Years | Soil depth, cm | Months | ||||||
March | April | May | June | July | August | September | ||
1 | 0 - 10 | 16.3 | 19.9 | 17.5 | 10.2 | 13.9 | 12.8 | 14.6 |
10 - 20 | 16.7 | 18.7 | 16.5 | 12.4 | 14.7 | 11.7 | 15.2 | |
20 - 30 | 17.6 | 17.1 | 17.1 | 14.2 | 14.0 | 13.5 | 10.9 | |
average | 16.8 | 18.5 | 17.0 | 12.3 | 14.2 | 12.6 | 13.5 | |
2 | 0 - 10 | 16.9 | 8.5 | 7.5 | 8.9 | 7.0 | 7.7 | 10.0 |
10 - 20 | 15.8 | 13.2 | 11.4 | 9.1 | 10.2 | 8.9 | 10.4 | |
20 - 30 | 15.1 | 17.0 | 15.9 | 9.8 | 11.7 | 9.8 | 12.3 | |
average | 16.0 | 13.0 | 11.6 | 9.2 | 9.6 | 8.8 | 11.0 | |
3 | 0 - 10 | 12.2 | 15.3 | 12.7 | 10.2 | 9.2 | 10.5 | 12.5 |
10 - 20 | 15.3 | 15.7 | 15.5 | 11.9 | 9.8 | 11.7 | 13.0 | |
20 - 30 | 16.9 | 16.5 | 17.1 | 13.2 | 12.2 | 13.5 | 17.7 | |
average | 14.8 | 15.8 | 15.1 | 11.7 | 10.4 | 12.0 | 14.4 |