August weather in Sierra Vista, AZ
The average temperature in Sierra Vista in August is 75.5°F (61.5°F–89.5°F). Average precipitation: 3.31 inches.
August is a summer month in Sierra Vista, and is warmer than the annual average of 61.6°F. Daily temperatures swing about 28°F between overnight low and afternoon high. Expect about 11 days with precipitation. Daylight averages about 13h 9m. For travel, August is hot.
Avg High
89.5°F
Avg Low
61.5°F
Precipitation
3.31 in
Daylight
13h 9m
August records in Sierra Vista
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 102.9°F (2020) | 55.9°F (2025) | 0.89 in (1994) |
| August 2 | 102.9°F (2020) | 60.1°F (1989) | 0.90 in (1997) |
| August 3 | 100.0°F (1995) | 59.0°F (1985) | 1.92 in (1985) |
| August 4 | 102.0°F (1995) | 59.0°F (1991) | 0.60 in (1987) |
| August 5 | 102.9°F (2023) | 60.1°F (2013) | 1.10 in (1999) |
| August 6 | 105.1°F (2023) | 60.1°F (1989) | 0.30 in (1982) |
| August 7 | 104.0°F (2025) | 59.0°F (2013) | 1.62 in (2000) |
| August 8 | 102.9°F (2025) | 59.0°F (2022) | 1.06 in (2022) |
| August 9 | 100.9°F (2012) | 60.1°F (1989) | 1.30 in (1999) |
| August 10 | 100.0°F (2012) | 59.0°F (1989) | 1.46 in (1999) |
| August 11 | 100.9°F (2020) | 59.0°F (2004) | 0.64 in (1992) |
| August 12 | 99.0°F (2003) | 57.0°F (1985) | 0.70 in (2006) |
| August 13 | 100.9°F (2012) | 59.0°F (1985) | 1.95 in (2005) |
| August 14 | 100.9°F (2020) | 57.0°F (1990) | 0.89 in (2005) |
| August 15 | 102.9°F (2020) | 57.9°F (1985) | 1.24 in (1995) |
| August 16 | 102.9°F (2015) | 57.9°F (1985) | 0.93 in (1983) |
| August 17 | 102.0°F (2020) | 55.9°F (2017) | 1.25 in (1986) |
| August 18 | 102.9°F (2015) | 55.9°F (2017) | 0.83 in (2000) |
| August 19 | 99.0°F (2020) | 57.9°F (1984) | 0.61 in (2005) |
| August 20 | 100.9°F (2020) | 57.0°F (2021) | 0.68 in (2014) |
| August 21 | 102.0°F (2019) | 54.0°F (2004) | 0.98 in (2022) |
| August 22 | 100.0°F (2019) | 55.9°F (2004) | 0.61 in (1988) |
| August 23 | 97.0°F (2011) | 55.9°F (1983) | 2.84 in (1992) |
| August 24 | 100.0°F (2020) | 57.0°F (1984) | 1.53 in (1988) |
| August 25 | 102.0°F (2011) | 55.9°F (1989) | 1.96 in (1987) |
| August 26 | 99.0°F (2011) | 55.0°F (1987) | 0.46 in (1991) |
| August 27 | 100.0°F (2011) | 53.1°F (1987) | 1.39 in (2014) |
| August 28 | 104.0°F (2020) | 57.0°F (2017) | 1.47 in (1995) |
| August 29 | 100.0°F (2020) | 57.0°F (2000) | 0.98 in (2019) |
| August 30 | 99.0°F (2023) | 53.1°F (1992) | 0.85 in (1993) |
| August 31 | 100.9°F (2011) | 53.1°F (1992) | 1.45 in (1994) |