August weather in Westerville, OH
The average temperature in Westerville in August is 73.8°F (63.1°F–84.6°F). Average precipitation: 3.64 inches.
August is a summer month in Westerville, and is warmer than the annual average of 53.9°F. Daily temperatures swing about 21.5°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 13h 35m. For travel, August is a comfortable month to visit.
Avg High
84.6°F
Avg Low
63.1°F
Precipitation
3.64 in
Daylight
13h 35m
August records in Westerville
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 97.0°F (1999) | 46.0°F (1952) | 0.92 in (1968) |
| August 2 | 98.1°F (1991) | 46.0°F (1976) | 1.92 in (2024) |
| August 3 | 98.1°F (1991) | 45.0°F (1976) | 2.78 in (1964) |
| August 4 | 95.0°F (1987) | 21.0°F (2000) | 1.38 in (1982) |
| August 5 | 93.9°F (1956) | 45.0°F (1972) | 2.00 in (2005) |
| August 6 | 91.9°F (1968) | 44.1°F (1957) | 1.30 in (1989) |
| August 7 | 93.0°F (2007) | 46.0°F (1957) | 3.54 in (1976) |
| August 8 | 93.9°F (2007) | 46.0°F (1989) | 1.48 in (2013) |
| August 9 | 96.1°F (2007) | 48.9°F (1964) | 1.32 in (1966) |
| August 10 | 91.9°F (1980) | 44.1°F (1972) | 1.55 in (2023) |
| August 11 | 93.0°F (1988) | 41.0°F (1999) | 1.70 in (1966) |
| August 12 | 93.9°F (2005) | 42.1°F (1967) | 1.95 in (1973) |
| August 13 | 95.0°F (2005) | 43.0°F (1964) | 0.64 in (1997) |
| August 14 | 95.0°F (2005) | 39.9°F (1964) | 1.59 in (1994) |
| August 15 | 95.0°F (1959) | 37.9°F (1964) | 1.06 in (1957) |
| August 16 | 95.0°F (1965) | 41.0°F (1964) | 0.94 in (1952) |
| August 17 | 98.1°F (1988) | 44.1°F (1976) | 2.10 in (1997) |
| August 18 | 98.1°F (1988) | 45.0°F (1962) | 3.26 in (1972) |
| August 19 | 97.0°F (1983) | 44.1°F (1964) | 1.06 in (2001) |
| August 20 | 100.9°F (1983) | 46.0°F (1964) | 1.33 in (2009) |
| August 21 | 100.0°F (1983) | 45.0°F (1969) | 1.93 in (2022) |
| August 22 | 96.1°F (1983) | 39.9°F (1982) | 2.52 in (2014) |
| August 23 | 93.9°F (1959) | 45.0°F (1952) | 1.11 in (1979) |
| August 24 | 93.9°F (1959) | 44.1°F (1952) | 2.34 in (2023) |
| August 25 | 97.0°F (1959) | 44.1°F (1977) | 0.83 in (2021) |
| August 26 | 96.1°F (1959) | 43.0°F (1958) | 0.95 in (2021) |
| August 27 | 95.0°F (1953) | 44.1°F (1968) | 2.10 in (2003) |
| August 28 | 97.0°F (1953) | 42.1°F (1968) | 1.17 in (1992) |
| August 29 | 98.1°F (1953) | 36.0°F (1982) | 1.79 in (1976) |
| August 30 | 99.0°F (1953) | 41.0°F (1986) | 2.56 in (2003) |
| August 31 | 97.0°F (1953) | 44.1°F (1976) | 2.79 in (2005) |