August weather in Ephrata, WA
The average temperature in Ephrata in August is 73.7°F (59.4°F–87.9°F). Average precipitation: 0.18 inches.
August is a summer month in Ephrata, and is warmer than the annual average of 51.5°F. Daily temperatures swing about 28.5°F between overnight low and afternoon high. Expect about 2 days with precipitation. Daylight averages about 14h 3m. For travel, August is a comfortable month to visit.
Avg High
87.9°F
Avg Low
59.4°F
Precipitation
0.18 in
Daylight
14h 3m
August records in Ephrata
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 106.0°F (2009) | 51.1°F (1987) | 0.16 in (1964) |
| August 2 | 104.0°F (2024) | 45.0°F (1956) | 0.13 in (1949) |
| August 3 | 107.1°F (1961) | 51.1°F (2016) | 0.25 in (1962) |
| August 4 | 115.0°F (1961) | 50.0°F (1962) | 0.12 in (1953) |
| August 5 | 102.9°F (1990) | 45.0°F (1969) | 0.41 in (2004) |
| August 6 | 102.9°F (1972) | 46.0°F (2002) | 0.12 in (2025) |
| August 7 | 104.0°F (1971) | 48.9°F (2020) | 0.77 in (1999) |
| August 8 | 105.1°F (1972) | 46.9°F (1949) | 0.71 in (2021) |
| August 9 | 107.1°F (1971) | 48.0°F (1995) | 0.02 in (2019) |
| August 10 | 107.1°F (1971) | 51.1°F (1993) | 0.34 in (2013) |
| August 11 | 106.0°F (1971) | 50.0°F (2007) | 0.14 in (1999) |
| August 12 | 104.0°F (1971) | 50.0°F (2000) | 0.21 in (1962) |
| August 13 | 105.1°F (2001) | 48.0°F (2020) | 0.06 in (2017) |
| August 14 | 102.9°F (1956) | 48.0°F (2009) | 0.23 in (1979) |
| August 15 | 104.0°F (2023) | 48.9°F (1993) | 0.68 in (2014) |
| August 16 | 105.1°F (2020) | 45.0°F (1976) | 0.09 in (1953) |
| August 17 | 106.0°F (2008) | 45.0°F (1976) | 0.15 in (2005) |
| August 18 | 108.0°F (2022) | 41.0°F (1995) | 0.48 in (1975) |
| August 19 | 102.9°F (1961) | 45.0°F (1980) | 0.25 in (1954) |
| August 20 | 102.0°F (1977) | 46.9°F (2007) | 0.45 in (1954) |
| August 21 | 102.0°F (2006) | 46.0°F (1960) | 0.93 in (1990) |
| August 22 | 100.9°F (1956) | 36.0°F (1960) | 0.20 in (1972) |
| August 23 | 104.0°F (1970) | 37.0°F (1992) | 0.09 in (1965) |
| August 24 | 104.0°F (1966) | 42.1°F (1992) | 0.24 in (1968) |
| August 25 | 102.0°F (1958) | 45.0°F (1960) | 0.30 in (1976) |
| August 26 | 97.0°F (1972) | 46.0°F (1991) | 0.31 in (1968) |
| August 27 | 100.9°F (1972) | 48.9°F (1954) | 0.20 in (1968) |
| August 28 | 102.9°F (1972) | 44.1°F (1966) | 0.38 in (1951) |
| August 29 | 100.0°F (1972) | 41.0°F (1980) | 0.46 in (2023) |
| August 30 | 102.0°F (1967) | 46.9°F (1959) | 0.32 in (1977) |
| August 31 | 100.9°F (1967) | 44.1°F (2006) | 0.08 in (1961) |