Weather history and climate summary information is available for the following locations:
- Washington
Warmest July Days
The warmest July days in District of Columbia are:
| Washington, District of Columbia | 2012 | 105.1°F |
| Washington, District of Columbia | 2011 | 104°F |
| Washington, District of Columbia | 1988 | 104°F |
| Washington, District of Columbia | 1980 | 102.9°F |
| Washington, District of Columbia | 1954 | 102.4°F |
Coldest July Days
The coldest July days in District of Columbia were:
| Washington, District of Columbia | 1988 | 54°F |
| Washington, District of Columbia | 1940 | 55.4°F |
| Washington, District of Columbia | 1945 | 55.4°F |
| Washington, District of Columbia | 1943 | 55.9°F |
| Washington, District of Columbia | 1979 | 56.8°F |
Wettest July Days
The wettest single days in July occurred:
| Washington, District of Columbia | 1974 | 13.1 inches |
| Washington, District of Columbia | 1975 | 3.6 inches |
| Washington, District of Columbia | 2010 | 2.1 inches |
| Washington, District of Columbia | 1992 | 1.8 inches |
| Washington, District of Columbia | 1978 | 1.8 inches |