Regions › South America › Argentina
Argentina. Growing season October–April, harvest usually March–April. 26 vintages of weather, 2000–2025.
Over the 30 growing seasons from 1991 to 2020, Mendoza (Luján de Cuyo)'s vines saw on average 2,090 growing degree days between October and April. That puts it in Winkler region IV, close in heat and rain to Stellenbosch, Napa Valley and Priorat. In a typical year about 162 mm of rain falls in the growing season, 43 mm of it in March–April.
Since 2000 the warmest season was 2023 (+14% against normal) and the coolest 2016 (-15%). The wettest harvest window was 2000, with 66 mm against a normal 43 mm.
The last 10 vintages (2016–2025) averaged +6% against the 1991–2020 normal, compared with -0% for 2000–2009; 8 of those 10 seasons were warmer than normal by more than 3%.
Growing degree days (base 10°C) for each season. The dashed line is the 1991–2020 normal (2,090 GDD) and the shaded band one standard deviation either side: about two years in three fall inside it.
Full bar: rain over the whole growing season. Dark part: rain in the harvest window (March–April). The line is the normal season total, 162 mm.
Oct 2024–Apr 2025
Much warmer
Hot months: Oct +2.7° Nov +2.2° Jan +2.5° Feb +4.6°
Bars: mean daily high each month (red = 2°C or more above normal, blue = that much below). Line: the 1991–2020 normal.
Rank 3 of 26 for heat · Winkler V
Oct 2023–Apr 2024
Much warmer
Hot months: Jan +2.1° Feb +2.2° Mar +3.5°
Bars: mean daily high each month (red = 2°C or more above normal, blue = that much below). Line: the 1991–2020 normal.
Rank 4 of 26 for heat · Winkler V
Oct 2022–Apr 2023
Much warmer
Hot months: Nov +2.4° Dec +2.4° Feb +2.3° Mar +3.2° Apr +2.7°
Bars: mean daily high each month (red = 2°C or more above normal, blue = that much below). Line: the 1991–2020 normal.
Rank 1 of 26 for heat · Winkler V
Oct 2021–Apr 2022
Warmer
No month ran 2°C above its normal high
Bars: mean daily high each month (red = 2°C or more above normal, blue = that much below). Line: the 1991–2020 normal.
Rank 13 of 26 for heat · Winkler IV
Oct 2020–Apr 2021
Warmer
Hot months: Apr +2.2°
Bars: mean daily high each month (red = 2°C or more above normal, blue = that much below). Line: the 1991–2020 normal.
Rank 14 of 26 for heat · Winkler IV
Oct 2019–Apr 2020
Much warmer
Hot months: Nov +2.4° Jan +2.1° Mar +3.3°
Bars: mean daily high each month (red = 2°C or more above normal, blue = that much below). Line: the 1991–2020 normal.
Rank 2 of 26 for heat · Winkler V
Oct 2018–Apr 2019
Near normal
Hot months: Apr +2.2°
Bars: mean daily high each month (red = 2°C or more above normal, blue = that much below). Line: the 1991–2020 normal.
Rank 20 of 26 for heat · Winkler IV
Oct 2017–Apr 2018
Much warmer
Hot months: Mar +2.3° Apr +2.5°
Bars: mean daily high each month (red = 2°C or more above normal, blue = that much below). Line: the 1991–2020 normal.
Rank 7 of 26 for heat · Winkler V
Oct 2016–Apr 2017
Warmer
Hot months: Jan +3.2° Feb +2.0°
Bars: mean daily high each month (red = 2°C or more above normal, blue = that much below). Line: the 1991–2020 normal.
Rank 10 of 26 for heat · Winkler V
Oct 2015–Apr 2016
Much cooler
No month ran 2°C above its normal high
Bars: mean daily high each month (red = 2°C or more above normal, blue = that much below). Line: the 1991–2020 normal.
Rank 26 of 26 for heat · Winkler III
Oct 2014–Apr 2015
Warmer
Hot months: Oct +2.8°
Bars: mean daily high each month (red = 2°C or more above normal, blue = that much below). Line: the 1991–2020 normal.
Rank 11 of 26 for heat · Winkler IV
Oct 2013–Apr 2014
Near normal
Hot months: Dec +2.5° Jan +3.2°
Bars: mean daily high each month (red = 2°C or more above normal, blue = that much below). Line: the 1991–2020 normal.
Rank 16 of 26 for heat · Winkler IV
Oct 2012–Apr 2013
Near normal
No month ran 2°C above its normal high
Bars: mean daily high each month (red = 2°C or more above normal, blue = that much below). Line: the 1991–2020 normal.
Rank 15 of 26 for heat · Winkler IV
Oct 2011–Apr 2012
Much warmer
No month ran 2°C above its normal high
Bars: mean daily high each month (red = 2°C or more above normal, blue = that much below). Line: the 1991–2020 normal.
Rank 6 of 26 for heat · Winkler V
Oct 2010–Apr 2011
Near normal
No month ran 2°C above its normal high
Bars: mean daily high each month (red = 2°C or more above normal, blue = that much below). Line: the 1991–2020 normal.
Rank 22 of 26 for heat · Winkler IV
Oct 2009–Apr 2010
Warmer
Hot months: Jan +2.3° Mar +2.4°
Bars: mean daily high each month (red = 2°C or more above normal, blue = that much below). Line: the 1991–2020 normal.
