Weather history and climate summary information is available for the following locations:
Warmest August Days
The warmest August days in Arizona are:
| Mesa, Arizona | 2010 | 120.2°F |
| Phoenix, Arizona | 1993 | 117°F |
| Phoenix, Arizona | 2011 | 117°F |
| Mesa, Arizona | 2012 | 116.6°F |
| Mesa, Arizona | 2011 | 116.6°F |
Coldest August Days
The coldest August days in Arizona were:
| Winslow, Arizona | 1978 | 45°F |
| Winslow, Arizona | 1980 | 46°F |
| Winslow, Arizona | 1976 | 46.9°F |
| Winslow, Arizona | 2002 | 46.9°F |
| Winslow, Arizona | 1974 | 48°F |
Wettest August Days
The wettest single days in August occurred:
| Tucson, Arizona | 1980 | 9 inches |
| Phoenix, Arizona | 1990 | 2.6 inches |
| Tucson, Arizona | 2007 | 2.5 inches |
| Tucson, Arizona | 2005 | 2.3 inches |
| Tucson, Arizona | 1995 | 2.2 inches |