September weather in Brockton, MA
The average temperature in Brockton in September is 64.8°F (54.2°F–75.3°F). Average precipitation: 4.08 inches.
September is a fall month in Brockton, and is warmer than the annual average of 51.4°F. Daily temperatures swing about 21.1°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 12h 16m. For travel, September is a comfortable month to visit.
Avg High
75.3°F
Avg Low
54.2°F
Precipitation
4.08 in
Daylight
12h 16m
September records in Brockton
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 95.0°F (2010) | 37.0°F (1971) | 1.10 in (1982) |
| September 2 | 100.0°F (1953) | 37.9°F (1970) | 3.18 in (2021) |
| September 3 | 93.0°F (1930) | 37.9°F (1967) | 3.56 in (1972) |
| September 4 | 93.9°F (1937) | 39.9°F (2004) | 2.46 in (1966) |
| September 5 | 96.1°F (1956) | 37.9°F (1997) | 2.12 in (1950) |
| September 6 | 93.9°F (2018) | 42.1°F (1972) | 2.84 in (2008) |
| September 7 | 99.0°F (2023) | 36.0°F (2004) | 1.75 in (1974) |
| September 8 | 97.0°F (2015) | 37.9°F (1962) | 1.02 in (2011) |
| September 9 | 93.0°F (2002) | 39.0°F (1980) | 1.92 in (1969) |
| September 10 | 95.0°F (1897) | 37.0°F (1953) | 2.24 in (1999) |
| September 11 | 98.1°F (1983) | 35.1°F (1995) | 4.70 in (1954) |
| September 12 | 93.9°F (1931) | 36.0°F (1977) | 2.42 in (1960) |
| September 13 | 91.9°F (1957) | 36.0°F (1967) | 2.70 in (1987) |
| September 14 | 91.9°F (1903) | 32.0°F (1978) | 3.67 in (1944) |
| September 15 | 93.0°F (1915) | 32.0°F (1975) | 3.54 in (1904) |
| September 16 | 96.1°F (1941) | 35.1°F (2004) | 5.20 in (1933) |
| September 17 | 91.9°F (1915) | 33.1°F (1966) | 2.15 in (1933) |
| September 18 | 88.0°F (1906) | 36.0°F (1984) | 2.60 in (1996) |
| September 19 | 91.9°F (1906) | 30.9°F (1956) | 4.83 in (1936) |
| September 20 | 91.9°F (1983) | 30.0°F (1979) | 5.25 in (1899) |
| September 21 | 95.0°F (1895) | 28.9°F (1956) | 3.51 in (1961) |
| September 22 | 95.0°F (1914) | 32.0°F (1904) | 2.00 in (2022) |
| September 23 | 96.1°F (1895) | 33.1°F (1904) | 2.31 in (1994) |
| September 24 | 88.0°F (2017) | 30.9°F (1974) | 2.22 in (1975) |
| September 25 | 88.0°F (1970) | 28.9°F (1963) | 2.04 in (1961) |
| September 26 | 90.0°F (1930) | 30.0°F (1965) | 3.06 in (1918) |
| September 27 | 87.1°F (2014) | 28.0°F (1965) | 1.54 in (2008) |
| September 28 | 88.0°F (2014) | 30.9°F (1947) | 1.60 in (1962) |
| September 29 | 87.1°F (1945) | 27.0°F (1957) | 2.93 in (1974) |
| September 30 | 86.0°F (1986) | 28.0°F (1974) | 2.48 in (2015) |