Weather history and climate summary information is available for the following locations:
- Des Moines
- Sioux City
Warmest June Days
The warmest June days in Iowa are:
| Sioux City, Iowa | 1988 | 108°F |
| Des Moines, Iowa | 1988 | 102.9°F |
| Sioux City, Iowa | 1985 | 102°F |
| Des Moines, Iowa | 1977 | 101.8°F |
| Des Moines, Iowa | 1985 | 100.9°F |
Coldest June Days
The coldest June days in Iowa were:
| Sioux City, Iowa | 1983 | 39°F |
| Sioux City, Iowa | 1990 | 39.9°F |
| Sioux City, Iowa | 1978 | 39.9°F |
| Sioux City, Iowa | 1982 | 39.9°F |
| Sioux City, Iowa | 1945 | 40.3°F |
Wettest June Days
The wettest single days in June occurred:
| Des Moines, Iowa | 2011 | 4.5 inches |
| Des Moines, Iowa | 1974 | 3.7 inches |
| Des Moines, Iowa | 1990 | 3.6 inches |
| Des Moines, Iowa | 2008 | 3.6 inches |
| Sioux City, Iowa | 1996 | 3.2 inches |