76 winters, day by day
Adelboden - Lenk, Switzerland. Every ski winter from 1950/51 to 2025/26.
Adelboden - Lenk, Switzerland. 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 57% of 736 resorts
+2.2°C+4.0°F
The trend: from -9°C16°F to -7°C20°F. Point at a winter to read it.
Snowfall at the summit
−10%
The trend: from 5.9 m230 in to 5.3 m207 in. Point at a winter to read it.
Powder days at the summit
−2 days
The trend: from 19 to 18. Point at a winter to read it.
Days with a base at the summit
−8 days
The trend: from 169 to 161. Point at a winter to read it.
Days with fresh snow at the summit
−7 days
The trend: from 78 to 71. 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−7%
Then
5.7 m224 in
Now
5.3 m208 in
- Snowfall in the village−12%
Then
3.8 m151 in
Now
3.4 m133 in
- Powder days at the summit−1 day
Then
19
Now
18
- Days with a base at the summit−5 days
Then
168
Now
163
- Average temperature at the summit+1.2°C+2.2°F
Then
-8°C17°F
Now
-7°C19°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
- 1950s1950/516.3 m250 in1951/526.1 m239 in1952/535.8 m228 in1953/543.9 m154 in1954/556.1 m241 in1955/564.5 m179 in1956/573.5 m139 in1957/586.4 m250 in1958/594.4 m175 in1959/605.6 m219 in
- 1960s1960/615.0 m196 in1961/625.5 m218 in1962/635.8 m228 in1963/643.0 m119 in1964/655.9 m233 in1965/667.9 m312 in1966/677.1 m278 in1967/686.1 m239 in1968/695.7 m225 in1969/709.1 m359 in
- 1970s1970/713.8 m148 in1971/724.3 m167 in1972/735.3 m208 in1973/745.3 m207 in1974/756.9 m271 in1975/763.7 m145 in1976/776.9 m270 in1977/787.5 m295 in1978/795.5 m218 in1979/807.7 m305 in
- 1980s1980/816.2 m242 in1981/827.6 m300 in1982/836.6 m258 in1983/845.9 m233 in1984/854.9 m194 in1985/866.1 m241 in1986/876.9 m270 in1987/887.1 m278 in1988/895.3 m208 in1989/904.6 m180 in
- 1990s1990/914.5 m176 in1991/926.0 m235 in1992/934.6 m180 in1993/946.3 m248 in1994/957.5 m297 in1995/963.5 m139 in1996/975.7 m226 in1997/985.0 m196 in1998/998.0 m314 in1999/006.6 m258 in
- 2000s2000/016.2 m246 in2001/024.4 m172 in2002/035.1 m202 in2003/045.0 m198 in2004/054.7 m185 in2005/064.5 m177 in2006/074.3 m168 in2007/086.4 m254 in2008/095.6 m222 in2009/103.8 m150 in
- 2010s2010/113.0 m119 in2011/126.3 m248 in2012/136.4 m253 in2013/144.6 m182 in2014/155.3 m208 in2015/165.6 m219 in2016/174.1 m162 in2017/186.8 m269 in2018/196.0 m237 in2019/205.5 m217 in
- 2020s2020/214.8 m189 in2021/224.8 m187 in2022/234.3 m168 in2023/247.0 m274 in2024/254.2 m164 in2025/264.2 m167 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