Vintage weather atlas
2013 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 |
|---|---|---|---|---|
| Yakima & Central Columbia BasinUnited States | +0.7°C | +169 GDD | +7 mm | A freeze after budbreak can damage new growth and reduce the crop. |
| Yarra Valley & Mornington PeninsulaAustralia | +0.6°C | +133 GDD | +12 mm | No single weather pattern stands out in the regional record. |
| Barossa, Eden & Clare ValleysAustralia | +0.6°C | +122 GDD | +45 mm | Rain close to harvest can raise rot pressure and shorten the picking window. |
| Margaret River & Great SouthernAustralia | +0.5°C | +125 GDD | -36 mm | No single weather pattern stands out in the regional record. |
| Santa Cruz MountainsUnited States | +0.5°C | +103 GDD | -82 mm | Less rain often lowers disease pressure, but vines may depend more on stored soil water or irrigation. |
| Heathcote & RutherglenAustralia | +0.5°C | +97 GDD | -16 mm | Frost exposure can vary sharply from one site to the next. |
| Adelaide HillsAustralia | +0.4°C | +96 GDD | +9 mm | Rain close to harvest can raise rot pressure and shorten the picking window. |
| Hunter ValleyAustralia | +0.4°C | +96 GDD | -18 mm | No single weather pattern stands out in the regional record. |
| Rías BaixasSpain | +0.4°C | +86 GDD | -35 mm | No single weather pattern stands out in the regional record. |
| McLaren ValeAustralia | +0.4°C | +90 GDD | -22 mm | No single weather pattern stands out in the regional record. |
| Southern ApenninesItaly | +0.4°C | +84 GDD | +23 mm | No single weather pattern stands out in the regional record. |
| Columbia GorgeUnited States | +0.4°C | +71 GDD | +30 mm | A freeze after budbreak can damage new growth and reduce the crop. |
| Central SicilyItaly | +0.4°C | +77 GDD | -69 mm | Less rain often lowers disease pressure, but vines may depend more on stored soil water or irrigation. |
| PugliaItaly | +0.3°C | +82 GDD | -101 mm | Less rain often lowers disease pressure, but vines may depend more on stored soil water or irrigation. |
| Trentino–Alto AdigeItaly | +0.3°C | +30 GDD | +102 mm | Frequent rain can mean more canopy growth and more disease pressure. A freeze after budbreak can damage new growth and reduce the crop. |
| TuscanyItaly | +0.3°C | +62 GDD | -16 mm | Frost exposure can vary sharply from one site to the next. |
| LodiUnited States | +0.3°C | +70 GDD | -65 mm | Less rain often lowers disease pressure, but vines may depend more on stored soil water or irrigation. |
| MarlboroughNew Zealand | +0.3°C | +53 GDD | +173 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. |
| CoonawarraAustralia | +0.3°C | +51 GDD | +33 mm | No single weather pattern stands out in the regional record. |
| Napa ValleyUnited States | +0.3°C | +55 GDD | -125 mm | Less rain often lowers disease pressure, but vines may depend more on stored soil water or irrigation. |
| Paso Robles & Santa Barbara CountyUnited States | +0.3°C | +58 GDD | -88 mm | Less rain often lowers disease pressure, but vines may depend more on stored soil water or irrigation. |
| Bierzo & ValdeorrasSpain | +0.2°C | +77 GDD | -74 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. |
| Southern OregonUnited States | +0.2°C | +31 GDD | -32 mm | A freeze after budbreak can damage new growth and reduce the crop. |
| Jerez & SherrySpain | +0.2°C | +45 GDD | +16 mm | No single weather pattern stands out in the regional record. |
| TasmaniaAustralia | +0.2°C | +28 GDD | +110 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 | +0.2°C | +66 GDD | -14 mm | A freeze after budbreak can damage new growth and reduce the crop. |
| Willamette ValleyUnited States | +0.2°C | +44 GDD | +22 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. |
| AbruzzoItaly | +0.2°C | +17 GDD | -14 mm | A freeze after budbreak can damage new growth and reduce the crop. |
| StellenboschSouth Africa | +0.1°C | +24 GDD | +135 mm | Frequent rain can mean more canopy growth and more disease pressure. |
| EtnaItaly | +0.1°C | +3 GDD | -76 mm | Less rain often lowers disease pressure, but vines may depend more on stored soil water or irrigation. |
| CorsicaFrance | +0.1°C | +14 GDD | +74 mm | A freeze after budbreak can damage new growth and reduce the crop. |
| WachauAustria | +0.1°C | +2 GDD | -12 mm | A freeze after budbreak can damage new growth and reduce the crop. |
| CataloniaSpain | +0.0°C | +10 GDD | -60 mm | No single weather pattern stands out in the regional record. |
| Southeast SpainSpain | -0.1°C | -21 GDD | -51 mm | No single weather pattern stands out in the regional record. |
| SardiniaItaly | -0.1°C | -32 GDD | +52 mm | A freeze after budbreak can damage new growth and reduce the crop. |
| Alsace & JuraFrance | -0.1°C | -25 GDD | +126 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. |
| Loire ValleyFrance | -0.1°C | -8 GDD | +45 mm | A freeze after budbreak can damage new growth and reduce the crop. |
| MendozaArgentina | -0.1°C | +31 GDD | -99 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. |
| DouroPortugal | -0.1°C | -5 GDD | +58 mm | Frost exposure can vary sharply from one site to the next. |
| ChampagneFrance | -0.2°C | -24 GDD | +43 mm | A freeze after budbreak can damage new growth and reduce the crop. |
| PiedmontItaly | -0.2°C | -45 GDD | +144 mm | Frequent rain can mean more canopy growth and more disease pressure. A freeze after budbreak can damage new growth and reduce the crop. |
| Po Valley & Northeast ItalyItaly | -0.2°C | -12 GDD | +108 mm | Frequent rain can mean more canopy growth and more disease pressure. Frost exposure can vary sharply from one site to the next. |
| Languedoc, Roussillon & ProvenceFrance | -0.3°C | -51 GDD | +66 mm | Frost exposure can vary sharply from one site to the next. |
| Umbria & MarcheItaly | -0.3°C | -73 GDD | +56 mm | Frost exposure can vary sharply from one site to the next. |
| MoselGermany | -0.4°C | -61 GDD | +174 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 | -0.4°C | -76 GDD | +54 mm | A freeze after budbreak can damage new growth and reduce the crop. |
| Maipo ValleyChile | -0.4°C | -75 GDD | -98 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. |
| BurgundyFrance | -0.5°C | -83 GDD | +135 mm | Frequent rain can mean more canopy growth and more disease pressure. A freeze after budbreak can damage new growth and reduce the crop. |
| Rhône ValleyFrance | -0.5°C | -97 GDD | +111 mm | Frequent rain can mean more canopy growth and more disease pressure. A freeze after budbreak can damage new growth and reduce the crop. |
| RiojaSpain | -0.6°C | -118 GDD | +37 mm | Frost exposure can vary sharply from one site to the next. |
| Castilla y LeónSpain | -0.8°C | -127 GDD | +36 mm | Frost exposure can vary sharply from one site to the next. |
| Sonoma & MendocinoUnited States | -0.8°C | -177 GDD | -33 mm | No single weather pattern stands out in the regional record. |
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.