September weather in Susanville, CA
The average temperature in Susanville in September is 62.7°F (45.3°F–80.0°F). Average precipitation: 0.24 inches.
September is a fall month in Susanville, and is warmer than the annual average of 50.2°F. Daily temperatures swing about 34.7°F between overnight low and afternoon high. Expect about 1 days with precipitation. Daylight averages about 12h 15m. For travel, September is a comfortable month to visit.
Avg High
80.0°F
Avg Low
45.3°F
Precipitation
0.24 in
Daylight
12h 15m
September records in Susanville
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 98.1°F (1950) | 34.0°F (1951) | 0.35 in (1936) |
| September 2 | 100.9°F (1950) | 27.0°F (1964) | 0.30 in (1897) |
| September 3 | 100.0°F (1955) | 32.0°F (1964) | 0.25 in (1900) |
| September 4 | 98.1°F (1955) | 33.1°F (1954) | 0.53 in (1936) |
| September 5 | 98.1°F (1955) | 34.0°F (1900) | 0.38 in (1907) |
| September 6 | 98.1°F (2022) | 34.0°F (1911) | 0.90 in (1893) |
| September 7 | 100.0°F (2022) | 32.0°F (1992) | 0.11 in (1950) |
| September 8 | 97.0°F (2022) | 32.0°F (1901) | 0.12 in (1985) |
| September 9 | 96.1°F (1944) | 32.0°F (1927) | 0.24 in (1985) |
| September 10 | 96.1°F (1948) | 28.0°F (2022) | 0.25 in (2005) |
| September 11 | 95.0°F (1944) | 30.9°F (1985) | 0.57 in (1976) |
| September 12 | 93.9°F (1913) | 26.1°F (1994) | 1.10 in (1895) |
| September 13 | 96.1°F (1947) | 23.0°F (1914) | 1.45 in (1895) |
| September 14 | 100.9°F (1929) | 21.9°F (1970) | 0.30 in (1997) |
| September 15 | 96.1°F (1937) | 28.9°F (1985) | 0.51 in (1982) |
| September 16 | 96.1°F (1932) | 30.0°F (2021) | 0.76 in (1908) |
| September 17 | 96.1°F (1929) | 28.0°F (1949) | 0.75 in (2019) |
| September 18 | 96.1°F (1929) | 23.0°F (1965) | 0.75 in (1982) |
| September 19 | 90.0°F (1929) | 23.0°F (1947) | 0.75 in (1896) |
| September 20 | 91.9°F (1913) | 26.1°F (1965) | 0.68 in (2022) |
| September 21 | 91.0°F (1936) | 26.1°F (1993) | 0.41 in (1945) |
| September 22 | 90.0°F (1949) | 26.1°F (1968) | 0.33 in (1967) |
| September 23 | 90.0°F (1949) | 19.9°F (2017) | 0.65 in (1934) |
| September 24 | 91.9°F (1943) | 23.0°F (1958) | 0.68 in (1998) |
| September 25 | 91.9°F (1967) | 23.0°F (1948) | 0.28 in (1904) |
| September 26 | 89.1°F (1963) | 27.0°F (1955) | 0.19 in (1990) |
| September 27 | 91.9°F (2009) | 24.1°F (1948) | 0.82 in (1986) |
| September 28 | 91.0°F (2010) | 25.0°F (1959) | 1.37 in (1918) |
| September 29 | 89.1°F (1963) | 21.9°F (1954) | 0.80 in (1930) |
| September 30 | 90.0°F (1992) | 18.0°F (1950) | 0.75 in (1957) |