August weather in Hartford, WI
The average temperature in Hartford in August is 67.4°F (56.2°F–78.6°F). Average precipitation: 3.74 inches.
August is a summer month in Hartford, and is warmer than the annual average of 44.7°F. Daily temperatures swing about 22.4°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 13h 47m. For travel, August is one of the best months of the year to visit.
Avg High
78.6°F
Avg Low
56.2°F
Precipitation
3.74 in
Daylight
13h 47m
August records in Hartford
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 100.9°F (1988) | 41.0°F (1965) | 2.15 in (1897) |
| August 2 | 98.1°F (1988) | 37.9°F (1965) | 1.56 in (2024) |
| August 3 | 96.1°F (1964) | 45.0°F (1985) | 1.67 in (1960) |
| August 4 | 97.0°F (1988) | 42.1°F (1972) | 1.40 in (1989) |
| August 5 | 96.1°F (1900) | 43.0°F (1978) | 1.49 in (1956) |
| August 6 | 96.1°F (1900) | 39.9°F (1992) | 1.50 in (2000) |
| August 7 | 97.0°F (2001) | 44.1°F (1975) | 2.44 in (1980) |
| August 8 | 98.1°F (1900) | 43.0°F (1976) | 1.67 in (1982) |
| August 9 | 95.0°F (1900) | 41.0°F (1972) | 1.57 in (2010) |
| August 10 | 96.1°F (1899) | 39.9°F (1982) | 2.34 in (2025) |
| August 11 | 91.9°F (1900) | 39.9°F (1967) | 2.55 in (2025) |
| August 12 | 93.0°F (1988) | 39.0°F (1967) | 0.97 in (2025) |
| August 13 | 91.0°F (1965) | 39.9°F (1982) | 2.85 in (2002) |
| August 14 | 93.0°F (1988) | 39.0°F (1964) | 1.52 in (1971) |
| August 15 | 90.0°F (1958) | 39.0°F (1979) | 2.43 in (2023) |
| August 16 | 100.0°F (1988) | 37.0°F (1899) | 2.38 in (1987) |
| August 17 | 100.0°F (1988) | 39.9°F (2012) | 3.96 in (1983) |
| August 18 | 96.1°F (1955) | 37.9°F (2012) | 1.30 in (1988) |
| August 19 | 98.1°F (1900) | 39.9°F (1981) | 2.00 in (2007) |
| August 20 | 97.0°F (1900) | 42.1°F (1897) | 2.61 in (1968) |
| August 21 | 97.0°F (1955) | 39.9°F (2004) | 1.68 in (2022) |
| August 22 | 95.0°F (1959) | 41.0°F (1967) | 1.42 in (2001) |
| August 23 | 93.9°F (1962) | 42.1°F (1987) | 2.05 in (1975) |
| August 24 | 96.1°F (2023) | 37.9°F (1984) | 1.74 in (1997) |
| August 25 | 93.9°F (1959) | 37.9°F (1984) | 2.12 in (2022) |
| August 26 | 93.9°F (1953) | 41.0°F (1964) | 1.44 in (1986) |
| August 27 | 95.0°F (1899) | 36.0°F (1986) | 4.60 in (2018) |
| August 28 | 96.1°F (1899) | 39.0°F (1982) | 1.26 in (2018) |
| August 29 | 96.1°F (1984) | 37.0°F (1965) | 1.59 in (2015) |
| August 30 | 96.1°F (1984) | 41.0°F (1897) | 0.66 in (1993) |
| August 31 | 95.0°F (1953) | 37.0°F (1967) | 1.79 in (1956) |