September weather in Lowell, MA
The average temperature in Lowell in September is 63.5°F (51.5°F–75.5°F). Average precipitation: 3.89 inches.
September is a fall month in Lowell, and is warmer than the annual average of 49°F. Daily temperatures swing about 24°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 12h 16m. For travel, September is one of the best months of the year to visit.
Avg High
75.5°F
Avg Low
51.5°F
Precipitation
3.89 in
Daylight
12h 16m
September records in Lowell
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 95.0°F (2010) | 39.0°F (1986) | 2.25 in (1927) |
| September 2 | 100.0°F (1953) | 39.9°F (1934) | 3.38 in (2021) |
| September 3 | 99.0°F (1953) | 42.1°F (1893) | 1.51 in (1919) |
| September 4 | 96.1°F (2010) | 41.0°F (1987) | 5.31 in (1905) |
| September 5 | 93.0°F (1953) | 41.0°F (1896) | 2.18 in (1907) |
| September 6 | 91.9°F (2018) | 39.9°F (1902) | 5.29 in (1896) |
| September 7 | 95.0°F (2018) | 39.9°F (1962) | 4.20 in (2008) |
| September 8 | 96.1°F (1960) | 41.0°F (1903) | 1.93 in (1934) |
| September 9 | 96.1°F (1960) | 39.9°F (1891) | 2.05 in (1935) |
| September 10 | 93.9°F (2002) | 39.0°F (1986) | 2.33 in (1924) |
| September 11 | 95.0°F (1931) | 28.9°F (1995) | 6.97 in (1954) |
| September 12 | 96.1°F (2013) | 36.0°F (1917) | 3.14 in (1960) |
| September 13 | 93.0°F (1948) | 39.9°F (1898) | 1.33 in (1928) |
| September 14 | 91.0°F (1903) | 32.0°F (2006) | 4.15 in (1904) |
| September 15 | 90.0°F (1903) | 35.1°F (1913) | 3.74 in (1944) |
| September 16 | 91.9°F (1939) | 36.0°F (1899) | 2.08 in (1916) |
| September 17 | 89.1°F (1915) | 35.1°F (1986) | 5.55 in (1932) |
| September 18 | 91.0°F (1955) | 35.1°F (1986) | 2.24 in (1900) |
| September 19 | 90.0°F (1946) | 34.0°F (1990) | 2.86 in (2023) |
| September 20 | 88.0°F (1906) | 26.1°F (1979) | 1.88 in (1938) |
| September 21 | 90.0°F (1895) | 32.0°F (1993) | 2.19 in (1918) |
| September 22 | 93.0°F (1965) | 30.9°F (1962) | 1.56 in (1913) |
| September 23 | 91.9°F (1895) | 28.9°F (1904) | 2.46 in (1981) |
| September 24 | 91.0°F (1914) | 28.0°F (1917) | 2.44 in (1907) |
| September 25 | 89.1°F (1959) | 30.9°F (1979) | 1.72 in (1985) |
| September 26 | 89.1°F (1930) | 32.0°F (1925) | 2.13 in (1991) |
| September 27 | 91.9°F (2007) | 33.1°F (1997) | 2.26 in (1918) |
| September 28 | 89.1°F (2017) | 32.0°F (1965) | 1.52 in (1993) |
| September 29 | 87.1°F (2007) | 30.9°F (1914) | 2.70 in (1907) |
| September 30 | 86.0°F (1959) | 32.0°F (1951) | 3.38 in (1920) |