Weather history and climate summary information is available for the following locations:
- Boston
- Chicopee Falls
- Nantucket
Warmest July Days
The warmest July days in Massachusetts are:
| Boston, Massachusetts | 2011 | 102.9°F |
| Boston, Massachusetts | 1977 | 102°F |
| Chicopee Falls, Massachusetts | 1966 | 101.3°F |
| Chicopee Falls, Massachusetts | 2010 | 101.1°F |
| Chicopee Falls, Massachusetts | 2011 | 101.1°F |
Coldest July Days
The coldest July days in Massachusetts were:
| Chicopee Falls, Massachusetts | 1965 | 42.4°F |
| Chicopee Falls, Massachusetts | 1971 | 43.3°F |
| Chicopee Falls, Massachusetts | 1966 | 43.3°F |
| Chicopee Falls, Massachusetts | 2007 | 43.3°F |
| Chicopee Falls, Massachusetts | 1974 | 44.1°F |
Wettest July Days
The wettest single days in July occurred:
| Chicopee Falls, Massachusetts | 1979 | 4.5 inches |
| Chicopee Falls, Massachusetts | 1975 | 3.6 inches |
| Chicopee Falls, Massachusetts | 1985 | 3.6 inches |
| Chicopee Falls, Massachusetts | 1996 | 2.7 inches |
| Chicopee Falls, Massachusetts | 2008 | 2.6 inches |