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Description of climatic variables obtained for all sampled populations
| Climatic variable | Units | |
|---|---|---|
| DD5 | Degree‐days above 5°C | °C |
| TD | Temperature difference between mean warmest month temperature and coldest month temperature, or continentality | °C |
| bFFP | Beginning of frost‐free period | Julian date |
| eFFP | End of frost‐free period | Julian date |
| MSP | Mean summer precipitation | mm |
| PAS | Precipitation as snow | mm |
| CMD | Hargreaves climatic moisture deficit | mm |
| Elev | Elevation | m |
