Weather history and climate summary information is available for the following locations:
- Altus
- Fort Sill
- Oklahoma City
- Tulsa
Warmest October Days
The warmest October days in Oklahoma are:
| Fort Sill, Oklahoma | 1977 | 100.9°F |
| Oklahoma City, Oklahoma | 1977 | 99.9°F |
| Fort Sill, Oklahoma | 1951 | 99.9°F |
| Tulsa, Oklahoma | 1979 | 99°F |
| Altus, Oklahoma | 1977 | 99°F |
Coldest October Days
The coldest October days in Oklahoma were:
| Oklahoma City, Oklahoma | 1993 | 17.1°F |
| Altus, Oklahoma | 1993 | 19.9°F |
| Fort Sill, Oklahoma | 1993 | 19.9°F |
| Tulsa, Oklahoma | 1993 | 19.9°F |
| Oklahoma City, Oklahoma | 1993 | 21.9°F |
Wettest October Days
The wettest single days in October occurred:
| Oklahoma City, Oklahoma | 1983 | 7.9 inches |
| Oklahoma City, Oklahoma | 1983 | 6 inches |
| Fort Sill, Oklahoma | 1983 | 5.5 inches |
| Altus, Oklahoma | 1983 | 5.3 inches |
| Tulsa, Oklahoma | 1998 | 5.1 inches |