Weather history and climate summary information is available for the following locations:
- Baltimore
- Camp Springs
- Patuxent River
Warmest October Days
The warmest October days in Maryland are:
| Baltimore, Maryland | 2007 | 93.9°F |
| Patuxent River, Maryland | 1968 | 93.4°F |
| Camp Springs, Maryland | 2007 | 92.5°F |
| Baltimore, Maryland | 1954 | 92.3°F |
| Baltimore, Maryland | 1951 | 92.3°F |
Coldest October Days
The coldest October days in Maryland were:
| Baltimore, Maryland | 1979 | 19.9°F |
| Baltimore, Maryland | 2001 | 26.1°F |
| Baltimore, Maryland | 1952 | 26.4°F |
| Baltimore, Maryland | 1988 | 27°F |
| Baltimore, Maryland | 1976 | 27°F |
Wettest October Days
The wettest single days in October occurred:
| Baltimore, Maryland | 2012 | 5.3 inches |
| Patuxent River, Maryland | 2012 | 4.9 inches |
| Baltimore, Maryland | 2005 | 4.3 inches |
| Baltimore, Maryland | 2010 | 4.1 inches |
| Baltimore, Maryland | 2007 | 3.7 inches |