August weather in Fairfield, ID
The average temperature in Fairfield in August is 65.5°F (48.3°F–82.8°F). Average precipitation: 0.35 inches.
August is a summer month in Fairfield, and is warmer than the annual average of 42.1°F. Daily temperatures swing about 34.5°F between overnight low and afternoon high. Daylight averages about 13h 47m. For travel, August is a comfortable month to visit.
Avg High
82.8°F
Avg Low
48.3°F
Precipitation
0.35 in
Daylight
13h 47m
August records in Fairfield
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 98.1°F (2000) | 35.1°F (1987) | 0.36 in (1959) |
| August 2 | 97.0°F (2024) | 30.9°F (1991) | 0.18 in (1976) |
| August 3 | 97.0°F (1949) | 30.0°F (1956) | 0.41 in (2000) |
| August 4 | 96.1°F (1961) | 35.1°F (1955) | 1.00 in (1965) |
| August 5 | 95.0°F (1949) | 36.0°F (1985) | 0.71 in (2014) |
| August 6 | 100.0°F (2024) | 33.1°F (1950) | 0.29 in (1970) |
| August 7 | 98.1°F (1983) | 34.0°F (1969) | 0.20 in (2015) |
| August 8 | 97.0°F (1983) | 34.0°F (1967) | 0.42 in (2015) |
| August 9 | 98.1°F (2018) | 30.0°F (1985) | 0.16 in (1981) |
| August 10 | 98.1°F (1969) | 30.0°F (1985) | 0.80 in (1983) |
| August 11 | 97.0°F (1996) | 28.9°F (1985) | 0.30 in (1983) |
| August 12 | 97.0°F (1992) | 28.9°F (1985) | 0.43 in (1965) |
| August 13 | 97.0°F (1992) | 33.1°F (1985) | 0.53 in (1979) |
| August 14 | 96.1°F (1994) | 30.0°F (1985) | 0.76 in (1988) |
| August 15 | 98.1°F (2003) | 30.0°F (1985) | 0.29 in (1976) |
| August 16 | 100.0°F (1962) | 33.1°F (1968) | 0.20 in (1976) |
| August 17 | 96.1°F (1967) | 30.0°F (1985) | 1.03 in (1968) |
| August 18 | 93.9°F (1967) | 30.0°F (1978) | 0.47 in (2024) |
| August 19 | 93.9°F (1961) | 28.0°F (1995) | 0.94 in (1983) |
| August 20 | 93.9°F (1967) | 32.0°F (1984) | 0.83 in (1968) |
| August 21 | 95.0°F (1969) | 26.1°F (1984) | 0.91 in (2023) |
| August 22 | 98.1°F (1969) | 30.9°F (1954) | 0.80 in (2014) |
| August 23 | 98.1°F (1969) | 26.1°F (1985) | 0.76 in (2014) |
| August 24 | 100.0°F (1990) | 30.9°F (1985) | 0.11 in (1951) |
| August 25 | 99.0°F (1990) | 28.0°F (1993) | 0.32 in (1961) |
| August 26 | 96.1°F (1990) | 23.0°F (1992) | 0.31 in (2025) |
| August 27 | 95.0°F (1981) | 28.9°F (1989) | 0.26 in (1991) |
| August 28 | 97.0°F (1988) | 27.0°F (1960) | 0.21 in (1991) |
| August 29 | 93.0°F (1988) | 27.0°F (1989) | 1.02 in (1971) |
| August 30 | 93.0°F (1954) | 27.0°F (1951) | 0.16 in (1957) |
| August 31 | 93.0°F (1955) | 27.0°F (1965) | 0.48 in (1984) |