76 winters, day by day
Appi Kogen Ski Resort, Japan. Every ski winter from 1950/51 to 2025/26.
Appi 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 19% of 736 resorts
+1.6°C+2.8°F
The trend: from -7°C20°F to -5°C23°F. Point at a winter to read it.
Snowfall at the summit
−12%
The trend: from 2.6 m102 in to 2.3 m90 in. Point at a winter to read it.
Powder days at the summit
±0 days
The trend: from 3 to 3. Point at a winter to read it.
Days with a base at the summit
−16 days
The trend: from 135 to 120. Point at a winter to read it.
Days with a base in the village
−19 days
The trend: from 121 to 103. 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
2.6 m101 in
Now
2.4 m93 in
- Snowfall in the village−9%
Then
2.6 m101 in
Now
2.4 m93 in
- Powder days at the summit±0 days
Then
3
Now
3
- Days with a base at the summit−9 days
Then
132
Now
122
- Days with a base in the village−11 days
Then
117
Now
106
- Average temperature at the summit+0.9°C+1.5°F
Then
-6°C21°F
Now
-6°C22°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
- 1950s1950/512.6 m102 in1951/522.5 m99 in1952/532.1 m81 in1953/542.1 m81 in1954/552.8 m111 in1955/562.7 m107 in1956/572.9 m113 in1957/582.7 m107 in1958/592.4 m93 in1959/602.9 m114 in
- 1960s1960/612.5 m98 in1961/622.6 m101 in1962/632.7 m106 in1963/642.4 m96 in1964/652.5 m100 in1965/663.2 m124 in1966/672.1 m83 in1967/682.4 m95 in1968/692.4 m94 in1969/702.7 m107 in
- 1970s1970/712.3 m91 in1971/722.9 m114 in1972/732.6 m104 in1973/743.3 m128 in1974/752.9 m112 in1975/761.9 m75 in1976/772.5 m100 in1977/782.8 m111 in1978/792.3 m92 in1979/802.4 m96 in
- 1980s1980/812.4 m96 in1981/822.5 m97 in1982/832.6 m101 in1983/843.0 m119 in1984/852.2 m87 in1985/862.3 m89 in1986/872.6 m103 in1987/882.0 m78 in1988/892.5 m100 in1989/901.8 m70 in
- 1990s1990/912.2 m88 in1991/922.2 m87 in1992/932.4 m96 in1993/942.2 m86 in1994/952.2 m85 in1995/962.6 m104 in1996/972.0 m78 in1997/981.8 m72 in1998/992.6 m103 in1999/002.7 m106 in
- 2000s2000/012.1 m83 in2001/022.8 m110 in2002/032.6 m102 in2003/042.1 m83 in2004/052.2 m88 in2005/062.4 m94 in2006/072.3 m92 in2007/081.7 m68 in2008/092.7 m106 in2009/102.6 m104 in
- 2010s2010/112.9 m113 in2011/122.3 m90 in2012/132.1 m84 in2013/143.3 m131 in2014/152.4 m95 in2015/161.9 m74 in2016/172.4 m93 in2017/183.1 m121 in2018/192.2 m88 in2019/202.5 m96 in
- 2020s2020/211.8 m70 in2021/222.3 m90 in2022/231.8 m70 in2023/242.5 m99 in2024/252.2 m88 in2025/262.2 m86 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