September weather in Richardton, ND
The average temperature in Richardton in September is 59.7°F (47.6°F–71.8°F). Average precipitation: 1.73 inches. Average snowfall is 0.2 inches.
September is a fall month in Richardton, and is warmer than the annual average of 43.3°F. Daily temperatures swing about 24.2°F between overnight low and afternoon high. Expect about 6 days with precipitation. Daylight averages about 12h 19m. For travel, September is a comfortable month to visit.
Avg High
71.8°F
Avg Low
47.6°F
Precipitation
1.73 in
Snow
0.2 in
September records in Richardton
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 104.0°F (1929) | 32.0°F (1930) | 0.71 in (2011) |
| September 2 | 99.0°F (1960) | 32.0°F (1917) | 0.68 in (1961) |
| September 3 | 98.1°F (1948) | 33.1°F (1918) | 0.49 in (1944) |
| September 4 | 100.0°F (1960) | 33.1°F (1956) | 0.66 in (2008) |
| September 5 | 102.0°F (1978) | 28.9°F (1965) | 2.45 in (1971) |
| September 6 | 100.9°F (1976) | 32.0°F (1929) | 2.90 in (1916) |
| September 7 | 99.0°F (1931) | 36.0°F (1929) | 2.45 in (1941) |
| September 8 | 102.0°F (1959) | 32.0°F (1929) | 1.14 in (2019) |
| September 9 | 96.1°F (1994) | 28.9°F (1918) | 0.75 in (2013) |
| September 10 | 91.9°F (1930) | 30.0°F (1955) | 2.13 in (2003) |
| September 11 | 91.0°F (1948) | 27.0°F (1955) | 1.12 in (1979) |
| September 12 | 93.9°F (1981) | 28.9°F (2014) | 0.93 in (1978) |
| September 13 | 95.0°F (1959) | 23.0°F (1949) | 1.71 in (1967) |
| September 14 | 97.0°F (1948) | 26.1°F (1993) | 1.02 in (2001) |
| September 15 | 102.9°F (1948) | 25.0°F (1916) | 1.45 in (1962) |
| September 16 | 95.0°F (2002) | 28.0°F (1959) | 2.21 in (1976) |
| September 17 | 91.9°F (1920) | 27.0°F (1965) | 0.75 in (1942) |
| September 18 | 95.0°F (1933) | 27.0°F (1929) | 1.71 in (1977) |
| September 19 | 91.9°F (2021) | 23.0°F (1918) | 0.77 in (1996) |
| September 20 | 93.0°F (1960) | 27.0°F (1927) | 2.14 in (1931) |
| September 21 | 90.0°F (1936) | 23.0°F (1995) | 1.69 in (1955) |
| September 22 | 95.0°F (1936) | 23.0°F (1995) | 1.13 in (1940) |
| September 23 | 90.0°F (1917) | 27.0°F (1965) | 1.30 in (1920) |
| September 24 | 90.0°F (1949) | 21.9°F (1926) | 1.24 in (1977) |
| September 25 | 90.0°F (1925) | 16.0°F (1926) | 1.49 in (1986) |
| September 26 | 91.9°F (1952) | 17.1°F (1942) | 0.79 in (1976) |
| September 27 | 93.9°F (2024) | 19.0°F (1928) | 0.69 in (1982) |
| September 28 | 93.9°F (2021) | 21.0°F (1951) | 0.48 in (1982) |
| September 29 | 97.0°F (2021) | 26.1°F (1939) | 0.68 in (1923) |
| September 30 | 97.0°F (2024) | 18.0°F (1974) | 0.66 in (2014) |