Vanningsinformasjon fra NIBIO, Landbruksmeteorologisk tjeneste
Potensiell fordamping beregnes ikke utenfor vekstsesong. Vekstsesongen 2021 startet uke 16.
| Uke | Lufttemperatur (°C) | Nedbør (mm) | Potensiell fordamping (mm) | Vannbalanse (mm) |
| 1 | -6.5 | 0.2 | 0 | 0 |
| 2 | -8.9 | 0 | 0 | 0 |
| 3 | 0 | 53.4 | 0 | 0 |
| 4 | -11 | 0 | 0 | 0 |
| 5 | -9.3 | 0 | 0 | 0 |
| 6 | -10.1 | 0 | 0 | 0 |
| 7 | -1.8 | 17 | 0 | 0 |
| 8 | 2.2 | 3.6 | 0 | 0 |
| 9 | 1 | 0.4 | 0 | 0 |
| 10 | -0 | 18.2 | 0 | 0 |
| 11 | 1.9 | 0 | 0 | 0 |
| 12 | 4 | 8.4 | 0 | 0 |
| 13 | 5.6 | 1 | 0 | 0 |
| 14 | 2.9 | 2.6 | 0 | 0 |
| 15 | 5.2 | 12 | 0 | 0 |
| 16 | 6.1 | 2.8 | 0 | 0 |
| 17 | 5.6 | 0 | 15.3 | -15.3 |
| 18 | 5 | 6.8 | 13.8 | -7 |
| 19 | 10.6 | 32 | 9.6 | 22.4 |
| 20 | 9.7 | 24.2 | 12.1 | 12.1 |
| 21 | 13.2 | 9.2 | 21 | -11.8 |
| 22 | 17.6 | 0.2 | 26.2 | -26 |
| 23 | 15.8 | 2.8 | 21.9 | -19.1 |
| 24 | 15.9 | 24.6 | 19.5 | 5.1 |
| 25 | 15.1 | 5.8 | 17 | -11.2 |
| 26 | 18.5 | 3.8 | 23.1 | -19.3 |
| 27 | 17.5 | 29.6 | 19.1 | 10.5 |
| 28 | 20.5 | 3.4 | 25.1 | -21.7 |
| 29 | 19 | 0 | 26.2 | -26.2 |
| 30 | 18.8 | 37.8 | 6.9 | 30.9 |
| 53 | -2.3 | 0 | 0 | 0 |
| Total | 5.9 | 180.2 | 256.9 | -76.7 |
Veiledning