September weather in Myrtle, MN
The average temperature in Myrtle in September is 62.0°F (51.1°F–73.0°F). Average precipitation: 3.71 inches.
September is a fall month in Myrtle, and is warmer than the annual average of 45.2°F. Daily temperatures swing about 21.9°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 12h 17m. For travel, September is one of the best months of the year to visit.
Avg High
73.0°F
Avg Low
51.1°F
Precipitation
3.71 in
Daylight
12h 17m
September records in Myrtle
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 98.1°F (1922) | 32.0°F (1940) | 2.25 in (1923) |
| September 2 | 97.0°F (1925) | 41.0°F (1893) | 0.87 in (1966) |
| September 3 | 96.1°F (1925) | 35.1°F (1974) | 1.50 in (2006) |
| September 4 | 98.1°F (1925) | 39.0°F (1974) | 1.68 in (2011) |
| September 5 | 100.0°F (1913) | 39.9°F (1909) | 2.82 in (2018) |
| September 6 | 102.9°F (1922) | 39.9°F (1956) | 3.20 in (1916) |
| September 7 | 100.0°F (1939) | 39.0°F (1986) | 2.60 in (1917) |
| September 8 | 98.1°F (1978) | 37.9°F (1986) | 2.70 in (1901) |
| September 9 | 95.0°F (1947) | 28.0°F (1910) | 1.85 in (1929) |
| September 10 | 98.1°F (1931) | 34.0°F (1917) | 1.62 in (1895) |
| September 11 | 93.9°F (1948) | 32.0°F (1902) | 1.92 in (1947) |
| September 12 | 95.0°F (1908) | 30.0°F (1902) | 1.25 in (1932) |
| September 13 | 97.0°F (1939) | 33.1°F (2014) | 3.50 in (1938) |
| September 14 | 98.1°F (1939) | 35.1°F (1923) | 3.90 in (1993) |
| September 15 | 98.1°F (1939) | 30.9°F (2007) | 6.97 in (2004) |
| September 16 | 93.9°F (1955) | 32.0°F (1902) | 3.23 in (1941) |
| September 17 | 93.9°F (1955) | 32.0°F (1916) | 2.20 in (1907) |
| September 18 | 93.0°F (1988) | 32.0°F (1929) | 7.25 in (1926) |
| September 19 | 96.1°F (1948) | 30.9°F (1901) | 1.86 in (2019) |
| September 20 | 93.0°F (1908) | 28.9°F (1897) | 2.50 in (1983) |
| September 21 | 93.0°F (2022) | 30.9°F (1918) | 1.75 in (1895) |
| September 22 | 90.0°F (1908) | 19.0°F (1909) | 4.60 in (2016) |
| September 23 | 91.0°F (2017) | 28.9°F (1942) | 3.92 in (2010) |
| September 24 | 89.1°F (2017) | 27.0°F (1942) | 1.85 in (1934) |
| September 25 | 89.1°F (2017) | 26.1°F (1893) | 2.51 in (2005) |
| September 26 | 86.0°F (1974) | 21.9°F (1942) | 3.45 in (1973) |
| September 27 | 89.1°F (1986) | 25.0°F (1942) | 2.17 in (1965) |
| September 28 | 88.0°F (1898) | 28.0°F (1942) | 1.55 in (1965) |
| September 29 | 90.0°F (1922) | 25.0°F (1908) | 1.80 in (1973) |
| September 30 | 90.0°F (1897) | 23.0°F (1939) | 1.50 in (1925) |