August weather in Duvall, WA
The average temperature in Duvall in August is 63.1°F (51.5°F–74.7°F). Average precipitation: 1.30 inches.
August is a summer month in Duvall, and is warmer than the annual average of 49.5°F. Daily temperatures swing about 23.2°F between overnight low and afternoon high. Expect about 6 days with precipitation. Daylight averages about 14h 5m. For travel, August is one of the best months of the year to visit.
Avg High
74.7°F
Avg Low
51.5°F
Precipitation
1.30 in
Daylight
14h 5m
August records in Duvall
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 93.9°F (1959) | 44.1°F (1939) | 0.62 in (1940) |
| August 2 | 88.0°F (1968) | 42.1°F (1946) | 0.51 in (2013) |
| August 3 | 91.0°F (1939) | 44.1°F (2002) | 0.47 in (1962) |
| August 4 | 97.0°F (1952) | 44.1°F (2011) | 0.36 in (1962) |
| August 5 | 96.1°F (1952) | 43.0°F (1950) | 0.86 in (1933) |
| August 6 | 87.1°F (1952) | 44.1°F (1939) | 0.69 in (1995) |
| August 7 | 91.9°F (1981) | 44.1°F (1946) | 0.91 in (1976) |
| August 8 | 99.0°F (1960) | 41.0°F (2014) | 0.79 in (2016) |
| August 9 | 100.9°F (1931) | 39.9°F (1955) | 0.37 in (1965) |
| August 10 | 99.0°F (1960) | 44.1°F (1955) | 0.61 in (1965) |
| August 11 | 95.0°F (1981) | 41.0°F (1955) | 0.78 in (1983) |
| August 12 | 93.9°F (1977) | 45.0°F (1929) | 0.25 in (1995) |
| August 13 | 91.9°F (1977) | 42.1°F (1931) | 0.95 in (2014) |
| August 14 | 91.0°F (2021) | 43.0°F (1964) | 1.32 in (1979) |
| August 15 | 95.0°F (1942) | 41.0°F (1937) | 0.69 in (2025) |
| August 16 | 93.0°F (1967) | 39.0°F (1935) | 1.32 in (1978) |
| August 17 | 95.0°F (1977) | 39.9°F (1969) | 1.18 in (1995) |
| August 18 | 91.0°F (1977) | 41.0°F (1946) | 1.02 in (1975) |
| August 19 | 91.0°F (1942) | 39.0°F (1964) | 0.91 in (2000) |
| August 20 | 90.0°F (1958) | 39.9°F (1945) | 0.50 in (2007) |
| August 21 | 91.0°F (1958) | 39.9°F (1973) | 0.90 in (2004) |
| August 22 | 91.0°F (1958) | 39.9°F (1973) | 1.42 in (2001) |
| August 23 | 88.0°F (1958) | 39.0°F (1973) | 1.10 in (1977) |
| August 24 | 91.9°F (1958) | 35.1°F (2010) | 0.73 in (2024) |
| August 25 | 91.0°F (1958) | 42.1°F (1964) | 1.03 in (1977) |
| August 26 | 89.1°F (1933) | 43.0°F (1949) | 1.70 in (1960) |
| August 27 | 89.1°F (1986) | 43.0°F (2017) | 1.94 in (1980) |
| August 28 | 93.9°F (1967) | 39.9°F (1938) | 0.84 in (1942) |
| August 29 | 91.9°F (1996) | 41.0°F (1937) | 0.97 in (1977) |
| August 30 | 91.9°F (1944) | 39.9°F (1965) | 1.54 in (1947) |
| August 31 | 91.0°F (1998) | 41.0°F (1969) | 0.75 in (2010) |