Vintage weather atlas
2007 across wine regions
Compare growing-season heat and rain with the 1991–2020 average. These regional weather records describe the season, not wine quality.
Last Updated August 20, 2026 · Data through July 14, 2026 · 52 of 52 regions
Regional departures
Growing-season values compared with 1991–2020. Rows are ordered warmest to coolest.
Scroll horizontally for all columns and vertically for more regions.
| Region | Temperature | GDD | Rain | Season summary |
|---|---|---|---|---|
| Barossa, Eden & Clare ValleysAustralia | +0.7°C | +170 GDD | -83 mm | Repeated hot days can speed ripening and put vines under stress. Less rain often lowers disease pressure, but vines may depend more on stored soil water or irrigation. |
| Heathcote & RutherglenAustralia | +0.6°C | +156 GDD | -98 mm | Less rain often lowers disease pressure, but vines may depend more on stored soil water or irrigation. Frost exposure can vary sharply from one site to the next. |
| Adelaide HillsAustralia | +0.6°C | +144 GDD | -70 mm | Repeated hot days can speed ripening and put vines under stress. Less rain often lowers disease pressure, but vines may depend more on stored soil water or irrigation. |
| Central SicilyItaly | +0.6°C | +138 GDD | -24 mm | Repeated hot days can speed ripening and put vines under stress. |
| Yarra Valley & Mornington PeninsulaAustralia | +0.5°C | +119 GDD | -116 mm | Less rain often lowers disease pressure, but vines may depend more on stored soil water or irrigation. |
| McLaren ValeAustralia | +0.5°C | +115 GDD | -62 mm | Less rain often lowers disease pressure, but vines may depend more on stored soil water or irrigation. |
| EtnaItaly | +0.4°C | +88 GDD | -9 mm | Repeated hot days can speed ripening and put vines under stress. |
| Umbria & MarcheItaly | +0.4°C | +93 GDD | -83 mm | Less rain often lowers disease pressure, but vines may depend more on stored soil water or irrigation. |
| MarlboroughNew Zealand | +0.4°C | +91 GDD | -60 mm | Frost exposure can vary sharply from one site to the next. |
| Trentino–Alto AdigeItaly | +0.3°C | +31 GDD | -83 mm | Less rain often lowers disease pressure, but vines may depend more on stored soil water or irrigation. A freeze after budbreak can damage new growth and reduce the crop. |
| CoonawarraAustralia | +0.3°C | +73 GDD | -33 mm | Repeated hot days can speed ripening and put vines under stress. |
| Po Valley & Northeast ItalyItaly | +0.2°C | +51 GDD | -86 mm | Less rain often lowers disease pressure, but vines may depend more on stored soil water or irrigation. |
| PiedmontItaly | +0.2°C | +40 GDD | -132 mm | Less rain often lowers disease pressure, but vines may depend more on stored soil water or irrigation. Frost exposure can vary sharply from one site to the next. |
| TasmaniaAustralia | +0.1°C | +35 GDD | -108 mm | Less rain often lowers disease pressure, but vines may depend more on stored soil water or irrigation. A freeze after budbreak can damage new growth and reduce the crop. |
| LodiUnited States | +0.1°C | +32 GDD | -50 mm | No single weather pattern stands out in the regional record. |
| Southern ApenninesItaly | +0.1°C | +34 GDD | +27 mm | No single weather pattern stands out in the regional record. |
| MendozaArgentina | +0.1°C | +13 GDD | -107 mm | Less rain often lowers disease pressure, but vines may depend more on stored soil water or irrigation. Frost exposure can vary sharply from one site to the next. |
| WachauAustria | +0.0°C | +14 GDD | +29 mm | Rain close to harvest can raise rot pressure and shorten the picking window. A freeze after budbreak can damage new growth and reduce the crop. |
| PugliaItaly | +0.0°C | -1 GDD | +95 mm | No single weather pattern stands out in the regional record. |
| StellenboschSouth Africa | +0.0°C | +8 GDD | -4 mm | No single weather pattern stands out in the regional record. |
| CataloniaSpain | -0.0°C | -1 GDD | -4 mm | No single weather pattern stands out in the regional record. |
| ChampagneFrance | -0.0°C | -28 GDD | +42 mm | Frost exposure can vary sharply from one site to the next. |
| Napa ValleyUnited States | -0.1°C | -22 GDD | -71 mm | Less rain often lowers disease pressure, but vines may depend more on stored soil water or irrigation. |
| CorsicaFrance | -0.1°C | -5 GDD | -40 mm | A freeze after budbreak can damage new growth and reduce the crop. |
| MoselGermany | -0.1°C | -45 GDD | +44 mm | Frost exposure can vary sharply from one site to the next. |
| Alsace & JuraFrance | -0.1°C | -37 GDD | +46 mm | Frost exposure can vary sharply from one site to the next. |
| Margaret River & Great SouthernAustralia | -0.1°C | -27 GDD | +27 mm | No single weather pattern stands out in the regional record. |
| BurgundyFrance | -0.1°C | -44 GDD | +77 mm | Frost exposure can vary sharply from one site to the next. |
| AbruzzoItaly | -0.2°C | -31 GDD | -96 mm | Less rain often lowers disease pressure, but vines may depend more on stored soil water or irrigation. A freeze after budbreak can damage new growth and reduce the crop. |