Rank 9 of 26 for heat · Winkler V
Oct 2008–Apr 2009
Much warmer
Hot months: Nov +2.3° Mar +2.3° Apr +4.2°
Bars: mean daily high each month (red = 2°C or more above normal, blue = that much below). Line: the 1991–2020 normal.
Rank 5 of 26 for heat · Winkler V
Oct 2007–Apr 2008
Near normal
No month ran 2°C above its normal high
Bars: mean daily high each month (red = 2°C or more above normal, blue = that much below). Line: the 1991–2020 normal.
Rank 17 of 26 for heat · Winkler IV
Oct 2006–Apr 2007
Near normal
No month ran 2°C above its normal high
Bars: mean daily high each month (red = 2°C or more above normal, blue = that much below). Line: the 1991–2020 normal.
Rank 18 of 26 for heat · Winkler IV
Oct 2005–Apr 2006
Warmer
No month ran 2°C above its normal high
Bars: mean daily high each month (red = 2°C or more above normal, blue = that much below). Line: the 1991–2020 normal.
Rank 12 of 26 for heat · Winkler IV
Oct 2004–Apr 2005
Much cooler
No month ran 2°C above its normal high
Bars: mean daily high each month (red = 2°C or more above normal, blue = that much below). Line: the 1991–2020 normal.
Rank 24 of 26 for heat · Winkler III
Oct 2003–Apr 2004
Much warmer
Hot months: Oct +3.0° Nov +2.0°
Bars: mean daily high each month (red = 2°C or more above normal, blue = that much below). Line: the 1991–2020 normal.
Rank 8 of 26 for heat · Winkler V
Oct 2002–Apr 2003
Near normal
No month ran 2°C above its normal high
Bars: mean daily high each month (red = 2°C or more above normal, blue = that much below). Line: the 1991–2020 normal.
Rank 19 of 26 for heat · Winkler IV
Oct 2001–Apr 2002
Cooler
No month ran 2°C above its normal high
Bars: mean daily high each month (red = 2°C or more above normal, blue = that much below). Line: the 1991–2020 normal.
Rank 23 of 26 for heat · Winkler IV
Oct 2000–Apr 2001
Near normal
Hot months: Feb +2.6°
Bars: mean daily high each month (red = 2°C or more above normal, blue = that much below). Line: the 1991–2020 normal.
Rank 21 of 26 for heat · Winkler IV
Oct 1999–Apr 2000
Much cooler
No month ran 2°C above its normal high
Bars: mean daily high each month (red = 2°C or more above normal, blue = that much below). Line: the 1991–2020 normal.
Rank 25 of 26 for heat · Winkler III
| Vintage | GDD | vs normal | Season rain | Harvest rain | Hottest month (mean high) |
|---|---|---|---|---|---|
| 2025 | 2,350 | +13% | 124 mm | 49 mm | February 34.2°C |
| 2024 | 2,330 | +11% | 162 mm | 22 mm | January 33.5°C |
| 2023 | 2,380 | +14% | 92 mm | 19 mm | December 32.9°C |
| 2022 | 2,150 | +3% | 100 mm | 6 mm | January 32.4°C |
| 2021 | 2,150 | +3% | 127 mm | 40 mm | December 32.1°C |
| 2020 | 2,370 | +13% | 112 mm | 26 mm | January 33.5°C |
| 2019 | 2,100 | +1% | 142 mm | 23 mm | January 31.3°C |
| 2018 | 2,260 | +8% | 97 mm | 9 mm | January 31.8°C |
| 2017 | 2,230 | +7% | 160 mm | 57 mm | January 34.6°C |
| 2016 | 1,780 | -15% | 309 mm | 63 mm | February 30.7°C |
| 2015 | 2,200 | +5% | 178 mm | 51 mm | January 31.7°C |
| 2014 | 2,130 | +2% | 150 mm | 48 mm | January 34.6°C |
| 2013 | 2,140 | +3% | 128 mm | 34 mm | December 32.2°C |
| 2012 | 2,270 | +9% | 117 mm | 24 mm | January 33.0°C |
| 2011 | 2,040 | -2% | 133 mm | 17 mm | January 31.3°C |
| 2010 | 2,230 | +7% | 100 mm | 17 mm | January 33.7°C |
| 2009 | 2,330 | +11% | 94 mm | 24 mm | January 31.6°C |
| 2008 | 2,130 | +2% | 132 mm | 31 mm | December 31.2°C |
| 2007 | 2,120 | +1% | 155 mm | 66 mm | January 30.9°C |
| 2006 | 2,170 | +4% | 104 mm | 33 mm | January 32.9°C |
| 2005 | 1,900 | -9% | 163 mm | 44 mm | January 31.1°C |
| 2004 | 2,260 | +8% | 121 mm | 54 mm | January 32.3°C |
| 2003 | 2,120 | +1% | 130 mm | 30 mm | January 31.8°C |
| 2002 | 1,940 | -7% | 201 mm | 43 mm | December 31.2°C |
| 2001 | 2,050 | -2% | 176 mm | 62 mm | February 32.2°C |
| 2000 | 1,820 | -13% | 259 mm | 66 mm | January 29.5°C |
| 1991–2020 | 2,090 | ±7% (1 SD) | 162 mm | 43 mm |
The closest matches on this site by normal heat and season rain. Similar weather is one ingredient; soils, slopes and grapes differ.
