HiOne Ski, 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 59% of 736 resorts
+2.2°C+4.0°F
The trend: from -5°C22°F to -3°C27°F. Point at a winter to read it.
Snowfall at the summit
−24%
The trend: from 84 cm33 in to 63 cm25 in. Point at a winter to read it.
Powder days at the summit
−1 day
The trend: from 1 to 1. Point at a winter to read it.
Days with a base at the summit
−11 days
The trend: from 11 to 0. Point at a winter to read it.
Days with fresh snow at the summit
−4 days
The trend: from 20 to 16. 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
79.467 cm31 in
Now
63.3 cm25 in
- Snowfall in the village−24%
Then
44.167 cm17 in
Now
33.533 cm13 in
- Powder days at the summit±0 days
Then
1
Now
1
- Days with a base at the summit−8 days
Then
10
Now
2
- Average temperature at the summit+1.4°C+2.5°F
Then
-5°C23°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
- 1950s1950/5186 cm34 in1951/5266 cm26 in1952/5333 cm13 in1953/5457 cm22 in1954/5530 cm12 in1955/5691 cm36 in1956/5778 cm31 in1957/581.0 m41 in1958/5997 cm38 in1959/6044 cm17 in
- 1960s1960/6192 cm36 in1961/6250 cm20 in1962/631.0 m40 in1963/641.1 m43 in1964/6562 cm24 in1965/6682 cm32 in1966/6765 cm26 in1967/6830 cm12 in1968/691.4 m55 in1969/7063 cm25 in
- 1970s1970/7193 cm37 in1971/721.2 m48 in1972/7390 cm35 in1973/7477 cm30 in1974/751.0 m40 in1975/7698 cm39 in1976/7755 cm22 in1977/7879 cm31 in1978/791.2 m47 in1979/8071 cm28 in
- 1980s1980/8171 cm28 in1981/8252 cm20 in1982/8386 cm34 in1983/8475 cm30 in1984/8570 cm28 in1985/8675 cm30 in1986/871.1 m43 in1987/8856 cm22 in1988/891.1 m44 in1989/9080 cm31 in
- 1990s1990/911.2 m45 in1991/921.2 m47 in1992/931.0 m41 in1993/9457 cm22 in1994/9558 cm23 in1995/9667 cm26 in1996/9741 cm16 in1997/9888 cm35 in1998/9944 cm17 in1999/0046 cm18 in
- 2000s2000/011.1 m42 in2001/0247 cm19 in2002/031.3 m50 in2003/0451 cm20 in2004/0584 cm33 in2005/0650 cm20 in2006/0737 cm15 in2007/0870 cm28 in2008/0941 cm16 in2009/101.0 m40 in
- 2010s2010/1172 cm28 in2011/1292 cm36 in2012/1390 cm35 in2013/1461 cm24 in2014/1545 cm18 in2015/1642 cm17 in2016/1747 cm19 in2017/181.0 m39 in2018/1955 cm22 in2019/2047 cm19 in
- 2020s2020/2129 cm11 in2021/2231 cm12 in2022/2331 cm12 in2023/241.0 m41 in2024/2575 cm30 in2025/2644 cm17 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