September weather in Falls Church, VA
The average temperature in Falls Church in September is 69.3°F (59.2°F–79.4°F). Average precipitation: 4.54 inches.
September is a fall month in Falls Church, and is warmer than the annual average of 56.2°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
79.4°F
Avg Low
59.2°F
Precipitation
4.54 in
Daylight
12h 14m
September records in Falls Church
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 98.1°F (1953) | 46.9°F (1948) | 2.00 in (2018) |
| September 2 | 99.0°F (1953) | 44.1°F (1991) | 2.80 in (2006) |
| September 3 | 98.1°F (1953) | 43.0°F (1994) | 0.98 in (1992) |
| September 4 | 95.0°F (1985) | 48.0°F (1989) | 1.70 in (1996) |
| September 5 | 98.1°F (1964) | 39.9°F (1994) | 2.00 in (1979) |
| September 6 | 98.1°F (1985) | 45.0°F (1988) | 3.17 in (1979) |
| September 7 | 98.1°F (1985) | 44.1°F (1988) | 5.44 in (2008) |
| September 8 | 95.0°F (2023) | 48.0°F (1984) | 3.40 in (2011) |
| September 9 | 95.0°F (1985) | 44.1°F (1986) | 2.37 in (2011) |
| September 10 | 98.1°F (1983) | 43.0°F (1956) | 2.27 in (1968) |
| September 11 | 99.0°F (1983) | 36.0°F (1967) | 2.50 in (2020) |
| September 12 | 95.0°F (1998) | 37.9°F (1993) | 2.50 in (1960) |
| September 13 | 95.0°F (2019) | 41.0°F (1992) | 3.62 in (1987) |
| September 14 | 93.0°F (1998) | 42.1°F (1975) | 5.50 in (1966) |
| September 15 | 93.9°F (1998) | 44.1°F (1985) | 0.60 in (2005) |
| September 16 | 96.1°F (1991) | 42.1°F (1988) | 3.77 in (1999) |
| September 17 | 97.0°F (1991) | 43.0°F (1990) | 2.93 in (1957) |
| September 18 | 93.9°F (1991) | 41.0°F (1986) | 2.10 in (2018) |
| September 19 | 93.0°F (1965) | 39.0°F (1994) | 1.77 in (2003) |
| September 20 | 91.9°F (1965) | 42.1°F (1959) | 1.29 in (1966) |
| September 21 | 93.0°F (1998) | 30.9°F (1956) | 1.62 in (2001) |
| September 22 | 95.0°F (1970) | 37.0°F (1991) | 2.08 in (1979) |
| September 23 | 95.0°F (1970) | 34.0°F (1992) | 3.09 in (2003) |
| September 24 | 99.0°F (1984) | 36.0°F (1963) | 2.00 in (2023) |
| September 25 | 96.1°F (2010) | 37.0°F (1963) | 2.22 in (1991) |
| September 26 | 93.0°F (1970) | 33.1°F (1989) | 4.74 in (1975) |
| September 27 | 96.1°F (1998) | 36.0°F (1991) | 3.76 in (1985) |
| September 28 | 95.0°F (2007) | 37.0°F (1984) | 1.72 in (2018) |
| September 29 | 91.9°F (1954) | 37.0°F (1951) | 2.01 in (2016) |
| September 30 | 91.0°F (1986) | 34.0°F (1993) | 2.00 in (2010) |