September weather in Healdsburg, CA
The average temperature in Healdsburg in September is 68.5°F (52.3°F–84.6°F). Average precipitation: 0.10 inches.
September is a fall month in Healdsburg, and is warmer than the annual average of 60.2°F. Daily temperatures swing about 32.3°F between overnight low and afternoon high. Expect about 1 days with precipitation. Daylight averages about 12h 14m. For travel, September is a comfortable month to visit.
Avg High
84.6°F
Avg Low
52.3°F
Precipitation
0.10 in
Daylight
12h 14m
September records in Healdsburg
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 111.0°F (2017) | 41.0°F (1904) | 0.29 in (1919) |
| September 2 | 111.0°F (2017) | 43.0°F (1904) | 0.21 in (1912) |
| September 3 | 109.0°F (1950) | 39.9°F (1901) | 0.03 in (1912) |
| September 4 | 106.0°F (2022) | 36.0°F (1900) | 0.09 in (1940) |
| September 5 | 114.1°F (2022) | 37.9°F (1900) | 3.10 in (1912) |
| September 6 | 117.0°F (2022) | 37.0°F (1899) | 0.23 in (1912) |
| September 7 | 114.1°F (2020) | 37.0°F (1899) | 1.00 in (1909) |
| September 8 | 108.0°F (1984) | 30.0°F (1901) | 0.58 in (1985) |
| September 9 | 109.9°F (1944) | 34.0°F (1901) | 1.73 in (1978) |
| September 10 | 102.9°F (1922) | 35.1°F (1901) | 0.22 in (1978) |
| September 11 | 108.0°F (1979) | 34.0°F (1901) | 1.20 in (1893) |
| September 12 | 109.9°F (1979) | 39.9°F (1910) | 0.07 in (1900) |
| September 13 | 114.1°F (1971) | 37.9°F (1907) | 1.43 in (1918) |
| September 14 | 113.0°F (1971) | 35.1°F (1921) | 0.62 in (1918) |
| September 15 | 111.0°F (1971) | 37.0°F (1900) | 0.17 in (1935) |
| September 16 | 109.9°F (1913) | 39.9°F (1970) | 1.32 in (1989) |
| September 17 | 106.0°F (1913) | 39.0°F (1900) | 0.85 in (1989) |
| September 18 | 108.0°F (1913) | 39.0°F (1908) | 4.52 in (1959) |
| September 19 | 106.0°F (1919) | 35.1°F (1926) | 1.34 in (1977) |
| September 20 | 108.0°F (1939) | 37.9°F (1911) | 0.21 in (1973) |
| September 21 | 109.0°F (1928) | 37.9°F (1924) | 0.04 in (1983) |
| September 22 | 111.0°F (1939) | 30.9°F (1992) | 0.52 in (1904) |
| September 23 | 107.1°F (1964) | 39.0°F (1924) | 1.47 in (1904) |
| September 24 | 108.0°F (1964) | 36.0°F (1900) | 0.57 in (1904) |
| September 25 | 102.9°F (2019) | 34.0°F (1900) | 1.16 in (1904) |
| September 26 | 102.9°F (1958) | 33.1°F (1900) | 1.30 in (1957) |
| September 27 | 105.1°F (1921) | 32.0°F (1904) | 2.50 in (1957) |
| September 28 | 106.0°F (1908) | 37.9°F (1900) | 0.85 in (1977) |
| September 29 | 108.0°F (1966) | 36.0°F (1900) | 1.10 in (1894) |
| September 30 | 104.0°F (1980) | 35.1°F (1900) | 0.32 in (1983) |