October weather in St. Marys, OH
The average temperature in St. Marys in October is °F (°F–°F). Average precipitation: 2.73 inches.
October is a fall month in St. Marys, and is cooler than the annual average of 0°F. Expect about 8 days with precipitation. Daylight averages about 10h 53m.
Avg High
°F
Avg Low
°F
Precipitation
2.73 in
Daylight
10h 53m
October records in St. Marys
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| October 1 | — | — | 2.00 in (1945) |
| October 2 | — | — | 1.57 in (2009) |
| October 3 | — | — | 0.75 in (1962) |
| October 4 | — | — | 1.48 in (1954) |
| October 5 | — | — | 1.90 in (1983) |
| October 6 | — | — | 2.60 in (1995) |
| October 7 | — | — | 0.72 in (2025) |
| October 8 | — | — | 1.12 in (2001) |
| October 9 | — | — | 2.52 in (1950) |
| October 10 | — | — | 1.38 in (1950) |
| October 11 | — | — | 1.16 in (1959) |
| October 12 | — | — | 0.90 in (2001) |
| October 13 | — | — | 1.76 in (1983) |
| October 14 | — | — | 1.17 in (2010) |
| October 15 | — | — | 1.73 in (1943) |
| October 16 | — | — | 1.94 in (1946) |
| October 17 | — | — | 2.22 in (2006) |
| October 18 | — | — | 1.17 in (1975) |
| October 19 | — | — | 0.70 in (2020) |
| October 20 | — | — | 2.20 in (2011) |
| October 21 | — | — | 1.75 in (1965) |
| October 22 | — | — | 1.60 in (1983) |
| October 23 | — | — | 0.82 in (2007) |
| October 24 | — | — | 1.53 in (1951) |
| October 25 | — | — | 1.36 in (1991) |
| October 26 | — | — | 0.64 in (2004) |
| October 27 | — | — | 1.05 in (1939) |
| October 28 | — | — | 1.12 in (2015) |
| October 29 | — | — | 1.11 in (2020) |
| October 30 | — | — | 0.88 in (2006) |
| October 31 | — | — | 1.12 in (2019) |