76 winters, day by day
Marunuma Kogen Ski Resort, Japan. Every ski winter from 1950/51 to 2025/26.
Marunuma Kogen Ski Resort, 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.
Loading the daily snowfall…
Climate change
Average winter temperature at the summit
Faster warming than 14% of 736 resorts
+1.5°C+2.7°F
The trend: from -6°C21°F to -5°C24°F. Point at a winter to read it.
Snowfall at the summit
−3%
The trend: from 2.2 m85 in to 2.1 m83 in. Point at a winter to read it.
Powder days at the summit
±0 days
The trend: from 2 to 1. Point at a winter to read it.
Days with a base at the summit
−10 days
The trend: from 120 to 110. Point at a winter to read it.
Days with fresh snow at the summit
−2 days
The trend: from 66 to 64. 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±0
Then
2.1 m84 in
Now
2.1 m84 in
- Snowfall in the village+3%
Then
1.8 m70 in
Now
1.8 m72 in
- Powder days at the summit±0 days
Then
2
Now
2
- Days with a base at the summit−4 days
Then
116
Now
112
- Average temperature at the summit+0.8°C+1.5°F
Then
-6°C22°F
Now
-5°C23°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
- 1950s1950/512.2 m88 in1951/522.6 m100 in1952/532.2 m88 in1953/541.8 m71 in1954/552.4 m96 in1955/562.9 m115 in1956/572.3 m92 in1957/581.8 m72 in1958/591.7 m67 in1959/601.6 m62 in
- 1960s1960/611.8 m71 in1961/622.0 m77 in1962/631.7 m68 in1963/642.3 m91 in1964/652.1 m82 in1965/662.3 m91 in1966/672.0 m77 in1967/682.0 m78 in1968/692.4 m94 in1969/702.0 m80 in
- 1970s1970/712.2 m87 in1971/722.2 m85 in1972/732.2 m85 in1973/742.4 m93 in1974/752.5 m99 in1975/761.7 m69 in1976/772.1 m81 in1977/782.6 m101 in1978/791.9 m75 in1979/802.1 m81 in
- 1980s1980/812.3 m89 in1981/821.9 m76 in1982/831.9 m76 in1983/842.5 m99 in1984/852.2 m87 in1985/862.4 m94 in1986/872.1 m83 in1987/882.1 m82 in1988/892.2 m85 in1989/901.7 m65 in
- 1990s1990/912.1 m81 in1991/922.1 m82 in1992/932.1 m83 in1993/942.1 m83 in1994/952.2 m86 in1995/962.4 m96 in1996/971.7 m67 in1997/982.3 m92 in1998/992.0 m77 in1999/002.0 m80 in
- 2000s2000/012.6 m102 in2001/021.9 m76 in2002/032.9 m113 in2003/041.8 m70 in2004/052.6 m104 in2005/062.6 m102 in2006/071.6 m62 in2007/082.0 m77 in2008/092.1 m84 in2009/102.5 m100 in
- 2010s2010/112.2 m85 in2011/122.4 m93 in2012/132.5 m97 in2013/143.0 m116 in2014/152.6 m102 in2015/161.7 m67 in2016/172.4 m93 in2017/181.7 m67 in2018/191.9 m75 in2019/202.2 m88 in
- 2020s2020/211.4 m56 in2021/222.2 m86 in2022/231.5 m57 in2023/242.1 m82 in2024/252.3 m89 in2025/261.5 m59 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