August weather in Kennewick, WA
The average temperature in Kennewick in August is 75.8°F (61.3°F–90.3°F). Average precipitation: 0.17 inches.
August is a summer month in Kennewick, and is warmer than the annual average of 55.1°F. Daily temperatures swing about 29°F between overnight low and afternoon high. Expect about 2 days with precipitation. Daylight averages about 13h 59m. For travel, August is hot.
Avg High
90.3°F
Avg Low
61.3°F
Precipitation
0.17 in
Daylight
13h 59m
August records in Kennewick
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 108.0°F (1913) | 48.0°F (1944) | 0.30 in (1998) |
| August 2 | 109.0°F (1898) | 45.0°F (1926) | 0.20 in (1911) |
| August 3 | 105.1°F (1939) | 46.9°F (1937) | 0.53 in (1976) |
| August 4 | 108.0°F (1961) | 46.9°F (1950) | 0.07 in (2024) |
| August 5 | 111.9°F (1904) | 43.0°F (1909) | 0.16 in (1911) |
| August 6 | 111.0°F (1904) | 45.0°F (1924) | 0.06 in (1991) |
| August 7 | 108.0°F (1898) | 44.1°F (1909) | 0.20 in (1991) |
| August 8 | 111.9°F (1898) | 45.0°F (1909) | 0.30 in (1907) |
| August 9 | 109.0°F (1898) | 42.1°F (1911) | 0.29 in (1899) |
| August 10 | 115.0°F (1898) | 48.0°F (1954) | 0.46 in (1945) |
| August 11 | 106.0°F (1898) | 46.9°F (1896) | 0.15 in (1999) |
| August 12 | 106.0°F (1977) | 45.0°F (1896) | 0.32 in (1922) |
| August 13 | 106.0°F (1977) | 45.0°F (1895) | 0.32 in (1913) |
| August 14 | 105.1°F (1992) | 45.0°F (1949) | 0.76 in (1979) |
| August 15 | 102.9°F (1992) | 43.0°F (1937) | 0.57 in (1912) |
| August 16 | 106.0°F (1942) | 42.1°F (1910) | 0.38 in (1972) |
| August 17 | 109.9°F (1977) | 45.0°F (1910) | 0.55 in (1993) |
| August 18 | 106.0°F (1897) | 44.1°F (1915) | 0.41 in (1975) |
| August 19 | 106.0°F (1897) | 42.1°F (1920) | 0.44 in (1924) |
| August 20 | 106.0°F (1897) | 42.1°F (1945) | 0.45 in (1918) |
| August 21 | 104.0°F (1897) | 42.1°F (1945) | 0.22 in (2002) |
| August 22 | 104.0°F (1897) | 41.0°F (1921) | 0.44 in (1992) |
| August 23 | 107.1°F (1894) | 44.1°F (1909) | 0.54 in (1975) |
| August 24 | 102.0°F (1912) | 41.0°F (1929) | 0.43 in (1977) |
| August 25 | 104.0°F (1898) | 41.0°F (1910) | 0.99 in (1920) |
| August 26 | 102.0°F (1934) | 41.0°F (1910) | 0.52 in (1899) |
| August 27 | 100.0°F (1972) | 42.1°F (1945) | 0.16 in (1968) |
| August 28 | 102.9°F (1972) | 45.0°F (1928) | 0.07 in (1968) |
| August 29 | 102.9°F (1967) | 37.9°F (1910) | 0.45 in (1920) |
| August 30 | 102.0°F (1967) | 41.0°F (1965) | 1.11 in (1977) |
| August 31 | 102.9°F (1967) | 37.0°F (1924) | 0.35 in (1912) |