Weather history and climate summary information is available for the following locations:
- Boise
- Mountain Home
- Pocatello
Warmest August Days
The warmest August days in Idaho are:
| Mountain Home, Idaho | 1983 | 109°F |
| Boise, Idaho | 1990 | 109°F |
| Mountain Home, Idaho | 1969 | 108°F |
| Boise, Idaho | 1992 | 106°F |
| Mountain Home, Idaho | 1956 | 106°F |
Coldest August Days
The coldest August days in Idaho were:
| Pocatello, Idaho | 1992 | 30.9°F |
| Pocatello, Idaho | 2006 | 32°F |
| Mountain Home, Idaho | 1932 | 32.4°F |
| Pocatello, Idaho | 1993 | 33.1°F |
| Boise, Idaho | 1992 | 34°F |
Wettest August Days
The wettest single days in August occurred:
| Boise, Idaho | 1985 | 2.1 inches |
| Boise, Idaho | 1979 | 1.6 inches |
| Boise, Idaho | 2009 | 1.1 inches |
| Pocatello, Idaho | 1982 | 0.8 inches |
| Boise, Idaho | 1977 | 0.8 inches |