August weather in Ottawa, OH
The average temperature in Ottawa in August is °F (°F–°F). Average precipitation: 3.47 inches.
August is a summer month in Ottawa, and is cooler than the annual average of 0°F. Expect about 8 days with precipitation. Daylight averages about 13h 39m.
Avg High
°F
Avg Low
°F
Precipitation
3.47 in
Daylight
13h 39m
August records in Ottawa
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | — | — | 0.82 in (2020) |
| August 2 | — | — | 1.47 in (2013) |
| August 3 | — | — | 0.92 in (2000) |
| August 4 | — | — | 1.68 in (2012) |
| August 5 | — | — | 1.75 in (2012) |
| August 6 | — | — | 2.30 in (2011) |
| August 7 | — | — | 1.68 in (1978) |
| August 8 | — | — | 0.77 in (1995) |
| August 9 | — | — | 1.77 in (2012) |
| August 10 | — | — | 0.89 in (1979) |
| August 11 | — | — | 1.27 in (1986) |
| August 12 | — | — | 1.17 in (1977) |
| August 13 | — | — | 1.81 in (1976) |
| August 14 | — | — | 1.17 in (1985) |
| August 15 | — | — | 2.80 in (1975) |
| August 16 | — | — | 4.85 in (1997) |
| August 17 | — | — | 2.60 in (1974) |
| August 18 | — | — | 1.56 in (1950) |
| August 19 | — | — | 8.14 in (2007) |
| August 20 | — | — | 1.37 in (1994) |
| August 21 | — | — | 1.07 in (1979) |
| August 22 | — | — | 1.01 in (1975) |
| August 23 | — | — | 1.88 in (2015) |
| August 24 | — | — | 1.56 in (2002) |
| August 25 | — | — | 1.31 in (2018) |
| August 26 | — | — | 1.62 in (1975) |
| August 27 | — | — | 2.07 in (1987) |
| August 28 | — | — | 1.53 in (1949) |
| August 29 | — | — | 2.25 in (2006) |
| August 30 | — | — | 1.60 in (1981) |
| August 31 | — | — | 1.62 in (2005) |