| TuscanyItaly | -0.2°C | -46 GDD | -123 mm | Less rain often lowers disease pressure, but vines may depend more on stored soil water or irrigation. |
| Rhône ValleyFrance | -0.2°C | -42 GDD | -190 mm | Less rain often lowers disease pressure, but vines may depend more on stored soil water or irrigation. |
| Languedoc, Roussillon & ProvenceFrance | -0.3°C | -45 GDD | -104 mm | Less rain often lowers disease pressure, but vines may depend more on stored soil water or irrigation. |
| Yakima & Central Columbia BasinUnited States | -0.3°C | -65 GDD | -25 mm | A freeze after budbreak can damage new growth and reduce the crop. |
| Maipo ValleyChile | -0.4°C | -81 GDD | -71 mm | Less rain often lowers disease pressure, but vines may depend more on stored soil water or irrigation. Frost exposure can vary sharply from one site to the next. |
| BordeauxFrance | -0.4°C | -83 GDD | -32 mm | No single weather pattern stands out in the regional record. |
| Paso Robles & Santa Barbara CountyUnited States | -0.4°C | -88 GDD | -65 mm | Less rain often lowers disease pressure, but vines may depend more on stored soil water or irrigation. |
| SardiniaItaly | -0.4°C | -61 GDD | +15 mm | A freeze after budbreak can damage new growth and reduce the crop. |
| Columbia GorgeUnited States | -0.4°C | -68 GDD | -55 mm | A freeze after budbreak can damage new growth and reduce the crop. |
| Loire ValleyFrance | -0.4°C | -96 GDD | +45 mm | Frost exposure can vary sharply from one site to the next. |
| RiojaSpain | -0.4°C | -100 GDD | -21 mm | Frost exposure can vary sharply from one site to the next. |
| Southern OregonUnited States | -0.5°C | -99 GDD | +2 mm | Rain close to harvest can raise rot pressure and shorten the picking window. Frost exposure can vary sharply from one site to the next. |
| Willamette ValleyUnited States | -0.5°C | -117 GDD | -74 mm | Less rain often lowers disease pressure, but vines may depend more on stored soil water or irrigation. Frost exposure can vary sharply from one site to the next. |
| Rías BaixasSpain | -0.5°C | -106 GDD | -123 mm | Less rain often lowers disease pressure, but vines may depend more on stored soil water or irrigation. |
| Santa Cruz MountainsUnited States | -0.6°C | -122 GDD | -21 mm | No single weather pattern stands out in the regional record. |
| Jerez & SherrySpain | -0.7°C | -157 GDD | +35 mm | No single weather pattern stands out in the regional record. |
| Southeast SpainSpain | -0.7°C | -154 GDD | +143 mm | Frequent rain can mean more canopy growth and more disease pressure. Rain close to harvest can raise rot pressure and shorten the picking window. |
| Bierzo & ValdeorrasSpain | -0.7°C | -188 GDD | -52 mm | A freeze after budbreak can damage new growth and reduce the crop. |
| Hunter ValleyAustralia | -0.8°C | -185 GDD | +158 mm | Frequent rain can mean more canopy growth and more disease pressure. Rain close to harvest can raise rot pressure and shorten the picking window. |
| Walla Walla ValleyUnited States | -0.8°C | -161 GDD | -62 mm | Less rain often lowers disease pressure, but vines may depend more on stored soil water or irrigation. A freeze after budbreak can damage new growth and reduce the crop. |
| Castilla y LeónSpain | -0.8°C | -185 GDD | +33 mm | A freeze after budbreak can damage new growth and reduce the crop. |
| DouroPortugal | -0.8°C | -161 GDD | -9 mm | Frost exposure can vary sharply from one site to the next. |
| Sonoma & MendocinoUnited States | -1.6°C | -329 GDD | +40 mm | Cool weather can slow ripening and help grapes retain acidity. |
Methods, limitations, and sources
How this comparison is made
Each row uses the region’s configured growing-season window and only appears when its annual summary passes the shared source, regional-rule, baseline, metric, and 95% window-completeness checks. GDD means growing degree days, a measure of accumulated warmth above each region’s published base temperature.
The map colors show mean-temperature departure from 1991–2020. GDD and rain departures use the same baseline. “Last Updated” is the oldest calculation time among the displayed rows; “Data through” is the oldest source date. This conservative rule prevents a partly refreshed atlas from appearing newer than all of its regions.
Limits
These are regional weather summaries, not vineyard measurements. Region outlines represent approximate wine-growing and weather-analysis areas, not official boundaries or individual vineyards. A regional pattern can hide meaningful differences in elevation, exposure, storms, soils, vineyard practice, and harvest timing. The weather record alone does not determine wine quality.
Source
Weather & Vines combined regional series. Combined records use eligible NOAA GHCN observations where available and ERA5 reanalysis for the regional grid and for locations or dates without eligible station coverage.