76 winters, day by day
Yongpyong Resort, South Korea. Every ski winter from 1950/51 to 2025/26.
Yongpyong 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.
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Climate change
Average winter temperature at the summit
Faster warming than 63% of 736 resorts
+2.3°C+4.1°F
The trend: from -6°C21°F to -4°C25°F. Point at a winter to read it.
Snowfall at the summit
−29%
The trend: from 1.3 m51 in to 92 cm36 in. Point at a winter to read it.
Powder days at the summit
−1 day
The trend: from 3 to 2. Point at a winter to read it.
Days with a base at the summit
−12 days
The trend: from 22 to 10. Point at a winter to read it.
Days with fresh snow at the summit
−5 days
The trend: from 24 to 18. 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−23%
Then
1.2 m48 in
Now
94.6 cm37 in
- Snowfall in the village−23%
Then
1.2 m48 in
Now
94.667 cm37 in
- Powder days at the summit−1 day
Then
3
Now
2
- Days with a base at the summit−8 days
Then
20
Now
11
- Average temperature at the summit+1.4°C+2.5°F
Then
-6°C22°F
Now
-4°C24°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
- 1950s1950/511.1 m44 in1951/521.2 m46 in1952/5366 cm26 in1953/541.3 m51 in1954/5551 cm20 in1955/561.6 m62 in1956/571.2 m47 in1957/581.3 m52 in1958/591.8 m72 in1959/6079 cm31 in
- 1960s1960/611.2 m48 in1961/6290 cm35 in1962/631.9 m74 in1963/641.6 m61 in1964/6567 cm26 in1965/661.2 m46 in1966/6792 cm36 in1967/6828 cm11 in1968/692.2 m88 in1969/7085 cm33 in
- 1970s1970/711.4 m57 in1971/722.3 m89 in1972/731.1 m45 in1973/741.1 m41 in1974/751.5 m57 in1975/761.4 m54 in1976/7786 cm34 in1977/781.2 m46 in1978/791.9 m73 in1979/8095 cm37 in
- 1980s1980/8179 cm31 in1981/821.0 m40 in1982/831.1 m43 in1983/8495 cm37 in1984/8593 cm37 in1985/8690 cm35 in1986/871.5 m59 in1987/881.0 m39 in1988/891.7 m66 in1989/901.6 m61 in
- 1990s1990/911.4 m55 in1991/922.0 m80 in1992/931.7 m65 in1993/9489 cm35 in1994/9589 cm35 in1995/9698 cm39 in1996/9766 cm26 in1997/981.3 m51 in1998/9982 cm32 in1999/0068 cm27 in
- 2000s2000/011.4 m56 in2001/0251 cm20 in2002/031.9 m76 in2003/0445 cm18 in2004/051.2 m48 in2005/0667 cm26 in2006/0764 cm25 in2007/0882 cm32 in2008/0966 cm26 in2009/101.7 m68 in
- 2010s2010/111.3 m51 in2011/121.7 m65 in2012/131.4 m54 in2013/141.4 m53 in2014/1561 cm24 in2015/1669 cm27 in2016/1786 cm34 in2017/181.1 m45 in2018/1959 cm23 in2019/2074 cm29 in
- 2020s2020/2156 cm22 in2021/2238 cm15 in2022/2348 cm19 in2023/241.6 m64 in2024/2588 cm35 in2025/2667 cm26 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