76 winters, day by day
Airolo Pesciüm, Switzerland. Every ski winter from 1950/51 to 2025/26.
Airolo Pesciüm, 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 32% of 736 resorts
+1.9°C+3.4°F
The trend: from -9°C16°F to -7°C19°F. Point at a winter to read it.
Snowfall at the summit
−7%
The trend: from 5.5 m217 in to 5.1 m201 in. Point at a winter to read it.
Powder days at the summit
−1 day
The trend: from 15 to 14. Point at a winter to read it.
Days with a base at the summit
−7 days
The trend: from 177 to 170. Point at a winter to read it.
Days with fresh snow at the summit
−8 days
The trend: from 85 to 77. 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−4%
Then
5.4 m213 in
Now
5.2 m205 in
- Snowfall in the village−17%
Then
2.6 m101 in
Now
2.1 m84 in
- Powder days at the summit±0 days
Then
15
Now
15
- Days with a base at the summit−4 days
Then
176
Now
172
- Average temperature at the summit+1.1°C+1.9°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
- 1950s1950/518.4 m332 in1951/525.7 m224 in1952/534.5 m177 in1953/543.5 m139 in1954/556.0 m236 in1955/564.1 m161 in1956/573.1 m120 in1957/586.4 m251 in1958/595.1 m200 in1959/605.7 m225 in
- 1960s1960/615.0 m197 in1961/625.4 m214 in1962/635.9 m231 in1963/645.3 m209 in1964/653.9 m154 in1965/665.9 m233 in1966/676.1 m239 in1967/685.9 m234 in1968/694.2 m164 in1969/707.3 m287 in
- 1970s1970/714.5 m178 in1971/725.6 m222 in1972/733.9 m152 in1973/745.4 m212 in1974/757.2 m284 in1975/763.6 m140 in1976/777.5 m297 in1977/786.8 m268 in1978/795.2 m205 in1979/805.6 m220 in
- 1980s1980/814.5 m175 in1981/825.3 m209 in1982/836.6 m259 in1983/845.2 m206 in1984/854.7 m183 in1985/867.9 m311 in1986/875.0 m197 in1987/885.6 m220 in1988/896.0 m235 in1989/905.0 m196 in
- 1990s1990/915.3 m210 in1991/925.2 m204 in1992/933.8 m151 in1993/945.4 m211 in1994/956.2 m244 in1995/963.2 m128 in1996/975.2 m204 in1997/986.0 m235 in1998/996.1 m239 in1999/005.7 m223 in
- 2000s2000/018.1 m319 in2001/023.4 m133 in2002/036.2 m244 in2003/045.5 m217 in2004/053.5 m136 in2005/063.8 m151 in2006/074.0 m157 in2007/085.6 m220 in2008/097.0 m276 in2009/104.5 m175 in
- 2010s2010/113.4 m133 in2011/125.2 m206 in2012/135.9 m231 in2013/146.0 m238 in2014/156.5 m255 in2015/164.7 m186 in2016/174.5 m178 in2017/186.5 m257 in2018/195.9 m233 in2019/205.9 m233 in
- 2020s2020/214.3 m169 in2021/223.5 m137 in2022/233.6 m143 in2023/247.7 m303 in2024/254.1 m160 in2025/263.7 m144 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