August weather in Grants Pass, OR
The average temperature in Grants Pass in August is 72.7°F (54.9°F–90.6°F). Average precipitation: 0.26 inches.
August is a summer month in Grants Pass, and is warmer than the annual average of 55.6°F. Daily temperatures swing about 35.7°F between overnight low and afternoon high. Expect about 2 days with precipitation. Daylight averages about 13h 44m. For travel, August is hot.
Avg High
90.6°F
Avg Low
54.9°F
Precipitation
0.26 in
Daylight
13h 44m
August records in Grants Pass
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 111.0°F (2015) | 39.9°F (1989) | 0.33 in (1976) |
| August 2 | 105.1°F (2014) | 41.0°F (1910) | 0.43 in (1913) |
| August 3 | 109.0°F (2017) | 39.0°F (1903) | 0.24 in (1976) |
| August 4 | 108.0°F (1987) | 41.0°F (1903) | 0.41 in (1976) |
| August 5 | 108.0°F (1998) | 39.0°F (1950) | 0.21 in (1961) |
| August 6 | 107.1°F (1902) | 39.0°F (1909) | 0.75 in (1976) |
| August 7 | 107.1°F (1972) | 37.9°F (1893) | 0.51 in (1962) |
| August 8 | 106.0°F (1978) | 39.9°F (1894) | 1.45 in (1907) |
| August 9 | 106.0°F (1928) | 41.0°F (1900) | 0.72 in (1962) |
| August 10 | 106.0°F (1996) | 41.0°F (1949) | 0.53 in (2000) |
| August 11 | 108.0°F (1971) | 41.0°F (1908) | 0.72 in (1999) |
| August 12 | 108.0°F (1914) | 36.0°F (1932) | 0.47 in (1965) |
| August 13 | 106.0°F (2025) | 34.0°F (1932) | 0.74 in (1899) |
| August 14 | 106.0°F (2016) | 32.0°F (1932) | 0.59 in (1918) |
| August 15 | 111.0°F (2023) | 36.0°F (1893) | 0.49 in (1976) |
| August 16 | 111.0°F (2020) | 33.1°F (1932) | 0.27 in (1972) |
| August 17 | 109.0°F (2023) | 30.0°F (1932) | 0.33 in (1916) |
| August 18 | 107.1°F (2022) | 37.0°F (1995) | 0.49 in (2024) |
| August 19 | 109.0°F (2016) | 37.0°F (1916) | 0.33 in (1968) |
| August 20 | 111.0°F (2016) | 30.0°F (1911) | 0.63 in (1993) |
| August 21 | 106.0°F (2016) | 36.0°F (1906) | 0.35 in (1978) |
| August 22 | 102.9°F (1896) | 39.0°F (1899) | 0.60 in (2019) |
| August 23 | 106.0°F (2025) | 39.9°F (1904) | 0.30 in (1948) |
| August 24 | 106.0°F (2025) | 36.0°F (1910) | 0.51 in (2024) |
| August 25 | 106.0°F (2025) | 36.0°F (1908) | 0.60 in (1954) |
| August 26 | 104.0°F (2010) | 19.9°F (1901) | 0.17 in (1966) |
| August 27 | 105.1°F (1972) | 37.0°F (1907) | 0.53 in (2025) |
| August 28 | 105.1°F (1915) | 35.1°F (1905) | 0.46 in (1941) |
| August 29 | 102.9°F (1915) | 33.1°F (1910) | 0.39 in (1935) |
| August 30 | 105.1°F (1987) | 33.1°F (1908) | 0.69 in (1983) |
| August 31 | 105.1°F (1987) | 34.0°F (1905) | 0.38 in (1984) |