October weather in Clearlake, CA
The average temperature in Clearlake in October is 59.3°F (43.2°F–75.4°F). Average precipitation: 0.91 inches.
October is a fall month in Clearlake, and is warmer than the annual average of 56.9°F. Daily temperatures swing about 32.2°F between overnight low and afternoon high. Expect about 4 days with precipitation. Daylight averages about 10h 57m. For travel, October is a comfortable month to visit.
Avg High
75.4°F
Avg Low
43.2°F
Precipitation
0.91 in
Daylight
10h 57m
October records in Clearlake
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| October 1 | 104.0°F (2009) | 28.9°F (1971) | 0.52 in (1983) |
| October 2 | 99.0°F (1980) | 30.0°F (1971) | 0.40 in (1976) |
| October 3 | 102.0°F (2024) | 30.9°F (1965) | 0.47 in (1967) |
| October 4 | 99.0°F (1980) | 30.0°F (1965) | 0.12 in (2006) |
| October 5 | 99.0°F (1980) | 30.0°F (1969) | 0.53 in (1994) |
| October 6 | 98.1°F (1980) | 28.9°F (1969) | 0.80 in (1960) |
| October 7 | 99.0°F (2024) | 32.0°F (1955) | 0.59 in (1981) |
| October 8 | 99.0°F (2014) | 35.1°F (1955) | 0.07 in (1974) |
| October 9 | 95.0°F (1996) | 33.1°F (1955) | 1.99 in (1957) |
| October 10 | 100.0°F (2020) | 33.1°F (1963) | 1.34 in (1975) |
| October 11 | 93.0°F (1991) | 34.0°F (1960) | 1.00 in (1962) |
| October 12 | 91.9°F (1991) | 35.1°F (1956) | 3.00 in (1962) |
| October 13 | 93.0°F (1978) | 28.9°F (1969) | 2.85 in (1962) |
| October 14 | 95.0°F (2015) | 32.0°F (1960) | 0.97 in (2025) |
| October 15 | 95.0°F (1961) | 27.0°F (1966) | 1.12 in (1969) |
| October 16 | 93.0°F (1988) | 25.0°F (1966) | 0.68 in (1963) |
| October 17 | 93.9°F (2020) | 26.1°F (1966) | 0.88 in (1984) |
| October 18 | 91.9°F (1961) | 25.0°F (1966) | 1.12 in (2004) |
| October 19 | 90.0°F (1961) | 25.0°F (1966) | 0.41 in (1990) |
| October 20 | 96.1°F (2020) | 30.0°F (1966) | 1.23 in (2004) |
| October 21 | 91.0°F (1964) | 28.9°F (1971) | 1.12 in (1992) |
| October 22 | 90.0°F (1964) | 25.0°F (1961) | 0.82 in (1989) |
| October 23 | 90.0°F (1965) | 27.0°F (1961) | 3.08 in (1989) |
| October 24 | 89.1°F (1965) | 26.1°F (1961) | 2.47 in (2021) |
| October 25 | 90.0°F (1965) | 26.1°F (1971) | 2.40 in (2021) |
| October 26 | 90.0°F (1959) | 27.0°F (1971) | 1.70 in (1982) |
| October 27 | 90.0°F (2003) | 25.0°F (1970) | 0.26 in (2000) |
| October 28 | 91.9°F (2003) | 26.1°F (1954) | 1.43 in (1981) |
| October 29 | 93.0°F (2003) | 25.0°F (1970) | 0.68 in (1981) |
| October 30 | 84.9°F (1965) | 27.0°F (1954) | 1.14 in (1956) |
| October 31 | 84.9°F (1966) | 24.1°F (1971) | 0.68 in (2001) |