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Average monthly air temperatures (°C) and total monthly precipitation (mm) during the growing season.
| Month | Temperature, °C | Precipitation, mm |
|---|---|---|
| April | 9.5 | 52.4 |
| May | 11.9 | 44.8 |
| June | 20.6 | 47.2 |
| July | 21.8 | 79.4 |
| August | 23.7 | 23.0 |
| September | 11.7 | 121.0 |
| October | 7.9 | 43.0 |
| Mean IV–X | 15.3 | 58.7 |
