Isola 2000, France. Every ski winter from 1950/51 to 2025/26.
Every day of every winter
Each row is a winter, oldest at the top. Each column is a day, from the start of the season to the end. The darker the blue, the more snow fell that day.
Loading the daily snowfall…
Climate change
Average winter temperature at the summit
Faster warming than 62% of 736 resorts
+2.3°C+4.1°F
The trend: from -8°C18°F to -6°C22°F. Point at a winter to read it.
Snowfall at the summit
−25%
The trend: from 3.6 m141 in to 2.7 m106 in. Point at a winter to read it.
Powder days at the summit
−3 days
The trend: from 11 to 8. Point at a winter to read it.
Days with a base at the summit
−60 days
The trend: from 145 to 85. Point at a winter to read it.
Days with fresh snow at the summit
−11 days
The trend: from 51 to 40. Point at a winter to read it.
Each dot is one winter. The curve is a running average over about ten winters; the dotted line is the straight trend through all of them, and the changes above are measured along it. One winter is weather; the trend is climate.
Then and now
Then 1950/51–1979/80Now 1996/97–2025/26
- Snowfall at the summit−20%
Then
3.6 m141 in
Now
2.9 m113 in
- Snowfall in the village−28%
Then
2.9 m113 in
Now
2.1 m81 in
- Powder days at the summit−3 days
Then
11
Now
9
- Days with a base at the summit−37 days
Then
139
Now
102
- Average temperature at the summit+1.3°C+2.4°F
Then
-7°C19°F
Now
-6°C21°F
Averages per winter over the first and last 30 winters. A powder day brings 10 cm4 in or more of new snow; a base is 30 cm12 in or more on the ground.
Records
All winters
- 1950s1950/514.4 m175 in1951/521.6 m62 in1952/531.9 m74 in1953/542.5 m98 in1954/553.7 m144 in1955/563.8 m151 in1956/572.6 m104 in1957/583.5 m137 in1958/594.1 m161 in1959/606.2 m243 in
- 1960s1960/612.6 m102 in1961/624.2 m163 in1962/634.5 m176 in1963/643.3 m131 in1964/652.3 m91 in1965/663.0 m118 in1966/672.4 m93 in1967/682.6 m104 in1968/694.0 m156 in1969/703.3 m131 in
- 1970s1970/714.6 m181 in1971/725.6 m219 in1972/732.8 m109 in1973/744.8 m188 in1974/753.4 m134 in1975/763.7 m147 in1976/774.2 m165 in1977/785.3 m207 in1978/793.6 m143 in1979/803.3 m128 in
- 1980s1980/812.4 m93 in1981/823.1 m121 in1982/833.3 m131 in1983/843.1 m123 in1984/853.1 m122 in1985/864.6 m183 in1986/872.8 m111 in1987/882.7 m105 in1988/892.1 m83 in1989/901.6 m63 in
- 1990s1990/913.0 m118 in1991/921.8 m69 in1992/932.6 m102 in1993/942.7 m105 in1994/951.5 m59 in1995/964.1 m162 in1996/973.2 m127 in1997/982.9 m114 in1998/992.3 m91 in1999/002.0 m80 in
- 2000s2000/014.0 m156 in2001/022.3 m91 in2002/032.8 m110 in2003/043.4 m135 in2004/051.8 m72 in2005/062.0 m79 in2006/071.0 m40 in2007/083.0 m119 in2008/095.2 m204 in2009/103.9 m152 in
- 2010s2010/113.6 m141 in2011/122.0 m77 in2012/134.1 m161 in2013/144.6 m181 in2014/152.9 m115 in2015/162.0 m78 in2016/172.4 m94 in2017/184.4 m174 in2018/192.2 m85 in2019/203.0 m117 in
- 2020s2020/212.7 m105 in2021/221.6 m63 in2022/231.7 m68 in2023/243.6 m141 in2024/252.3 m92 in2025/263.0 m119 in
Modelled weather from ERA5 and ERA5-Land, not measured on the slopes. Snow depth is the average over a grid cell about 9 km wide, so it can differ a lot from what the piste report says. How SnowOdds works