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France. Growing season April–October, harvest usually September. 26 vintages of weather, 2000–2025.
Photo: Treephoto, CC BY-SA 4.0, via Wikimedia Commons
Over the 30 growing seasons from 1991 to 2020, Southern Rhône's vines saw on average 2,180 growing degree days between April and October. That puts it in Winkler region IV, close in heat and rain to Kakheti, Languedoc and Priorat. In a typical year about 441 mm of rain falls in the growing season, 91 mm of it in September.
Since 2000 the warmest season was 2022 (+21% against normal) and the coolest 2008 (-7%). The wettest harvest window was 2022, with 189 mm against a normal 91 mm.
The last 10 vintages (2016–2025) averaged +8% against the 1991–2020 normal, compared with +2% for 2000–2009; 7 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 (2,180 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 (September). The line is the normal season total, 441 mm.
Apr–Oct 2025
Warmer
Hot months: Jun +4.7° Aug +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 9 of 26 for heat · Winkler V
Apr–Oct 2024
Near normal
Hot months: Aug +2.9°
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
Apr–Oct 2023
Much warmer
Hot months: Jul +2.1° Sep +3.9° Oct +4.0°
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
Apr–Oct 2022
Much warmer
Hot months: May +4.4° Jun +4.1° Jul +4.0° Aug +2.2° Oct +3.6°
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
Apr–Oct 2021
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 21 of 26 for heat · Winkler IV
Apr–Oct 2020
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 V
Apr–Oct 2019
Much warmer
Hot months: Jun +2.5° Jul +2.5° Aug +2.1° Sep +2.3°
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
Apr–Oct 2018
Much warmer
Hot months: Jul +2.0° Sep +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 4 of 26 for heat · Winkler V
Apr–Oct 2017
Much warmer
Hot months: Jun +3.0° Oct +2.9°
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
Apr–Oct 2016
Near normal
Hot months: Sep +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
Apr–Oct 2015
Warmer
Hot months: Jul +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 10 of 26 for heat · Winkler V
Apr–Oct 2014
Warmer
Hot months: Oct +2.9°
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 V
Apr–Oct 2013
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
Apr–Oct 2012
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 V
Apr–Oct 2011
Warmer
Hot months: Apr +3.5° May +3.5° Sep +2.1°
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 V
Apr–Oct 2010
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 IV
Apr–Oct 2009
Warmer
Hot months: May +2.3°
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
Apr–Oct 2008
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 IV
Apr–Oct 2007
Near normal
Hot months: Apr +4.5°
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
Apr–Oct 2006
Much warmer
Hot months: Jul +3.5° Oct +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 5 of 26 for heat · Winkler V
Apr–Oct 2005
Near normal
Hot months: Jun +2.3°
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 V
Apr–Oct 2004
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
Apr–Oct 2003
Much warmer
Hot months: May +2.3° Jun +5.1° Aug +4.8°
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
Apr–Oct 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 25 of 26 for heat · Winkler IV
Apr–Oct 2001
Near normal
Hot months: Oct +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 20 of 26 for heat · Winkler IV
Apr–Oct 2000
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
| Vintage | GDD | vs normal | Season rain | Harvest rain | Hottest month (mean high) |
|---|---|---|---|---|---|
| 2025 | 2,300 | +5% | 477 mm | 161 mm | June 34.2°C |
| 2024 | 2,210 | +1% | 584 mm | 160 mm | August 34.3°C |
| 2023 | 2,530 | +16% | 375 mm | 34 mm | July 34.1°C |
| 2022 | 2,640 | +21% | 460 mm | 189 mm | July 36.0°C |
| 2021 | 2,140 | -2% | 555 mm | 74 mm | July 31.4°C |
| 2020 | 2,290 | +5% | 389 mm | 58 mm | July 33.6°C |
| 2019 | 2,380 | +10% | 434 mm | 74 mm | July 34.5°C |
| 2018 | 2,410 | +11% | 639 mm | 11 mm | July 34.0°C |
| 2017 | 2,360 | +8% | 200 mm | 15 mm | July 33.0°C |
| 2016 | 2,210 | +1% | 398 mm | 27 mm | July 32.2°C |
| 2015 | 2,300 | +5% | 439 mm | 72 mm | July 34.6°C |
| 2014 | 2,250 | +3% | 354 mm | 78 mm | June 31.1°C |
| 2013 | 2,100 | -4% | 595 mm | 73 mm | July 33.5°C |
| 2012 | 2,280 | +5% | 446 mm | 86 mm | August 33.1°C |
| 2011 | 2,290 | +5% | 324 mm | 74 mm | August 31.6°C |
| 2010 | 2,070 | -5% | 392 mm | 65 mm | July 33.6°C |
| 2009 | 2,330 | +7% | 391 mm | 75 mm | August 33.2°C |
| 2008 | 2,030 | -7% | 538 mm | 110 mm | July 31.1°C |
| 2007 | 2,190 | +1% | 301 mm | 26 mm | July 31.2°C |
| 2006 | 2,400 | +10% | 320 mm | 136 mm | July 35.5°C |
| 2005 | 2,240 | +3% | 371 mm | 100 mm | June 31.8°C |
| 2004 | 2,200 | +1% | 480 mm | 35 mm | July 31.8°C |
| 2003 | 2,460 | +13% | 390 mm | 91 mm | August 36.2°C |
| 2002 | 2,070 | -5% | 514 mm | 143 mm | July 30.7°C |
| 2001 | 2,180 | +0% | 453 mm | 127 mm | August 32.6°C |
| 2000 | 2,120 | -3% | 562 mm | 124 mm | August 31.9°C |
| 1991–2020 | 2,180 | ±7% (1 SD) | 441 mm | 91 mm |
The closest matches on this site by normal heat and season rain. Similar weather is one ingredient; soils, slopes and grapes differ.
