76 winters, day by day
Koktokay Ski Resort, China. Every ski winter from 1950/51 to 2025/26.
Koktokay Ski Resort, China. 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 33% of 736 resorts
+1.9°C+3.4°F
The trend: from -21°C-6°F to -19°C-2°F. Point at a winter to read it.
Snowfall at the summit
+10%
The trend: from 1.3 m50 in to 1.4 m55 in. Point at a winter to read it.
Powder days at the summit
+1 day
The trend: from 1 to 2. Point at a winter to read it.
Days with a base at the summit
−9 days
The trend: from 171 to 162. Point at a winter to read it.
Days with a base in the village
−28 days
The trend: from 158 to 131. 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+6%
Then
1.3 m51 in
Now
1.4 m54 in
- Snowfall in the village+3%
Then
1.2 m46 in
Now
1.2 m48 in
- Powder days at the summit+1 day
Then
1
Now
2
- Days with a base at the summit−6 days
Then
170
Now
163
- Days with a base in the village−20 days
Then
154
Now
133
- Average temperature at the summit+1.2°C+2.2°F
Then
-21°C-5°F
Now
-19°C-3°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
- 1950s1950/5183 cm33 in1951/521.5 m57 in1952/531.1 m43 in1953/541.3 m52 in1954/551.9 m73 in1955/561.3 m52 in1956/571.3 m52 in1957/581.6 m62 in1958/591.3 m52 in1959/601.3 m52 in
- 1960s1960/611.0 m41 in1961/6264 cm25 in1962/631.3 m49 in1963/641.2 m46 in1964/6585 cm33 in1965/662.0 m78 in1966/671.2 m46 in1967/681.3 m51 in1968/691.9 m73 in1969/7091 cm36 in
- 1970s1970/711.7 m67 in1971/721.5 m59 in1972/731.6 m61 in1973/7490 cm35 in1974/751.6 m65 in1975/761.3 m51 in1976/771.3 m49 in1977/7883 cm33 in1978/791.6 m62 in1979/801.3 m49 in
- 1980s1980/811.5 m59 in1981/8267 cm26 in1982/8381 cm32 in1983/8491 cm36 in1984/851.3 m49 in1985/861.1 m44 in1986/871.4 m56 in1987/882.2 m87 in1988/891.1 m45 in1989/901.3 m52 in
- 1990s1990/911.6 m64 in1991/921.3 m52 in1992/931.7 m67 in1993/941.5 m58 in1994/951.3 m52 in1995/961.1 m44 in1996/971.3 m51 in1997/981.7 m69 in1998/991.7 m69 in1999/0084 cm33 in
- 2000s2000/012.0 m80 in2001/021.3 m50 in2002/031.3 m50 in2003/041.3 m52 in2004/051.3 m49 in2005/061.9 m74 in2006/0760 cm24 in2007/081.3 m50 in2008/091.2 m49 in2009/102.7 m104 in
- 2010s2010/111.4 m53 in2011/121.0 m40 in2012/131.5 m59 in2013/141.0 m40 in2014/151.1 m43 in2015/161.5 m61 in2016/171.5 m61 in2017/181.2 m49 in2018/191.2 m47 in2019/2087 cm34 in
- 2020s2020/211.0 m39 in2021/221.6 m61 in2022/231.5 m59 in2023/241.9 m74 in2024/251.4 m56 in2025/261.3 m52 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