Weather history and climate summary information is available for the following locations:
- Baltimore
- Camp Springs
- Patuxent River
Warmest July Days
The warmest July days in Maryland are:
| Baltimore, Maryland | 2011 | 106°F |
| Baltimore, Maryland | 2010 | 105.1°F |
| Baltimore, Maryland | 1988 | 104°F |
| Camp Springs, Maryland | 1988 | 104°F |
| Patuxent River, Maryland | 2012 | 104°F |
Coldest July Days
The coldest July days in Maryland were:
| Camp Springs, Maryland | 1988 | 46.9°F |
| Camp Springs, Maryland | 1979 | 48°F |
| Baltimore, Maryland | 2001 | 50°F |
| Baltimore, Maryland | 1988 | 50°F |
| Baltimore, Maryland | 1979 | 50.9°F |
Wettest July Days
The wettest single days in July occurred:
| Baltimore, Maryland | 1952 | 5.9 inches |
| Patuxent River, Maryland | 1960 | 4.6 inches |
| Patuxent River, Maryland | 1989 | 4.3 inches |
| Baltimore, Maryland | 1956 | 4.3 inches |
| Patuxent River, Maryland | 1990 | 3.5 inches |