Vintage weather atlas
2014 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 |
|---|---|---|---|---|
| Southern OregonUnited States | +1.4°C | +261 GDD | +25 mm | Warm weather can speed ripening and leave grapes with less acidity. Repeated hot days can speed ripening and put vines under stress. Rain close to harvest can raise rot pressure and shorten the picking window. |
| Yakima & Central Columbia BasinUnited States | +1.2°C | +219 GDD | -23 mm | Warm weather can speed ripening and leave grapes with less acidity. Repeated hot days can speed ripening and put vines under stress. A freeze after budbreak can damage new growth and reduce the crop. |
| Paso Robles & Santa Barbara CountyUnited States | +1.2°C | +265 GDD | -66 mm | Warm weather can speed ripening and leave grapes with less acidity. Less rain often lowers disease pressure, but vines may depend more on stored soil water or irrigation. |
| Columbia GorgeUnited States | +1.1°C | +172 GDD | +90 mm | Warm weather can speed ripening and leave grapes with less acidity. 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. |
| Willamette ValleyUnited States | +1.1°C | +229 GDD | +84 mm | Warm weather can speed ripening and leave grapes with less acidity. Rain close to harvest can raise rot pressure and shorten the picking window. Frost exposure can vary sharply from one site to the next. |
| Santa Cruz MountainsUnited States | +1.1°C | +240 GDD | -51 mm | Warm weather can speed ripening and leave grapes with less acidity. |
| Southeast SpainSpain | +1.0°C | +231 GDD | -65 mm | Warm weather can speed ripening and leave grapes with less acidity. Less rain often lowers disease pressure, but vines may depend more on stored soil water or irrigation. |
| Walla Walla ValleyUnited States | +1.0°C | +165 GDD | -36 mm | Warm weather can speed ripening and leave grapes with less acidity. A freeze after budbreak can damage new growth and reduce the crop. |
| LodiUnited States | +0.9°C | +210 GDD | -33 mm | No single weather pattern stands out in the regional record. |
| RiojaSpain | +0.9°C | +164 GDD | -72 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. |
| MendozaArgentina | +0.8°C | +151 GDD | +20 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. |
| Napa ValleyUnited States | +0.8°C | +192 GDD | -64 mm | Less rain often lowers disease pressure, but vines may depend more on stored soil water or irrigation. |
| CataloniaSpain | +0.7°C | +153 GDD | +18 mm | No single weather pattern stands out in the regional record. |
| Castilla y LeónSpain | +0.6°C | +90 GDD | -59 mm | Frost exposure can vary sharply from one site to the next. |
| MoselGermany | +0.5°C | +18 GDD | +98 mm | Frequent rain can mean more canopy growth and more disease pressure. Frost exposure can vary sharply from one site to the next. |
| Hunter ValleyAustralia | +0.5°C | +118 GDD | +196 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. |
| Maipo ValleyChile | +0.5°C | +113 GDD | -26 mm | Frost exposure can vary sharply from one site to the next. |
| Bierzo & ValdeorrasSpain | +0.5°C | +45 GDD | -11 mm | Frost exposure can vary sharply from one site to the next. |
| ChampagneFrance | +0.5°C | +42 GDD | +35 mm | A freeze after budbreak can damage new growth and reduce the crop. |
| Rías BaixasSpain | +0.5°C | +80 GDD | +63 mm | No single weather pattern stands out in the regional record. |
| Heathcote & RutherglenAustralia | +0.4°C | +90 GDD | -31 mm | Frost exposure can vary sharply from one site to the next. |
| Languedoc, Roussillon & ProvenceFrance | +0.4°C | +77 GDD | -17 mm | No single weather pattern stands out in the regional record. |
| Rhône ValleyFrance | +0.4°C | +81 GDD | -41 mm | No single weather pattern stands out in the regional record. |
| Margaret River & Great SouthernAustralia | +0.4°C | +88 GDD | +12 mm | No single weather pattern stands out in the regional record. |
| StellenboschSouth Africa | +0.4°C | +88 GDD | -128 mm | Less rain often lowers disease pressure, but vines may depend more on stored soil water or irrigation. |
| WachauAustria | +0.3°C | -28 GDD | +192 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. |
| Loire ValleyFrance | +0.3°C | +30 GDD | +33 mm | Frost exposure can vary sharply from one site to the next. |
| Alsace & JuraFrance | +0.3°C | +10 GDD | +38 mm | Frost exposure can vary sharply from one site to the next. |
| BordeauxFrance | +0.3°C | +48 GDD | -46 mm | No single weather pattern stands out in the regional record. |
| MarlboroughNew Zealand | +0.2°C | +44 GDD | -148 mm | Less rain often lowers disease pressure, but vines may depend more on stored soil water or irrigation. |
| Yarra Valley & Mornington PeninsulaAustralia | +0.2°C | +37 GDD | -73 mm | Less rain often lowers disease pressure, but vines may depend more on stored soil water or irrigation. |
| Adelaide HillsAustralia | +0.2°C | +39 GDD | -65 mm | Less rain often lowers disease pressure, but vines may depend more on stored soil water or irrigation. |
| Central SicilyItaly | +0.1°C | +19 GDD | -59 mm | No single weather pattern stands out in the regional record. |
| CorsicaFrance | +0.1°C | -35 GDD | +8 mm | Frost exposure can vary sharply from one site to the next. |
| SardiniaItaly | +0.1°C | +8 GDD | -80 mm | Less rain often lowers disease pressure, but vines may depend more on stored soil water or irrigation. |
| CoonawarraAustralia | +0.1°C | +16 GDD | -76 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. |
| McLaren ValeAustralia | +0.0°C | +8 GDD | -72 mm | Less rain often lowers disease pressure, but vines may depend more on stored soil water or irrigation. |
| Sonoma & MendocinoUnited States | +0.0°C | +10 GDD | -29 mm | No single weather pattern stands out in the regional record. |
| Barossa, Eden & Clare ValleysAustralia | +0.0°C | +2 GDD | -49 mm | No single weather pattern stands out in the regional record. |
| Jerez & SherrySpain | +0.0°C | -1 GDD | -36 mm | No single weather pattern stands out in the regional record. |
| Trentino–Alto AdigeItaly | +0.0°C | -41 GDD | -57 mm | A freeze after budbreak can damage new growth and reduce the crop. |
| EtnaItaly | -0.0°C | -10 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. |
| TasmaniaAustralia | -0.0°C | -48 GDD | -75 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. |
| Po Valley & Northeast ItalyItaly | -0.1°C | -38 GDD | +83 mm | No single weather pattern stands out in the regional record. |
| PiedmontItaly | -0.1°C | -35 GDD | +47 mm | No single weather pattern stands out in the regional record. |
| Southern ApenninesItaly | -0.1°C | -38 GDD | +21 mm | No single weather pattern stands out in the regional record. |
| DouroPortugal | -0.2°C | -44 GDD | +80 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. |
| BurgundyFrance | -0.2°C | -52 GDD | +52 mm | Frost exposure can vary sharply from one site to the next. |
| PugliaItaly | -0.2°C | -62 GDD | +165 mm | Frequent rain can mean more canopy growth and more disease pressure. |
| TuscanyItaly | -0.2°C | -62 GDD | +54 mm | No single weather pattern stands out in the regional record. |
| AbruzzoItaly | -0.5°C | -118 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. A freeze after budbreak can damage new growth and reduce the crop. |
| Umbria & MarcheItaly | -0.5°C | -140 GDD | +133 mm | Frequent rain can mean more canopy growth and more disease pressure. |
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.