76 winters, day by day
Brunni-Holzegg-Rotenflue, Switzerland. Every ski winter from 1950/51 to 2025/26.
Brunni-Holzegg-Rotenflue, 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.
Loading the daily snowfall…
Climate change
Average winter temperature at the summit
Faster warming than 43% of 736 resorts
+2.0°C+3.6°F
The trend: from -4°C24°F to -2°C28°F. Point at a winter to read it.
Snowfall at the summit
−18%
The trend: from 4.5 m178 in to 3.7 m146 in. Point at a winter to read it.
Powder days at the summit
−4 days
The trend: from 13 to 10. Point at a winter to read it.
Days with a base at the summit
−11 days
The trend: from 162 to 151. Point at a winter to read it.
Days with a base in the village
−13 days
The trend: from 159 to 145. 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−12%
Then
4.3 m171 in
Now
3.8 m151 in
- Snowfall in the village−23%
Then
2.0 m79 in
Now
1.6 m61 in
- Powder days at the summit−2 days
Then
12
Now
10
- Days with a base at the summit−6 days
Then
160
Now
155
- Days with a base in the village−8 days
Then
157
Now
149
- Average temperature at the summit+1.1°C+2.0°F
Then
-4°C25°F
Now
-3°C27°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
- 1950s1950/515.4 m211 in1951/524.2 m167 in1952/534.6 m181 in1953/543.4 m134 in1954/554.6 m180 in1955/563.2 m127 in1956/572.3 m92 in1957/584.8 m187 in1958/593.2 m124 in1959/603.7 m146 in
- 1960s1960/613.4 m132 in1961/624.5 m177 in1962/634.6 m182 in1963/642.5 m97 in1964/654.3 m167 in1965/665.3 m207 in1966/676.2 m245 in1967/685.5 m215 in1968/693.9 m152 in1969/706.8 m267 in
- 1970s1970/713.2 m126 in1971/723.3 m131 in1972/734.6 m183 in1973/744.5 m177 in1974/755.9 m232 in1975/763.1 m124 in1976/775.2 m203 in1977/785.2 m206 in1978/793.8 m148 in1979/805.3 m209 in
- 1980s1980/814.9 m191 in1981/825.9 m234 in1982/834.8 m187 in1983/844.6 m181 in1984/853.5 m137 in1985/864.6 m182 in1986/874.3 m170 in1987/885.2 m206 in1988/894.0 m159 in1989/902.9 m113 in
- 1990s1990/913.2 m125 in1991/924.7 m186 in1992/933.1 m121 in1993/944.2 m167 in1994/955.0 m196 in1995/962.8 m108 in1996/973.6 m143 in1997/983.9 m152 in1998/996.3 m248 in1999/005.2 m206 in
- 2000s2000/015.0 m195 in2001/022.9 m113 in2002/033.5 m139 in2003/044.4 m172 in2004/053.8 m148 in2005/063.8 m151 in2006/072.9 m113 in2007/084.5 m178 in2008/094.7 m184 in2009/103.2 m125 in
- 2010s2010/112.5 m100 in2011/125.0 m196 in2012/134.2 m166 in2013/143.6 m140 in2014/154.0 m157 in2015/163.7 m145 in2016/172.9 m114 in2017/184.1 m163 in2018/194.4 m174 in2019/203.2 m126 in
- 2020s2020/214.0 m156 in2021/223.4 m135 in2022/232.5 m97 in2023/244.6 m180 in2024/252.5 m100 in2025/262.9 m116 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