Weather history and climate summary information is available for the following locations:
- Bellingham
- Grant County Airport
- Seattle
- Spokane
- Tacoma
- Walla Walla
- Yakima
Warmest June Days
The warmest June days in Washington are:
| Grant County Airport, Washington | 1987 | 106°F |
| Walla Walla, Washington | 1992 | 106°F |
| Yakima, Washington | 1992 | 105.1°F |
| Walla Walla, Washington | 2008 | 105.1°F |
| Grant County Airport, Washington | 1992 | 105.1°F |
Coldest June Days
The coldest June days in Washington were:
| Spokane, Washington | 1976 | 20.1°F |
| Yakima, Washington | 1976 | 29.8°F |
| Yakima, Washington | 1984 | 30°F |
| Spokane, Washington | 1991 | 31.1°F |
| Yakima, Washington | 1987 | 32°F |
Wettest June Days
The wettest single days in June occurred:
| Tacoma, Washington | 1984 | 2.1 inches |
| Seattle, Washington | 1968 | 1.7 inches |
| Seattle, Washington | 1985 | 1.7 inches |
| Tacoma, Washington | 1997 | 1.6 inches |
| Yakima, Washington | 1982 | 1.5 inches |