September weather in Highland, CA
The average temperature in Highland in September is 76.0°F (59.6°F–92.3°F). Average precipitation: 0.13 inches.
September is a fall month in Highland, and is warmer than the annual average of 65.2°F. Daily temperatures swing about 32.7°F between overnight low and afternoon high. Expect about 1 days with precipitation. Daylight averages about 12h 12m. For travel, September is hot.
Avg High
92.3°F
Avg Low
59.6°F
Precipitation
0.13 in
Daylight
12h 12m
September records in Highland
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 109.9°F (2007) | 48.0°F (1907) | 0.15 in (1998) |
| September 2 | 109.9°F (1982) | 48.9°F (1926) | 0.99 in (1998) |
| September 3 | 111.9°F (1988) | 48.9°F (1921) | 0.22 in (1931) |
| September 4 | 109.0°F (1984) | 46.0°F (1912) | 0.47 in (1963) |
| September 5 | 109.9°F (1984) | 45.0°F (1912) | 0.19 in (1985) |
| September 6 | 111.9°F (1955) | 46.0°F (1912) | 0.54 in (1978) |
| September 7 | 109.0°F (1898) | 46.9°F (1901) | 0.33 in (1950) |
| September 8 | 108.0°F (1979) | 43.0°F (1914) | 0.50 in (1958) |
| September 9 | 111.9°F (1979) | 41.0°F (1901) | 0.09 in (2004) |
| September 10 | 107.1°F (1898) | 42.1°F (1901) | 1.50 in (1976) |
| September 11 | 109.9°F (1971) | 46.0°F (1900) | 1.51 in (1976) |
| September 12 | 114.1°F (1971) | 46.9°F (1952) | 0.44 in (1960) |
| September 13 | 115.0°F (1971) | 46.0°F (1921) | 0.17 in (2022) |
| September 14 | 107.1°F (1929) | 45.0°F (1939) | 0.20 in (1910) |
| September 15 | 105.1°F (1937) | 46.0°F (1907) | 0.82 in (2015) |
| September 16 | 109.0°F (2000) | 46.0°F (1921) | 0.08 in (1976) |
| September 17 | 108.0°F (1922) | 45.0°F (1908) | 0.71 in (1963) |
| September 18 | 105.1°F (1899) | 44.1°F (1924) | 0.88 in (1963) |
| September 19 | 106.0°F (1899) | 46.0°F (1925) | 0.93 in (1952) |
| September 20 | 104.0°F (1899) | 46.9°F (1925) | 0.86 in (2024) |
| September 21 | 109.0°F (2003) | 46.0°F (2007) | 0.08 in (1935) |
| September 22 | 106.0°F (1949) | 46.0°F (1944) | 0.05 in (1939) |
| September 23 | 107.1°F (2002) | 46.0°F (1941) | 0.30 in (1939) |
| September 24 | 106.0°F (1991) | 43.0°F (1923) | 1.55 in (1939) |
| September 25 | 107.1°F (1963) | 44.1°F (1934) | 0.60 in (1997) |
| September 26 | 108.0°F (2009) | 43.0°F (1948) | 0.38 in (1982) |
| September 27 | 109.0°F (2010) | 45.0°F (1923) | 0.87 in (1982) |
| September 28 | 107.1°F (1963) | 44.1°F (1971) | 0.92 in (1982) |
| September 29 | 105.1°F (1963) | 43.0°F (1909) | 0.64 in (1919) |
| September 30 | 108.0°F (1980) | 44.1°F (1940) | 1.27 in (1916) |