Weather history and climate summary information is available for the following locations:
- Boston
- Chicopee Falls
- Nantucket
Warmest August Days
The warmest August days in Massachusetts are:
| Boston, Massachusetts | 2002 | 100.9°F |
| Chicopee Falls, Massachusetts | 1955 | 100.2°F |
| Boston, Massachusetts | 1955 | 100°F |
| Boston, Massachusetts | 1948 | 100°F |
| Boston, Massachusetts | 1975 | 100°F |
Coldest August Days
The coldest August days in Massachusetts were:
| Chicopee Falls, Massachusetts | 1965 | 30.4°F |
| Chicopee Falls, Massachusetts | 1982 | 36°F |
| Chicopee Falls, Massachusetts | 1976 | 36°F |
| Chicopee Falls, Massachusetts | 1986 | 37°F |
| Chicopee Falls, Massachusetts | 1964 | 37.4°F |
Wettest August Days
The wettest single days in August occurred:
| Boston, Massachusetts | 1985 | 4.7 inches |
| Chicopee Falls, Massachusetts | 1990 | 4.5 inches |
| Chicopee Falls, Massachusetts | 1985 | 3.6 inches |
| Nantucket, Massachusetts | 2009 | 3.4 inches |
| Chicopee Falls, Massachusetts | 1991 | 3.3 inches |