September weather in Fortuna, ND
The average temperature in Fortuna in September is 55.0°F (40.9°F–69.0°F). Average precipitation: 1.18 inches.
September is a fall month in Fortuna, and is warmer than the annual average of 38.3°F. Daily temperatures swing about 28.1°F between overnight low and afternoon high. Expect about 3 days with precipitation. Daylight averages about 12h 20m. For travel, September is a comfortable month to visit.
Avg High
69.0°F
Avg Low
40.9°F
Precipitation
1.18 in
Daylight
12h 20m
September records in Fortuna
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 97.0°F (1983) | 32.0°F (1994) | 0.73 in (1979) |
| September 2 | 97.0°F (1983) | 30.0°F (1974) | 0.55 in (2019) |
| September 3 | 96.1°F (2023) | 30.0°F (1981) | 0.76 in (1973) |
| September 4 | 97.0°F (1978) | 30.0°F (1981) | 1.55 in (1973) |
| September 5 | 98.1°F (1998) | 28.9°F (2018) | 1.25 in (1996) |
| September 6 | 93.9°F (2022) | 30.0°F (2018) | 1.20 in (2015) |
| September 7 | 102.0°F (1976) | 28.9°F (1964) | 0.40 in (2019) |
| September 8 | 95.0°F (2003) | 19.9°F (2020) | 1.85 in (1991) |
| September 9 | 96.1°F (1994) | 30.0°F (2020) | 0.54 in (1970) |
| September 10 | 95.0°F (1994) | 30.0°F (1989) | 0.55 in (2010) |
| September 11 | 89.1°F (1966) | 21.9°F (1964) | 0.30 in (1979) |
| September 12 | 91.0°F (1969) | 21.0°F (1989) | 2.18 in (1978) |
| September 13 | 91.9°F (1969) | 24.1°F (1970) | 0.57 in (1978) |
| September 14 | 90.0°F (1969) | 19.9°F (2007) | 0.10 in (2001) |
| September 15 | 84.9°F (2009) | 19.0°F (2007) | 0.30 in (2010) |
| September 16 | 91.0°F (1987) | 25.0°F (1982) | 0.55 in (2017) |
| September 17 | 93.0°F (1979) | 27.0°F (1973) | 0.70 in (2006) |
| September 18 | 91.9°F (1976) | 21.0°F (2010) | 0.60 in (2013) |
| September 19 | 93.0°F (2021) | 21.9°F (2010) | 1.80 in (1978) |
| September 20 | 90.0°F (1981) | 26.1°F (2006) | 1.10 in (2011) |
| September 21 | 84.0°F (1966) | 19.9°F (1995) | 1.15 in (2018) |
| September 22 | 84.0°F (1967) | 19.9°F (1983) | 1.15 in (2008) |
| September 23 | 84.9°F (1987) | 19.9°F (1984) | 0.30 in (1996) |
| September 24 | 90.0°F (1992) | 21.0°F (1985) | 0.55 in (2016) |
| September 25 | 89.1°F (1992) | 23.0°F (1985) | 0.70 in (1986) |
| September 26 | 93.9°F (2014) | 23.0°F (1985) | 1.00 in (1964) |
| September 27 | 90.0°F (2014) | 23.0°F (1964) | 0.35 in (2006) |
| September 28 | 87.1°F (1967) | 19.9°F (2018) | 1.00 in (1982) |
| September 29 | 93.9°F (2021) | 24.1°F (1972) | 0.90 in (2019) |
| September 30 | 84.0°F (2022) | 19.0°F (1974) | 0.65 in (2014) |