76 winters, day by day
Chapelco Ski Resort, Argentina. Every ski winter from 1950 to 2025.
Chapelco Ski Resort, Argentina. Every ski winter from 1950 to 2025.
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 0% of 736 resorts
+0.2°C+0.4°F
The trend: from -3°C26°F to -3°C27°F. Point at a winter to read it.
Snowfall at the summit
+13%
The trend: from 3.4 m135 in to 3.9 m153 in. Point at a winter to read it.
Powder days at the summit
+3 days
The trend: from 9 to 13. Point at a winter to read it.
Days with a base at the summit
+5 days
The trend: from 111 to 116. Point at a winter to read it.
Days with fresh snow at the summit
−3 days
The trend: from 57 to 55. 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 1950–1979Now 1996–2025
- Snowfall at the summit+7%
Then
3.6 m140 in
Now
3.8 m150 in
- Snowfall in the village−12%
Then
1.3 m50 in
Now
1.1 m44 in
- Powder days at the summit+2 days
Then
10
Now
12
- Days with a base at the summit+2 days
Then
113
Now
115
- Average temperature at the summit+0.2°C+0.3°F
Then
-3°C26°F
Now
-3°C27°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
- 1950s19503.5 m137 in19513.0 m117 in19522.9 m113 in19534.1 m162 in19544.0 m157 in19552.5 m100 in19564.1 m161 in19573.7 m145 in19583.3 m131 in19593.9 m153 in
- 1960s19603.8 m150 in19613.7 m144 in19622.0 m78 in19633.5 m139 in19643.6 m140 in19652.9 m115 in19663.6 m142 in19673.6 m142 in19682.0 m77 in19694.1 m162 in
- 1970s19703.7 m147 in19714.3 m169 in19723.4 m135 in19734.2 m164 in19742.8 m110 in19754.5 m175 in19763.8 m149 in19774.4 m172 in19783.7 m145 in19794.2 m165 in
- 1980s19803.8 m151 in19812.5 m97 in19825.3 m207 in19834.4 m175 in19845.0 m197 in19851.8 m69 in19862.4 m94 in19872.7 m106 in19883.7 m146 in19893.1 m123 in
- 1990s19902.2 m86 in19913.4 m132 in19923.8 m148 in19934.7 m186 in19943.8 m150 in19955.2 m206 in19962.1 m84 in19973.4 m135 in19982.3 m91 in19994.0 m156 in
- 2000s20005.4 m213 in20014.3 m169 in20024.0 m159 in20033.9 m154 in20044.1 m161 in20054.1 m163 in20064.8 m188 in20074.6 m181 in20084.3 m168 in20093.7 m145 in
- 2010s20103.9 m155 in20113.8 m150 in20122.5 m98 in20133.4 m135 in20143.6 m142 in20154.1 m160 in20162.8 m109 in20174.6 m181 in20183.6 m141 in20194.3 m170 in
- 2020s20204.9 m193 in20212.5 m100 in20224.4 m174 in20234.9 m193 in20243.6 m142 in20252.0 m78 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