August weather in Hartline, WA
The average temperature in Hartline in August is 71.2°F (56.6°F–85.9°F). Average precipitation: 0.38 inches.
August is a summer month in Hartline, and is warmer than the annual average of 48.8°F. Daily temperatures swing about 29.3°F between overnight low and afternoon high. Daylight averages about 14h 5m. For travel, August is a comfortable month to visit.
Avg High
85.9°F
Avg Low
56.6°F
Precipitation
0.38 in
Daylight
14h 5m
August records in Hartline
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 104.0°F (1971) | 43.0°F (1937) | 0.17 in (1928) |
| August 2 | 102.9°F (1965) | 42.1°F (1956) | 1.08 in (1996) |
| August 3 | 104.0°F (1961) | 41.0°F (1954) | 0.62 in (1956) |
| August 4 | 107.1°F (1961) | 39.9°F (1957) | 0.47 in (1948) |
| August 5 | 109.9°F (1961) | 41.0°F (1933) | 0.50 in (2004) |
| August 6 | 102.0°F (1972) | 41.0°F (2002) | 0.24 in (1962) |
| August 7 | 104.0°F (1972) | 45.0°F (1944) | 0.21 in (1943) |
| August 8 | 104.0°F (1972) | 39.0°F (1949) | 0.11 in (1957) |
| August 9 | 102.9°F (1971) | 41.0°F (1954) | 0.04 in (1957) |
| August 10 | 105.1°F (2018) | 41.0°F (1932) | 0.60 in (2019) |
| August 11 | 104.0°F (1971) | 43.0°F (1932) | 0.10 in (1983) |
| August 12 | 102.0°F (1981) | 43.0°F (1957) | 0.32 in (1962) |
| August 13 | 102.0°F (1967) | 41.0°F (1937) | 0.42 in (1987) |
| August 14 | 102.0°F (1967) | 41.0°F (1935) | 0.81 in (1987) |
| August 15 | 102.0°F (1961) | 43.0°F (1949) | 0.35 in (1972) |
| August 16 | 104.0°F (1967) | 44.1°F (1984) | 0.24 in (1956) |
| August 17 | 104.0°F (1967) | 37.9°F (1973) | 0.50 in (1935) |
| August 18 | 104.0°F (1967) | 41.0°F (1947) | 0.26 in (1975) |
| August 19 | 104.0°F (1967) | 42.1°F (1974) | 0.15 in (1975) |
| August 20 | 104.0°F (1977) | 36.0°F (1945) | 0.96 in (1990) |
| August 21 | 99.0°F (1946) | 39.9°F (1947) | 0.12 in (1965) |
| August 22 | 100.9°F (1958) | 30.9°F (1960) | 0.16 in (1965) |
| August 23 | 102.9°F (1970) | 35.1°F (1937) | 0.30 in (1948) |
| August 24 | 100.9°F (1961) | 36.0°F (1929) | 0.59 in (1979) |
| August 25 | 100.9°F (1958) | 39.0°F (1960) | 0.40 in (1976) |
| August 26 | 102.9°F (1958) | 39.0°F (1942) | 0.69 in (1941) |
| August 27 | 98.1°F (1972) | 37.9°F (1981) | 0.79 in (1941) |
| August 28 | 100.0°F (1972) | 37.9°F (1960) | 0.27 in (1975) |
| August 29 | 98.1°F (1967) | 37.9°F (1942) | 0.13 in (1982) |
| August 30 | 100.0°F (1967) | 37.9°F (1932) | 0.52 in (1999) |
| August 31 | 100.0°F (1967) | 37.0°F (1971) | 0.13 in (1961) |