Weather history and climate summary information is available for the following locations:
- Washington
Warmest October Days
The warmest October days in District of Columbia are:
| Washington, District of Columbia | 1941 | 96.1°F |
| Washington, District of Columbia | 2007 | 93.9°F |
| Washington, District of Columbia | 1954 | 93.4°F |
| Washington, District of Columbia | 1939 | 93.4°F |
| Washington, District of Columbia | 1951 | 93.4°F |
Coldest October Days
The coldest October days in District of Columbia were:
| Washington, District of Columbia | 1936 | 26.4°F |
| Washington, District of Columbia | 1976 | 29.8°F |
| Washington, District of Columbia | 1992 | 29.8°F |
| Washington, District of Columbia | 1974 | 30°F |
| Washington, District of Columbia | 1942 | 30.9°F |
Wettest October Days
The wettest single days in October occurred:
| Washington, District of Columbia | 2005 | 5.3 inches |
| Washington, District of Columbia | 2007 | 3.9 inches |
| Washington, District of Columbia | 2012 | 3.8 inches |
| Washington, District of Columbia | 2010 | 3.1 inches |
| Washington, District of Columbia | 1995 | 2.2 inches |