Ylläs, 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 72% of 736 resorts
+2.5°C+4.5°F
The trend: from -12°C10°F to -10°C14°F. Point at a winter to read it.
Snowfall at the summit
+15%
The trend: from 1.3 m50 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 151 to 147. 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+9%
Then
1.3 m52 in
Now
1.4 m57 in
- Snowfall in the village+9%
Then
1.3 m52 in
Now
1.4 m57 in
- Powder days at the summit±0 days
Then
0
Now
0
- Days with a base at the summit−4 days
Then
152
Now
148
- Average temperature at the summit+1.5°C+2.7°F
Then
-12°C11°F
Now
-10°C13°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 m52 in1951/521.8 m71 in1952/531.5 m58 in1953/5483 cm33 in1954/551.5 m57 in1955/561.2 m48 in1956/571.0 m39 in1957/581.3 m49 in1958/591.4 m57 in1959/601.1 m44 in
- 1960s1960/611.4 m56 in1961/621.4 m53 in1962/6391 cm36 in1963/641.2 m47 in1964/651.5 m59 in1965/661.1 m44 in1966/671.7 m69 in1967/681.2 m48 in1968/691.2 m49 in1969/701.4 m54 in
- 1970s1970/711.1 m44 in1971/721.2 m46 in1972/731.9 m76 in1973/741.5 m60 in1974/751.4 m54 in1975/761.1 m45 in1976/771.7 m68 in1977/781.2 m48 in1978/791.2 m46 in1979/801.4 m53 in
- 1980s1980/811.5 m57 in1981/821.1 m41 in1982/831.3 m50 in1983/841.5 m59 in1984/851.0 m41 in1985/861.3 m50 in1986/871.3 m51 in1987/881.2 m48 in1988/891.6 m61 in1989/901.3 m49 in
- 1990s1990/911.5 m58 in1991/921.5 m60 in1992/931.8 m70 in1993/941.4 m55 in1994/951.6 m63 in1995/961.2 m48 in1996/971.9 m74 in1997/981.6 m63 in1998/991.2 m48 in1999/002.2 m85 in
- 2000s2000/011.2 m48 in2001/021.2 m47 in2002/0385 cm33 in2003/041.2 m45 in2004/051.6 m63 in2005/061.2 m46 in2006/071.6 m63 in2007/081.7 m67 in2008/091.1 m44 in2009/101.2 m47 in
- 2010s2010/1173 cm29 in2011/121.6 m64 in2012/131.4 m55 in2013/141.5 m61 in2014/151.7 m68 in2015/161.9 m75 in2016/171.6 m61 in2017/181.4 m56 in2018/191.3 m52 in2019/202.0 m77 in
- 2020s2020/211.5 m59 in2021/221.3 m52 in2022/231.6 m61 in2023/241.5 m57 in2024/251.4 m53 in2025/261.3 m52 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