76 winters, day by day
Shirakaba Kogen Kokusai Ski, Japan. Every ski winter from 1950/51 to 2025/26.
Shirakaba Kogen Kokusai Ski, Japan. 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 84% of 736 resorts
+2.8°C+5.0°F
The trend: from -5°C23°F to -2°C28°F. Point at a winter to read it.
Snowfall at the summit
−10%
The trend: from 1.2 m49 in to 1.1 m44 in. Point at a winter to read it.
Powder days at the summit
±0 days
The trend: from 2 to 2. Point at a winter to read it.
Days with a base at the summit
−22 days
The trend: from 42 to 20. Point at a winter to read it.
Days with fresh snow at the summit
−4 days
The trend: from 31 to 27. 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−3%
Then
1.2 m47 in
Now
1.2 m45 in
- Snowfall in the village−3%
Then
1.2 m47 in
Now
1.2 m46 in
- Powder days at the summit±0 days
Then
2
Now
2
- Days with a base at the summit−9 days
Then
34
Now
25
- Average temperature at the summit+1.7°C+3.0°F
Then
-5°C24°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
- 1950s1950/511.3 m50 in1951/521.8 m71 in1952/5394 cm37 in1953/541.0 m41 in1954/551.5 m57 in1955/561.9 m75 in1956/5798 cm39 in1957/581.1 m43 in1958/591.1 m44 in1959/6079 cm31 in
- 1960s1960/6189 cm35 in1961/6275 cm30 in1962/631.2 m46 in1963/641.3 m53 in1964/6599 cm39 in1965/661.2 m48 in1966/671.2 m46 in1967/681.2 m46 in1968/691.8 m70 in1969/701.0 m41 in
- 1970s1970/7181 cm32 in1971/721.7 m65 in1972/731.2 m45 in1973/741.4 m55 in1974/751.2 m48 in1975/7692 cm36 in1976/771.2 m48 in1977/781.2 m48 in1978/7997 cm38 in1979/801.2 m46 in
- 1980s1980/811.3 m53 in1981/8279 cm31 in1982/831.1 m44 in1983/841.4 m55 in1984/851.4 m56 in1985/861.3 m50 in1986/871.2 m45 in1987/881.4 m56 in1988/8998 cm39 in1989/901.1 m45 in
- 1990s1990/911.2 m47 in1991/921.4 m56 in1992/931.1 m44 in1993/941.2 m49 in1994/951.2 m46 in1995/961.3 m50 in1996/9781 cm32 in1997/981.8 m72 in1998/9999 cm39 in1999/0091 cm36 in
- 2000s2000/011.5 m58 in2001/021.1 m42 in2002/032.2 m85 in2003/0491 cm36 in2004/051.3 m52 in2005/061.0 m39 in2006/0771 cm28 in2007/081.3 m51 in2008/091.1 m45 in2009/101.6 m63 in
- 2010s2010/1198 cm39 in2011/121.1 m44 in2012/131.5 m59 in2013/141.8 m72 in2014/151.6 m63 in2015/1695 cm37 in2016/171.1 m43 in2017/1894 cm37 in2018/1986 cm34 in2019/201.1 m43 in
- 2020s2020/2172 cm28 in2021/221.1 m43 in2022/2366 cm26 in2023/241.2 m48 in2024/251.1 m44 in2025/2660 cm24 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