September weather in Brunsville, IA
The average temperature in Brunsville in September is 62.7°F (49.6°F–75.8°F). Average precipitation: 3.14 inches.
September is a fall month in Brunsville, and is warmer than the annual average of 46.9°F. Daily temperatures swing about 26.2°F between overnight low and afternoon high. Expect about 7 days with precipitation. Daylight averages about 12h 16m. For travel, September is a comfortable month to visit.
Avg High
75.8°F
Avg Low
49.6°F
Precipitation
3.14 in
Daylight
12h 16m
September records in Brunsville
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 97.0°F (1970) | 37.0°F (1949) | 2.46 in (1933) |
| September 2 | 102.0°F (1925) | 41.0°F (1920) | 1.33 in (1992) |
| September 3 | 100.9°F (2023) | 33.1°F (1974) | 1.68 in (1949) |
| September 4 | 99.0°F (1925) | 35.1°F (1902) | 1.45 in (1980) |
| September 5 | 98.1°F (1931) | 33.1°F (1962) | 3.15 in (2018) |
| September 6 | 102.9°F (1976) | 34.0°F (1956) | 2.23 in (1938) |
| September 7 | 102.0°F (1931) | 35.1°F (1986) | 3.12 in (1964) |
| September 8 | 100.0°F (1931) | 35.1°F (1995) | 1.67 in (1926) |
| September 9 | 100.0°F (1931) | 36.0°F (1943) | 2.88 in (1951) |
| September 10 | 100.9°F (1931) | 34.0°F (1959) | 3.00 in (1914) |
| September 11 | 95.0°F (1931) | 30.9°F (1955) | 5.50 in (1900) |
| September 12 | 99.0°F (1939) | 28.0°F (1902) | 2.25 in (1909) |
| September 13 | 100.9°F (1939) | 26.1°F (1902) | 2.29 in (1978) |
| September 14 | 100.0°F (1939) | 33.1°F (1964) | 2.36 in (1941) |
| September 15 | 98.1°F (1939) | 30.0°F (2011) | 4.06 in (2004) |
| September 16 | 97.0°F (1955) | 30.9°F (1937) | 3.00 in (1906) |
| September 17 | 96.1°F (1955) | 30.0°F (1971) | 0.94 in (1927) |
| September 18 | 93.0°F (1947) | 27.0°F (1902) | 3.55 in (1905) |
| September 19 | 97.0°F (1948) | 27.0°F (1991) | 2.68 in (1905) |
| September 20 | 91.0°F (1931) | 23.0°F (1918) | 3.52 in (1902) |
| September 21 | 100.9°F (2022) | 27.0°F (1995) | 1.87 in (1924) |
| September 22 | 95.0°F (1936) | 21.9°F (1913) | 1.65 in (2006) |
| September 23 | 93.9°F (1938) | 24.1°F (1971) | 1.52 in (1994) |
| September 24 | 89.1°F (1956) | 27.0°F (1942) | 1.52 in (1937) |
| September 25 | 91.9°F (1956) | 26.1°F (1926) | 1.32 in (2005) |
| September 26 | 93.9°F (1956) | 25.0°F (1984) | 1.85 in (2005) |
| September 27 | 93.9°F (1956) | 25.0°F (1942) | 2.33 in (1901) |
| September 28 | 91.0°F (1897) | 21.9°F (1967) | 1.50 in (1988) |
| September 29 | 91.9°F (1981) | 24.1°F (1945) | 1.94 in (1965) |
| September 30 | 93.0°F (2023) | 25.0°F (1920) | 1.57 in (1923) |