| Month/Grand Fork | Av. max temp | Av. min temp | Av. soil temp | Total solar radiation | Total PET | Rainfall |
| Apr-07 | 11.2 | −0.5 | 5.0 | 451 | 116.8 | 15.5 |
| May-07 | 21.2 | 8.1 | 14.9 | 445 | 183.6 | 129.3 |
| Jun-07 | 25.7 | 14.3 | 22.0 | 521 | 182.1 | 115.3 |
| Jul-07 | 28.1 | 15.1 | 25.8 | 569 | 182.1 | 44.2 |
| Aug-07 | 24.8 | 11.9 | 21.2 | 407 | 131.6 | 70.4 |
| Sep-07 | 21.3 | 7.9 | 16.3 | 308 | 110.7 | 26.9 |