| Bison (2014) | Bison 30-Yr Average | Onida (2014) | Onida (2015) | Onida 30-Yr Average | ||
| Temperature | April | 5.3 | 7.3 | 6.6 | 9.4 | 7.7 |
| (C) | May | 12.8 | 13.4 | 13.7 | 12.4 | 13.9 |
| June | 15.6 | 18.4 | 17.6 | 19.9 | 19.4 | |
| July | 20.4 | 22.6 | 20.8 | 23.4 | 23.3 | |
| Aug | 21.1 | 22.1 | 20.8 | 21.7 | 22.2 | |
| Sept | 15.5 | 16.1 | 16.8 | 19.1 | 16.7 | |
| Oct | 10.5 | 8.7 | 9.8 | 11.2 | 8.3 | |
| Average | 14.5 | 15.5 | 15.2 | 16.7 | 16.0 | |
| Precipitation | April | 44.7 | 46.7 | 59.4 | 11.7 | 47.5 |
| (mm) | May | 38.4 | 78.5 | 63.5 | 138.9 | 77.7 |
| June | 205.0 | 73.9 | 136.4 | 84.1 | 84.8 | |
| July | 22.1 | 60.2 | 23.6 | 34.3 | 67.3 | |
| Aug | 82.8 | 41.1 | 67.1 | 70.9 | 59.9 | |
| Sept | 46.2 | 32.3 | 19.1 | 48.8 | 45.7 | |
| Oct | 7.6 | 37.3 | 15.0 | 34.3 | 42.4 | |
| Total | 446.8 | 370.1 | 384.0 | 422.9 | 425.5 |