76 winters, day by day
Ylläs Ski Resort, Finland. Every ski winter from 1950/51 to 2025/26.
Ylläs Ski Resort, Finland. 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 73% of 736 resorts
+2.5°C+4.5°F
The trend: from -10°C13°F to -8°C18°F. Point at a winter to read it.
Snowfall at the summit
+15%
The trend: from 1.3 m51 in to 1.5 m58 in. Point at a winter to read it.
Powder days at the summit
±0 days
The trend: from 0 to 0. Point at a winter to read it.
Days with a base at the summit
−4 days
The trend: from 153 to 149. Point at a winter to read it.
Days with fresh snow at the summit
+4 days
The trend: from 43 to 47. 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+8%
Then
1.3 m52 in
Now
1.4 m57 in
- Snowfall in the village+8%
Then
1.4 m54 in
Now
1.5 m58 in
- Powder days at the summit±0 days
Then
0
Now
0
- Days with a base at the summit−4 days
Then
153
Now
149
- Average temperature at the summit+1.5°C+2.7°F
Then
-10°C15°F
Now
-8°C17°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
- 1950s1950/511.3 m50 in1951/521.7 m69 in1952/531.4 m56 in1953/5486 cm34 in1954/551.5 m59 in1955/561.3 m49 in1956/571.0 m41 in1957/581.2 m47 in1958/591.4 m56 in1959/601.1 m43 in
- 1960s1960/611.4 m56 in1961/621.3 m52 in1962/6391 cm36 in1963/641.1 m45 in1964/651.6 m62 in1965/661.1 m43 in1966/671.8 m72 in1967/681.2 m48 in1968/691.3 m52 in1969/701.4 m57 in
- 1970s1970/711.2 m46 in1971/721.2 m45 in1972/731.9 m76 in1973/741.5 m58 in1974/751.4 m56 in1975/761.2 m46 in1976/771.8 m70 in1977/781.2 m49 in1978/791.2 m45 in1979/801.4 m54 in
- 1980s1980/811.4 m57 in1981/821.1 m44 in1982/831.3 m51 in1983/841.4 m56 in1984/851.0 m40 in1985/861.2 m49 in1986/871.2 m49 in1987/881.3 m52 in1988/891.6 m61 in1989/901.2 m48 in
- 1990s1990/911.5 m61 in1991/921.5 m60 in1992/931.7 m67 in1993/941.5 m57 in1994/951.7 m66 in1995/961.2 m48 in1996/971.9 m74 in1997/981.6 m62 in1998/991.2 m47 in1999/002.1 m81 in
- 2000s2000/011.3 m50 in2001/021.3 m49 in2002/0390 cm35 in2003/041.1 m45 in2004/051.6 m61 in2005/061.2 m46 in2006/071.6 m61 in2007/081.8 m70 in2008/091.2 m46 in2009/101.3 m49 in
- 2010s2010/1173 cm29 in2011/121.6 m63 in2012/131.4 m54 in2013/141.6 m62 in2014/151.7 m65 in2015/161.9 m75 in2016/171.6 m63 in2017/181.4 m57 in2018/191.3 m52 in2019/201.9 m76 in
- 2020s2020/211.4 m57 in2021/221.3 m53 in2022/231.5 m60 in2023/241.5 m58 in2024/251.3 m51 in2025/261.3 m51 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