) | 43.0°F (1988) | 2.68 in (2011) |
| September 9 | 96.1°F (2016) | 42.1°F (1986) | 1.67 in (2023) |
| September 10 | 95.0°F (1985) | 42.1°F (1949) | 1.96 in (1968) |
| September 11 | 98.1°F (1983) | 43.0°F (1949) | 3.22 in (1950) |
| September 12 | 99.0°F (1983) | 42.1°F (1967) | 3.60 in (1960) |
| September 13 | 97.0°F (1989) | 42.1°F (1958) | 1.71 in (1949) |
| September 14 | 93.9°F (1998) | 45.0°F (1955) | 4.73 in (1966) |
| September 15 | 96.1°F (1998) | 39.9°F (1985) | 1.19 in (1973) |
| September 16 | 97.0°F (1970) | 42.1°F (1985) | 3.23 in (1976) |
| September 17 | 97.0°F (1991) | 39.9°F (1984) | 2.20 in (1957) |
| September 18 | 97.0°F (1991) | 39.9°F (1984) | 1.61 in (2004) |
| September 19 | 91.9°F (1965) | 41.0°F (1959) | 1.86 in (2003) |
| September 20 | 91.9°F (1978) | 42.1°F (1959) | 1.70 in (1964) |
| September 21 | 91.0°F (1965) | 37.0°F (1956) | 1.21 in (1966) |
| September 22 | 97.0°F (1970) | 37.9°F (2024) | 2.30 in (1979) |
| September 23 | 96.1°F (1970) | 39.0°F (1983) | 2.76 in (2003) |
| September 24 | 93.9°F (1970) | 35.1°F (1989) | 1.85 in (2023) |
| September 25 | 96.1°F (2010) | 36.0°F (1963) | 1.20 in (1975) |
| September 26 | 91.9°F (1970) | 37.9°F (1989) | 5.12 in (1975) |
| September 27 | 93.0°F (1986) | 41.0°F (1957) | 4.05 in (1985) |
| September 28 | 91.0°F (1954) | 34.0°F (1989) | 1.25 in (1993) |
| September 29 | 93.9°F (1954) | 34.0°F (1989) | 2.19 in (1963) |
| September 30 | 91.0°F (1954) | 37.0°F (1951) | 2.13 in (2015) |