| 代号Code | 因子Factor | 代号Code | 因子Factor |
| X1 | 8~12月积温 Accumulated temperature for August to December | X5 | 11月21日~12月10日平均最低气温 The average minimum temperature for November 21th to December 10th. |
| X2 | 11月20日~12月20日结冰日数 Total ice days for November 20th to December 20th | X6 | 8~12月 ≥ 5 mm的降水日数 August to December during precipitation days of >5 mm |
| X3 | 8~12月合计降水量 Total precipitation for August to December | X7 | 8~12月平均日照百分率 The sunshine percentage for August to December |
| X4 | 8~12月合计日照时数 Total sunshine hours for August to December |
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