October weather in Ontario, OH
The average temperature in Ontario in October is 52.5°F (41.7°F–63.3°F). Average precipitation: 3.46 inches.
October is a fall month in Ontario, and is warmer than the annual average of 50.3°F. Daily temperatures swing about 21.6°F between overnight low and afternoon high. Expect about 12 days with precipitation. Daylight averages about 10h 53m. For travel, October is a comfortable month to visit.
Avg High
63.3°F
Avg Low
41.7°F
Precipitation
3.46 in
Daylight
10h 53m
October records in Ontario
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| October 1 | 88.0°F (2019) | 27.0°F (2009) | 2.12 in (1919) |
| October 2 | 86.0°F (1927) | 26.1°F (1947) | 1.38 in (2009) |
| October 3 | 88.0°F (1953) | 27.0°F (1975) | 1.29 in (1969) |
| October 4 | 87.1°F (1951) | 25.0°F (1974) | 1.51 in (1990) |
| October 5 | 87.1°F (1951) | 21.0°F (1965) | 2.02 in (1995) |
| October 6 | 86.0°F (1941) | 26.1°F (1958) | 1.83 in (1941) |
| October 7 | 86.0°F (1939) | 21.9°F (1952) | 1.29 in (1941) |
| October 8 | 87.1°F (1939) | 21.0°F (1952) | 1.34 in (1930) |
| October 9 | 86.0°F (2018) | 21.9°F (1951) | 1.42 in (2017) |
| October 10 | 82.9°F (1949) | 21.9°F (1956) | 0.96 in (1950) |
| October 11 | 89.1°F (1928) | 15.1°F (1964) | 0.60 in (1919) |
| October 12 | 90.0°F (1928) | 21.0°F (1964) | 0.64 in (1946) |
| October 13 | 82.0°F (1928) | 21.9°F (1946) | 1.33 in (1999) |
| October 14 | 82.9°F (1930) | 21.0°F (1988) | 1.05 in (2003) |
| October 15 | 86.0°F (1928) | 19.0°F (1939) | 1.20 in (2020) |
| October 16 | 84.9°F (1938) | 21.0°F (1937) | 0.94 in (1966) |
| October 17 | 84.9°F (1938) | 23.0°F (1977) | 1.80 in (2006) |
| October 18 | 84.9°F (1938) | 21.0°F (1939) | 2.05 in (1937) |
| October 19 | 82.9°F (1953) | 25.0°F (1958) | 2.05 in (1917) |
| October 20 | 80.1°F (1953) | 17.1°F (1972) | 0.62 in (1961) |
| October 21 | 80.1°F (1953) | 12.9°F (1952) | 1.33 in (1929) |
| October 22 | 79.0°F (1963) | 18.0°F (1952) | 1.29 in (1929) |
| October 23 | 78.1°F (1931) | 21.0°F (1944) | 1.22 in (2001) |
| October 24 | 79.0°F (1963) | 17.1°F (1964) | 1.15 in (1957) |
| October 25 | 79.0°F (1963) | 18.0°F (1960) | 0.60 in (2002) |
| October 26 | 81.0°F (1927) | 19.9°F (1962) | 0.99 in (1936) |
| October 27 | 82.0°F (1927) | 16.0°F (1949) | 1.88 in (1939) |
| October 28 | 82.0°F (1927) | 17.1°F (1976) | 1.58 in (2015) |
| October 29 | 79.0°F (1922) | 15.1°F (1965) | 1.75 in (2020) |
| October 30 | 80.1°F (1927) | 18.0°F (1966) | 1.05 in (2012) |
| October 31 | 77.0°F (1933) | 21.0°F (1988) | 1.23 in (2013) |