Grapes › Merlot
Merlot
A red wine grape with blue-black berries (Wikidata).
On this site Merlot is a main grape in 4 regions, from Hawke's Bay at 1,440 GDD (Winkler II) to Napa Valley at 1,930 (Winkler III), so the same grape meets very different seasons.
Its regions on the heat scale
Each region's 1991–2020 normal growing degree days, coolest at the top. Tap a row to open the region.
Recent vintages in its regions
| Region | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|---|---|---|
| Hawke's Bay | +11% | +5% | +12% | +4% | +10% | -0% | +5% | +8% |
| Bordeaux | +14% | +7% | +8% | -6% | +29% | +24% | -5% | +9% |
| Columbia Valley | +6% | +3% | +9% | +19% | +13% | +14% | +11% | +18% |
| Napa Valley | +3% | +9% | +20% | +5% | +11% | -0% | +16% | +3% |
Percent above or below each region's 1991–2020 normal heat.
