September weather in Ukiah, CA
The average temperature in Ukiah in September is 69.1°F (51.3°F–87.0°F). Average precipitation: 0.20 inches.
September is a fall month in Ukiah, and is warmer than the annual average of 58.9°F. Daily temperatures swing about 35.7°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
87.0°F
Avg Low
51.3°F
Precipitation
0.20 in
Daylight
12h 14m
September records in Ukiah
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 111.9°F (1950) | 41.0°F (1902) | 0.10 in (1979) |
| September 2 | 114.1°F (1955) | 39.0°F (1899) | 0.32 in (2000) |
| September 3 | 115.0°F (1955) | 39.9°F (1914) | 0.16 in (1912) |
| September 4 | 113.0°F (1955) | 37.0°F (1907) | 0.30 in (1912) |
| September 5 | 107.1°F (1904) | 37.9°F (1899) | 0.47 in (1978) |
| September 6 | 108.0°F (1924) | 37.9°F (1900) | 2.00 in (1912) |
| September 7 | 108.0°F (1904) | 37.9°F (1901) | 0.67 in (1985) |
| September 8 | 109.0°F (1944) | 34.0°F (1901) | 0.70 in (1919) |
| September 9 | 109.9°F (1932) | 37.9°F (1928) | 1.50 in (1978) |
| September 10 | 108.0°F (1899) | 37.0°F (1911) | 0.60 in (1893) |
| September 11 | 106.0°F (1899) | 39.0°F (1928) | 0.34 in (1895) |
| September 12 | 108.0°F (1945) | 37.9°F (1915) | 1.14 in (1895) |
| September 13 | 109.9°F (1971) | 35.1°F (1921) | 0.98 in (1918) |
| September 14 | 109.9°F (1971) | 35.1°F (1903) | 0.52 in (1997) |
| September 15 | 109.0°F (1971) | 35.1°F (1921) | 1.52 in (1982) |
| September 16 | 106.0°F (1913) | 35.1°F (1910) | 0.98 in (1989) |
| September 17 | 104.0°F (1913) | 37.0°F (1900) | 1.03 in (1986) |
| September 18 | 104.0°F (1913) | 30.0°F (1902) | 1.91 in (1959) |
| September 19 | 105.1°F (1919) | 34.0°F (1895) | 1.65 in (1977) |
| September 20 | 106.0°F (1919) | 33.1°F (1895) | 0.50 in (1973) |
| September 21 | 106.0°F (1943) | 33.1°F (1902) | 0.45 in (1923) |
| September 22 | 108.0°F (1943) | 34.0°F (1924) | 1.55 in (1923) |
| September 23 | 108.0°F (1964) | 33.1°F (1902) | 1.24 in (1901) |
| September 24 | 106.0°F (1964) | 36.0°F (1958) | 0.90 in (1904) |
| September 25 | 104.0°F (1952) | 33.1°F (1902) | 1.20 in (1990) |
| September 26 | 105.1°F (1967) | 34.0°F (1924) | 0.75 in (1957) |
| September 27 | 102.9°F (1958) | 32.0°F (1900) | 2.25 in (1957) |
| September 28 | 102.9°F (1958) | 34.0°F (1900) | 0.74 in (1977) |
| September 29 | 106.0°F (1966) | 32.0°F (1902) | 0.77 in (1894) |
| September 30 | 102.0°F (1952) | 30.0°F (1926) | 0.11 in (1951) |