August weather in Calistoga, CA
The average temperature in Calistoga in August is 71.7°F (54.3°F–89.1°F). Average precipitation: 0.03 inches.
August is a summer month in Calistoga, and is warmer than the annual average of 60.1°F. Daily temperatures swing about 34.8°F between overnight low and afternoon high. Expect about 0 days with precipitation. Daylight averages about 13h 30m. For travel, August is hot.
Avg High
89.1°F
Avg Low
54.3°F
Precipitation
0.03 in
Daylight
13h 30m
August records in Calistoga
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 108.0°F (1993) | 45.0°F (1932) | 0.00 in (1906) |
| August 2 | 105.1°F (1998) | 43.0°F (1991) | 0.08 in (2022) |
| August 3 | 104.0°F (1998) | 37.9°F (1982) | 0.00 in (1906) |
| August 4 | 109.0°F (1998) | 42.1°F (1933) | 0.00 in (1906) |
| August 5 | 104.0°F (1990) | 42.1°F (1932) | 0.08 in (2014) |
| August 6 | 106.0°F (1983) | 41.0°F (2002) | 0.00 in (1906) |
| August 7 | 105.1°F (1984) | 42.1°F (2002) | 0.00 in (1906) |
| August 8 | 107.1°F (1981) | 45.0°F (2002) | 0.00 in (1906) |
| August 9 | 105.1°F (1996) | 42.1°F (1932) | 0.04 in (1962) |
| August 10 | 106.0°F (1996) | 46.9°F (2004) | 0.00 in (1906) |
| August 11 | 108.0°F (1996) | 44.1°F (1933) | 0.52 in (1965) |
| August 12 | 108.0°F (1996) | 46.0°F (1931) | 0.07 in (1965) |
| August 13 | 109.0°F (1933) | 41.0°F (2007) | 0.00 in (1906) |
| August 14 | 106.0°F (2020) | 41.0°F (2007) | 0.31 in (1916) |
| August 15 | 106.0°F (2020) | 42.1°F (1982) | 0.40 in (1976) |
| August 16 | 108.0°F (2015) | 45.0°F (1993) | 0.04 in (1972) |
| August 17 | 106.0°F (2015) | 43.0°F (2007) | 0.05 in (1976) |
| August 18 | 105.1°F (2020) | 45.0°F (2007) | 0.73 in (1985) |
| August 19 | 104.0°F (1995) | 44.1°F (1993) | 0.23 in (1968) |
| August 20 | 102.0°F (1992) | 46.0°F (2005) | 0.83 in (1997) |
| August 21 | 102.9°F (1982) | 44.1°F (2001) | 0.48 in (1968) |
| August 22 | 102.9°F (2025) | 44.1°F (2010) | 0.20 in (1976) |
| August 23 | 105.1°F (1999) | 43.0°F (2005) | 0.00 in (1906) |
| August 24 | 109.0°F (1932) | 42.1°F (1990) | 0.09 in (2024) |
| August 25 | 111.0°F (1932) | 39.9°F (1982) | 0.02 in (1977) |
| August 26 | 106.0°F (1999) | 42.1°F (1982) | 0.18 in (1954) |
| August 27 | 102.9°F (1988) | 42.1°F (2005) | 0.02 in (1954) |
| August 28 | 105.1°F (1981) | 42.1°F (1931) | 1.63 in (1954) |
| August 29 | 105.1°F (2021) | 39.9°F (1931) | 0.03 in (2015) |
| August 30 | 102.9°F (1996) | 45.0°F (1982) | 0.27 in (1966) |
| August 31 | 105.1°F (1998) | 41.0°F (2008) | 0.08 in (1983) |