September weather in Northfield, MN
The average temperature in Northfield in September is 61.2°F (49.7°F–72.7°F). Average precipitation: 3.68 inches.
September is a fall month in Northfield, and is warmer than the annual average of 44.5°F. Daily temperatures swing about 23°F between overnight low and afternoon high. Expect about 8 days with precipitation. Daylight averages about 12h 17m. For travel, September is a comfortable month to visit.
Avg High
72.7°F
Avg Low
49.7°F
Precipitation
3.68 in
Daylight
12h 17m
September records in Northfield
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 97.0°F (1937) | 35.1°F (1909) | 1.53 in (1904) |
| September 2 | 99.0°F (1925) | 37.9°F (1908) | 2.95 in (1959) |
| September 3 | 99.0°F (1925) | 30.0°F (2002) | 2.55 in (2006) |
| September 4 | 100.0°F (1925) | 35.1°F (1974) | 1.63 in (1964) |
| September 5 | 97.0°F (1922) | 30.9°F (2002) | 4.07 in (2018) |
| September 6 | 96.1°F (1922) | 37.9°F (2002) | 2.14 in (1992) |
| September 7 | 99.0°F (1978) | 36.0°F (1956) | 1.47 in (1960) |
| September 8 | 100.9°F (1931) | 32.0°F (2000) | 1.76 in (1964) |
| September 9 | 96.1°F (1931) | 28.0°F (2000) | 2.06 in (1901) |
| September 10 | 102.0°F (1931) | 30.9°F (1917) | 2.30 in (1933) |
| September 11 | 98.1°F (1931) | 32.0°F (1898) | 4.36 in (1986) |
| September 12 | 95.0°F (1931) | 30.9°F (1955) | 2.15 in (1951) |
| September 13 | 96.1°F (1939) | 30.0°F (1902) | 2.49 in (1978) |
| September 14 | 97.0°F (1939) | 32.0°F (1996) | 1.53 in (1991) |
| September 15 | 98.1°F (1939) | 24.1°F (2000) | 2.65 in (2004) |
| September 16 | 93.9°F (1939) | 24.1°F (1934) | 1.90 in (2016) |
| September 17 | 93.9°F (1955) | 30.0°F (1916) | 2.55 in (1997) |
| September 18 | 93.0°F (1988) | 27.0°F (1929) | 3.50 in (1926) |
| September 19 | 95.0°F (1920) | 35.1°F (1901) | 1.39 in (1907) |
| September 20 | 91.9°F (1908) | 28.9°F (1991) | 1.47 in (1983) |
| September 21 | 95.0°F (1937) | 32.0°F (1918) | 2.45 in (1980) |
| September 22 | 93.9°F (1936) | 24.1°F (1974) | 4.45 in (2016) |
| September 23 | 90.0°F (1937) | 28.9°F (1983) | 3.57 in (2010) |
| September 24 | 88.0°F (1935) | 27.0°F (1983) | 2.64 in (2023) |
| September 25 | 90.0°F (1920) | 27.0°F (1907) | 1.84 in (1929) |
| September 26 | 87.1°F (1923) | 26.1°F (1984) | 1.76 in (1973) |
| September 27 | 87.1°F (1956) | 27.0°F (1984) | 1.88 in (1902) |
| September 28 | 91.0°F (1898) | 24.1°F (1942) | 0.95 in (1965) |
| September 29 | 88.0°F (1897) | 23.0°F (1908) | 0.85 in (1941) |
| September 30 | 90.0°F (1897) | 25.0°F (1899) | 2.80 in (1925) |