Weather history and climate summary information is available for the following locations:
- Baltimore
- Camp Springs
- Patuxent River
Warmest April Days
The warmest April days in Maryland are:
| Camp Springs, Maryland | 1976 | 96.1°F |
| Baltimore, Maryland | 1960 | 94.3°F |
| Camp Springs, Maryland | 1960 | 93.4°F |
| Baltimore, Maryland | 1976 | 93°F |
| Baltimore, Maryland | 1985 | 93°F |
Coldest April Days
The coldest April days in Maryland were:
| Baltimore, Maryland | 1985 | 21.9°F |
| Baltimore, Maryland | 1982 | 21.9°F |
| Camp Springs, Maryland | 1950 | 23.4°F |
| Camp Springs, Maryland | 1982 | 24.3°F |
| Baltimore, Maryland | 1950 | 25°F |
Wettest April Days
The wettest single days in April occurred:
| Camp Springs, Maryland | 2008 | 4.6 inches |
| Patuxent River, Maryland | 1983 | 3.1 inches |
| Patuxent River, Maryland | 2012 | 2.4 inches |
| Camp Springs, Maryland | 1989 | 2.3 inches |
| Baltimore, Maryland | 1952 | 2.2 inches |