Vintage weather atlas
2010 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 |
|---|---|---|---|---|
| Jerez & SherrySpain | +0.6°C | +146 GDD | -26 mm | Repeated hot days can speed ripening and put vines under stress. |
| Margaret River & Great SouthernAustralia | +0.5°C | +122 GDD | -28 mm | No single weather pattern stands out in the regional record. |
| Bierzo & ValdeorrasSpain | +0.5°C | +91 GDD | -27 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. |
| Rías BaixasSpain | +0.5°C | +91 GDD | -93 mm | Less rain often lowers disease pressure, but vines may depend more on stored soil water or irrigation. |
| DouroPortugal | +0.4°C | +83 GDD | +21 mm | Frost exposure can vary sharply from one site to the next. |
| StellenboschSouth Africa | +0.3°C | +72 GDD | -58 mm | No single weather pattern stands out in the regional record. |
| MarlboroughNew Zealand | +0.3°C | +67 GDD | -3 mm | No single weather pattern stands out in the regional record. |
| Hunter ValleyAustralia | +0.1°C | +33 GDD | -75 mm | Less rain often lowers disease pressure, but vines may depend more on stored soil water or irrigation. |
| AbruzzoItaly | +0.0°C | -24 GDD | +3 mm | A freeze after budbreak can damage new growth and reduce the crop. |
| Central SicilyItaly | -0.2°C | -53 GDD | +129 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. |
| EtnaItaly | -0.2°C | -50 GDD | +37 mm | Rain close to harvest can raise rot pressure and shorten the picking window. |
| Trentino–Alto AdigeItaly | -0.2°C | -15 GDD | +104 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. A freeze after budbreak can damage new growth and reduce the crop. |
| MendozaArgentina | -0.2°C | -77 GDD | -123 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. |
| Yarra Valley & Mornington PeninsulaAustralia | -0.3°C | -67 GDD | +326 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. |
| Loire ValleyFrance | -0.3°C | -61 GDD | -88 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. |
| Rhône ValleyFrance | -0.3°C | -86 GDD | -44 mm | A freeze after budbreak can damage new growth and reduce the crop. |
| Southern ApenninesItaly | -0.3°C | -92 GDD | +121 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. |
| TasmaniaAustralia | -0.3°C | -82 GDD | +217 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. A freeze after budbreak can damage new growth and reduce the crop. |
| BordeauxFrance | -0.3°C | -77 GDD | -86 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. |
| Languedoc, Roussillon & ProvenceFrance | -0.4°C | -85 GDD | +37 mm | A freeze after budbreak can damage new growth and reduce the crop. |
| PugliaItaly | -0.4°C | -87 GDD | +149 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. |
| CorsicaFrance | -0.4°C | -90 GDD | +51 mm | A freeze after budbreak can damage new growth and reduce the crop. |
| BurgundyFrance | -0.4°C | -80 GDD | -22 mm | A freeze after budbreak can damage new growth and reduce the crop. |
| Castilla y LeónSpain | -0.4°C | -80 GDD | +8 mm | A freeze after budbreak can damage new growth and reduce the crop. |
| MoselGermany | -0.5°C | -80 GDD | +45 mm | A freeze after budbreak can damage new growth and reduce the crop. |
| RiojaSpain | -0.5°C | -92 GDD | -36 mm | A freeze after budbreak can damage new growth and reduce the crop. |
| Umbria & MarcheItaly | -0.5°C | -125 GDD | +64 mm | Frost exposure can vary sharply from one site to the next. |
| McLaren ValeAustralia | -0.5°C | -119 GDD | +102 mm | Frequent rain can mean more canopy growth and more disease pressure. |
| Po Valley & Northeast ItalyItaly | -0.5°C | -122 GDD | +199 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. A freeze after budbreak can damage new growth and reduce the crop. |
| CoonawarraAustralia | -0.5°C | -124 GDD | +252 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. |
| TuscanyItaly | -0.5°C | -113 GDD | +127 mm | Frequent rain can mean more canopy growth and more disease pressure. Frost exposure can vary sharply from one site to the next. |
| ChampagneFrance | -0.5°C | -85 GDD | -1 mm | A freeze after budbreak can damage new growth and reduce the crop. |
| WachauAustria | -0.5°C | -121 GDD | +37 mm | A freeze after budbreak can damage new growth and reduce the crop. |
| Adelaide HillsAustralia | -0.6°C | -147 GDD | +145 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. |
| Southeast SpainSpain | -0.6°C | -141 GDD | +9 mm | Frost exposure can vary sharply from one site to the next. |
| Barossa, Eden & Clare ValleysAustralia | -0.6°C | -148 GDD | +218 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. |
| SardiniaItaly | -0.7°C | -160 GDD | +10 mm | A freeze after budbreak can damage new growth and reduce the crop. |
| PiedmontItaly | -0.7°C | -132 GDD | +128 mm | Frequent rain can mean more canopy growth and more disease pressure. A freeze after budbreak can damage new growth and reduce the crop. |
| Walla Walla ValleyUnited States | -0.7°C | -153 GDD | +80 mm | A freeze after budbreak can damage new growth and reduce the crop. |
| Heathcote & RutherglenAustralia | -0.7°C | -180 GDD | +487 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. Frost exposure can vary sharply from one site to the next. |
| Alsace & JuraFrance | -0.8°C | -137 GDD | -5 mm | A freeze after budbreak can damage new growth and reduce the crop. |
| Maipo ValleyChile | -0.8°C | -186 GDD | +18 mm | Frost exposure can vary sharply from one site to the next. |
| Willamette ValleyUnited States | -0.8°C | -178 GDD | +194 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. Frost exposure can vary sharply from one site to the next. |
| CataloniaSpain | -0.8°C | -180 GDD | +25 mm | A freeze after budbreak can damage new growth and reduce the crop. |
| Yakima & Central Columbia BasinUnited States | -0.8°C | -189 GDD | +63 mm | A freeze after budbreak can damage new growth and reduce the crop. |
| LodiUnited States | -1.0°C | -224 GDD | +43 mm | No single weather pattern stands out in the regional record. |
| Napa ValleyUnited States | -1.0°C | -244 GDD | +82 mm | Cool weather can slow ripening and help grapes retain acidity. Frost exposure can vary sharply from one site to the next. |
| Paso Robles & Santa Barbara CountyUnited States | -1.0°C | -237 GDD | +11 mm | Cool weather can slow ripening and help grapes retain acidity. |
| Columbia GorgeUnited States | -1.0°C | -195 GDD | +134 mm | Cool weather can slow ripening and help grapes retain acidity. Frequent rain can mean more canopy growth and more disease pressure. A freeze after budbreak can damage new growth and reduce the crop. |
| Southern OregonUnited States | -1.0°C | -177 GDD | +155 mm | Cool weather can slow ripening and help grapes retain acidity. Frequent rain can mean more canopy growth and more disease pressure. A freeze after budbreak can damage new growth and reduce the crop. |
| Santa Cruz MountainsUnited States | -1.1°C | -220 GDD | +88 mm | Cool weather can slow ripening and help grapes retain acidity. |
| Sonoma & MendocinoUnited States | -2.0°C | -400 GDD | +297 mm | Cool weather can slow ripening and help grapes retain acidity. Frequent rain can mean more canopy growth and more disease pressure. Rain close to harvest can raise rot pressure and shorten the picking window. |
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.