Weather history and climate summary information is available for the following locations:
- Casper
- Cheyenne
- Sheridan
Warmest June Days
The warmest June days in Wyoming are:
| Sheridan, Wyoming | 1988 | 105.1°F |
| Sheridan, Wyoming | 2002 | 104°F |
| Sheridan, Wyoming | 2012 | 102°F |
| Casper, Wyoming | 1988 | 102°F |
| Casper, Wyoming | 1954 | 101.3°F |
Coldest June Days
The coldest June days in Wyoming were:
| Cheyenne, Wyoming | 1951 | 26.1°F |
| Casper, Wyoming | 1951 | 28.4°F |
| Sheridan, Wyoming | 2009 | 28.9°F |
| Cheyenne, Wyoming | 1954 | 28.9°F |
| Cheyenne, Wyoming | 2001 | 30°F |
Wettest June Days
The wettest single days in June occurred:
| Sheridan, Wyoming | 2010 | 2.4 inches |
| Sheridan, Wyoming | 1992 | 2.4 inches |
| Casper, Wyoming | 1982 | 2.2 inches |
| Casper, Wyoming | 1986 | 2.2 inches |
| Casper, Wyoming | 2003 | 2.1 inches |