October weather in Portola, CA
The average temperature in Portola in October is 48.1°F (29.7°F–66.4°F). Average precipitation: 1.07 inches. Average snowfall is 0.4 inches.
October is a fall month in Portola, and is warmer than the annual average of 46.7°F. Daily temperatures swing about 36.7°F between overnight low and afternoon high. Expect about 4 days with precipitation. Daylight averages about 10h 55m. For travel, October is cool.
Avg High
66.4°F
Avg Low
29.7°F
Precipitation
1.07 in
Snow
0.4 in
October records in Portola
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| October 1 | 91.9°F (1980) | 14.0°F (1928) | 0.61 in (1935) |
| October 2 | 91.9°F (1933) | 16.0°F (1929) | 0.79 in (1989) |
| October 3 | 90.0°F (1933) | 12.0°F (1928) | 0.77 in (1967) |
| October 4 | 91.0°F (1933) | 12.0°F (1928) | 1.37 in (2010) |
| October 5 | 87.1°F (1933) | 12.0°F (1936) | 0.81 in (1993) |
| October 6 | 88.0°F (1980) | 14.0°F (1941) | 0.44 in (1975) |
| October 7 | 88.0°F (1980) | 12.9°F (1941) | 0.30 in (1923) |
| October 8 | 87.1°F (1980) | 12.9°F (1941) | 1.01 in (1918) |
| October 9 | 90.0°F (1996) | 14.0°F (1930) | 0.75 in (1997) |
| October 10 | 88.0°F (1934) | 14.0°F (1930) | 0.87 in (1975) |
| October 11 | 84.0°F (1921) | 14.0°F (1928) | 1.04 in (1984) |
| October 12 | 82.9°F (1933) | 12.0°F (1928) | 2.45 in (1962) |
| October 13 | 86.0°F (1921) | 12.0°F (1928) | 3.89 in (1962) |
| October 14 | 86.0°F (2015) | 12.0°F (1928) | 2.21 in (1962) |
| October 15 | 84.9°F (2015) | 15.1°F (1920) | 0.85 in (2025) |
| October 16 | 84.0°F (1918) | 16.0°F (1928) | 0.98 in (1947) |
| October 17 | 84.0°F (1921) | 14.0°F (1919) | 1.10 in (2016) |
| October 18 | 86.0°F (1921) | 12.0°F (1919) | 0.50 in (1920) |
| October 19 | 82.0°F (1921) | 12.9°F (1920) | 1.31 in (2004) |
| October 20 | 82.9°F (2023) | 15.1°F (1919) | 0.69 in (1957) |
| October 21 | 82.0°F (1915) | 14.0°F (1928) | 0.51 in (1943) |
| October 22 | 82.0°F (1929) | 12.0°F (1928) | 0.94 in (1989) |
| October 23 | 84.0°F (1933) | 17.1°F (1930) | 1.00 in (1989) |
| October 24 | 84.9°F (1959) | 12.0°F (1956) | 1.90 in (1951) |
| October 25 | 82.9°F (1929) | 12.0°F (1954) | 5.67 in (2021) |
| October 26 | 84.0°F (1929) | 10.0°F (1919) | 1.03 in (1950) |
| October 27 | 82.0°F (1978) | 12.0°F (1919) | 1.20 in (1927) |
| October 28 | 84.0°F (1918) | 5.0°F (1946) | 1.03 in (1999) |
| October 29 | 82.0°F (1929) | 3.0°F (1919) | 1.00 in (1933) |
| October 30 | 80.1°F (1929) | 9.0°F (1948) | 2.00 in (1945) |
| October 31 | 77.0°F (1949) | 9.0°F (1920) | 1.07 in (1945) |