Weather history and climate summary information is available for the following locations:
- Eugene
- Medford
- Pendleton
- Portland
Warmest October Days
The warmest October days in Oregon are:
| Medford, Oregon | 1980 | 99°F |
| Medford, Oregon | 1987 | 98.1°F |
| Medford, Oregon | 1988 | 98.1°F |
| Medford, Oregon | 1979 | 96.1°F |
| Medford, Oregon | 1991 | 95°F |
Coldest October Days
The coldest October days in Oregon were:
| Pendleton, Oregon | 2002 | 14°F |
| Pendleton, Oregon | 2003 | 15.1°F |
| Eugene, Oregon | 2002 | 17.1°F |
| Eugene, Oregon | 2006 | 17.1°F |
| Pendleton, Oregon | 2006 | 18°F |
Wettest October Days
The wettest single days in October occurred:
| Medford, Oregon | 1992 | 4.4 inches |
| Portland, Oregon | 1994 | 4.2 inches |
| Portland, Oregon | 1982 | 2.2 inches |
| Eugene, Oregon | 1990 | 1.9 inches |
| Pendleton, Oregon | 1982 | 1.8 inches |