Weather history and climate summary information is available for the following locations:
- Casper
- Cheyenne
- Sheridan
Warmest July Days
The warmest July days in Wyoming are:
| Sheridan, Wyoming | 2002 | 107.1°F |
| Sheridan, Wyoming | 1988 | 106°F |
| Sheridan, Wyoming | 1989 | 106°F |
| Sheridan, Wyoming | 2005 | 105.1°F |
| Sheridan, Wyoming | 2006 | 105.1°F |
Coldest July Days
The coldest July days in Wyoming were:
| Casper, Wyoming | 1997 | 35.1°F |
| Casper, Wyoming | 2008 | 37°F |
| Sheridan, Wyoming | 1987 | 37°F |
| Cheyenne, Wyoming | 1952 | 37.9°F |
| Casper, Wyoming | 2010 | 37.9°F |
Wettest July Days
The wettest single days in July occurred:
| Casper, Wyoming | 2006 | 4.7 inches |
| Cheyenne, Wyoming | 1973 | 2.8 inches |
| Cheyenne, Wyoming | 2011 | 2.5 inches |
| Cheyenne, Wyoming | 2006 | 1.9 inches |
| Casper, Wyoming | 1983 | 1.9 inches |