76 winters, day by day
Flumserberg, Switzerland. Every ski winter from 1950/51 to 2025/26.
Flumserberg, 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 54% of 736 resorts
+2.2°C+3.9°F
The trend: from -8°C17°F to -6°C21°F. Point at a winter to read it.
Snowfall at the summit
−17%
The trend: from 5.2 m206 in to 4.4 m172 in. Point at a winter to read it.
Powder days at the summit
−3 days
The trend: from 17 to 13. Point at a winter to read it.
Days with a base at the summit
−10 days
The trend: from 168 to 158. Point at a winter to read it.
Days with a base in the village
−14 days
The trend: from 163 to 150. 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−11%
Then
5.0 m198 in
Now
4.5 m177 in
- Snowfall in the village−24%
Then
1.6 m63 in
Now
1.2 m48 in
- Powder days at the summit−2 days
Then
16
Now
14
- Days with a base at the summit−5 days
Then
166
Now
161
- Days with a base in the village−8 days
Then
161
Now
153
- Average temperature at the summit+1.2°C+2.1°F
Then
-8°C18°F
Now
-7°C20°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 m246 in1951/524.9 m194 in1952/535.1 m199 in1953/543.7 m145 in1954/555.6 m220 in1955/563.9 m153 in1956/573.1 m122 in1957/585.1 m201 in1958/593.5 m139 in1959/604.6 m180 in
- 1960s1960/613.9 m155 in1961/625.4 m213 in1962/635.1 m201 in1963/642.7 m106 in1964/655.0 m198 in1965/666.3 m246 in1966/677.4 m291 in1967/685.9 m231 in1968/694.3 m171 in1969/708.0 m314 in
- 1970s1970/713.7 m144 in1971/723.6 m143 in1972/735.3 m210 in1973/745.3 m210 in1974/757.0 m274 in1975/763.4 m135 in1976/776.0 m235 in1977/786.1 m238 in1978/794.3 m170 in1979/806.5 m254 in
- 1980s1980/815.4 m213 in1981/826.7 m262 in1982/835.3 m207 in1983/845.2 m205 in1984/854.4 m174 in1985/865.3 m209 in1986/875.3 m209 in1987/885.9 m233 in1988/894.3 m171 in1989/903.9 m153 in
- 1990s1990/913.6 m142 in1991/925.7 m225 in1992/933.8 m151 in1993/944.9 m193 in1994/956.0 m235 in1995/963.2 m127 in1996/974.6 m181 in1997/984.6 m181 in1998/997.3 m287 in1999/006.4 m254 in
- 2000s2000/016.0 m235 in2001/023.7 m145 in2002/034.0 m159 in2003/044.8 m189 in2004/054.0 m156 in2005/064.3 m169 in2006/073.5 m136 in2007/085.6 m221 in2008/095.3 m209 in2009/103.4 m135 in
- 2010s2010/112.8 m108 in2011/126.0 m236 in2012/134.6 m182 in2013/143.9 m155 in2014/154.5 m177 in2015/164.1 m160 in2016/173.7 m144 in2017/185.2 m204 in2018/195.1 m199 in2019/204.1 m163 in
- 2020s2020/214.4 m172 in2021/223.9 m154 in2022/233.3 m128 in2023/245.9 m233 in2024/253.0 m117 in2025/263.2 m125 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