O2 Resort, South Korea. 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 52% of 736 resorts
+2.2°C+3.9°F
The trend: from -5°C23°F to -3°C27°F. Point at a winter to read it.
Snowfall at the summit
−24%
The trend: from 1.1 m43 in to 83 cm33 in. Point at a winter to read it.
Powder days at the summit
−1 day
The trend: from 2 to 2. Point at a winter to read it.
Days with a base at the summit
−13 days
The trend: from 16 to 3. Point at a winter to read it.
Days with fresh snow at the summit
−4 days
The trend: from 21 to 17. 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
1.0 m41 in
Now
82.8 cm33 in
- Snowfall in the village−24%
Then
68.733 cm27 in
Now
52 cm20 in
- Powder days at the summit−1 day
Then
2
Now
2
- Days with a base at the summit−10 days
Then
14
Now
4
- Average temperature at the summit+1.3°C+2.4°F
Then
-5°C24°F
Now
-3°C26°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
- 1950s1950/511.0 m41 in1951/5294 cm37 in1952/5342 cm17 in1953/5499 cm39 in1954/5536 cm14 in1955/561.3 m49 in1956/5798 cm39 in1957/581.2 m47 in1958/591.5 m60 in1959/6070 cm28 in
- 1960s1960/611.1 m44 in1961/6264 cm25 in1962/631.4 m53 in1963/641.5 m59 in1964/6561 cm24 in1965/661.0 m40 in1966/6779 cm31 in1967/6827 cm11 in1968/691.8 m71 in1969/7060 cm24 in
- 1970s1970/711.2 m49 in1971/721.8 m70 in1972/731.1 m43 in1973/7494 cm37 in1974/751.4 m56 in1975/761.4 m54 in1976/7771 cm28 in1977/7893 cm37 in1978/791.7 m66 in1979/8093 cm37 in
- 1980s1980/8166 cm26 in1981/8266 cm26 in1982/8397 cm38 in1983/8491 cm36 in1984/8589 cm35 in1985/8678 cm31 in1986/871.3 m51 in1987/8882 cm32 in1988/891.6 m61 in1989/901.3 m51 in
- 1990s1990/911.3 m53 in1991/921.8 m71 in1992/931.5 m58 in1993/9469 cm27 in1994/9580 cm31 in1995/9684 cm33 in1996/9756 cm22 in1997/981.3 m50 in1998/9964 cm25 in1999/0058 cm23 in
- 2000s2000/011.3 m49 in2001/0257 cm22 in2002/031.7 m67 in2003/0449 cm19 in2004/051.1 m43 in2005/0658 cm23 in2006/0751 cm20 in2007/0888 cm35 in2008/0948 cm19 in2009/101.4 m56 in
- 2010s2010/111.1 m42 in2011/121.4 m56 in2012/131.0 m41 in2013/141.0 m40 in2014/1546 cm18 in2015/1658 cm23 in2016/1771 cm28 in2017/181.2 m47 in2018/1966 cm26 in2019/2073 cm29 in
- 2020s2020/2133 cm13 in2021/2234 cm13 in2022/2343 cm17 in2023/241.5 m57 in2024/2588 cm35 in2025/2654 cm21 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