Portillo, Chile. 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 4% of 736 resorts
+0.8°C+1.4°F
The trend: from -7°C20°F to -6°C22°F. Point at a winter to read it.
Snowfall at the summit
−6%
The trend: from 3.1 m120 in to 2.9 m113 in. Point at a winter to read it.
Powder days at the summit
−1 day
The trend: from 9 to 8. Point at a winter to read it.
Days with a base at the summit
−2 days
The trend: from 151 to 149. Point at a winter to read it.
Days with a base in the village
+1 day
The trend: from 142 to 142. 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+1%
Then
2.8 m111 in
Now
2.8 m112 in
- Snowfall in the village+5%
Then
1.8 m71 in
Now
1.9 m75 in
- Powder days at the summit±0 days
Then
8
Now
8
- Days with a base at the summit−1 day
Then
150
Now
149
- Days with a base in the village+1 day
Then
140
Now
141
- Average temperature at the summit+0.5°C+0.8°F
Then
-6°C20°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
- 1950s19501.5 m57 in19513.5 m139 in19521.8 m71 in19533.2 m127 in19544.6 m182 in195585 cm33 in19563.0 m118 in19573.9 m152 in19582.1 m83 in19593.5 m136 in
- 1960s19603.0 m117 in19612.9 m113 in19623.1 m122 in19633.9 m154 in19642.0 m77 in19653.7 m144 in19662.7 m105 in19671.8 m71 in19681.2 m48 in19692.4 m93 in
- 1970s19701.5 m57 in19711.8 m70 in19724.5 m177 in19732.7 m106 in19742.6 m102 in19752.0 m79 in19762.8 m109 in19774.8 m190 in19785.6 m221 in19792.0 m80 in
- 1980s19802.4 m93 in19811.3 m51 in19828.2 m321 in19833.7 m147 in19846.1 m238 in19852.0 m78 in19863.4 m133 in19876.7 m262 in19881.7 m69 in19893.5 m137 in
- 1990s19902.4 m93 in19913.6 m143 in19923.1 m122 in19931.9 m73 in19942.3 m91 in19952.7 m107 in19961.4 m57 in19976.7 m263 in199895 cm37 in19992.9 m112 in
- 2000s20004.2 m164 in20013.5 m139 in20024.2 m166 in20032.0 m80 in20042.4 m96 in20054.7 m186 in20064.8 m187 in20073.1 m123 in20083.2 m126 in20093.7 m144 in
- 2010s20101.8 m71 in20112.7 m107 in20121.8 m71 in20132.1 m83 in20142.3 m92 in20153.9 m154 in20162.5 m98 in20171.7 m67 in20182.4 m93 in20191.1 m43 in
- 2020s20202.4 m93 in20211.5 m58 in20222.2 m87 in20233.8 m150 in20243.2 m127 in20252.0 m80 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