76 winters, day by day
Grandeco Snow Resort, Japan. Every ski winter from 1950/51 to 2025/26.
Grandeco Snow 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 17% of 736 resorts
+1.5°C+2.8°F
The trend: from -6°C22°F to -4°C25°F. Point at a winter to read it.
Snowfall at the summit
−10%
The trend: from 2.1 m84 in to 1.9 m76 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
−18 days
The trend: from 125 to 107. Point at a winter to read it.
Days with fresh snow at the summit
−8 days
The trend: from 63 to 55. 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−6%
Then
2.1 m83 in
Now
2.0 m78 in
- Snowfall in the village−5%
Then
1.9 m75 in
Now
1.8 m71 in
- Powder days at the summit±0 days
Then
2
Now
2
- Days with a base at the summit−10 days
Then
121
Now
111
- Average temperature at the summit+0.9°C+1.6°F
Then
-5°C23°F
Now
-4°C24°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
- 1950s1950/512.1 m82 in1951/522.3 m90 in1952/532.1 m84 in1953/541.5 m60 in1954/552.1 m81 in1955/563.3 m130 in1956/572.6 m101 in1957/581.7 m67 in1958/591.3 m52 in1959/601.7 m67 in
- 1960s1960/612.3 m89 in1961/622.2 m87 in1962/631.7 m67 in1963/642.3 m89 in1964/652.4 m93 in1965/662.3 m89 in1966/672.0 m77 in1967/681.9 m75 in1968/692.5 m98 in1969/702.0 m80 in
- 1970s1970/711.8 m71 in1971/721.9 m73 in1972/732.0 m80 in1973/742.6 m103 in1974/752.7 m104 in1975/761.8 m70 in1976/772.3 m90 in1977/782.5 m97 in1978/791.5 m58 in1979/801.9 m74 in
- 1980s1980/812.6 m102 in1981/821.5 m59 in1982/832.2 m87 in1983/842.6 m103 in1984/852.1 m84 in1985/862.4 m96 in1986/872.0 m79 in1987/882.0 m80 in1988/891.9 m74 in1989/901.2 m45 in
- 1990s1990/911.6 m62 in1991/921.9 m74 in1992/932.3 m91 in1993/941.6 m64 in1994/951.9 m74 in1995/962.3 m91 in1996/971.6 m63 in1997/982.0 m79 in1998/991.7 m67 in1999/002.0 m77 in
- 2000s2000/012.6 m101 in2001/021.7 m68 in2002/032.2 m88 in2003/041.6 m64 in2004/052.5 m99 in2005/062.3 m91 in2006/071.3 m50 in2007/081.7 m67 in2008/091.9 m74 in2009/102.3 m91 in
- 2010s2010/112.1 m82 in2011/122.4 m96 in2012/132.1 m83 in2013/142.9 m114 in2014/152.4 m96 in2015/161.7 m65 in2016/172.1 m83 in2017/181.8 m71 in2018/191.8 m70 in2019/201.6 m64 in
- 2020s2020/211.6 m63 in2021/222.0 m78 in2022/231.6 m63 in2023/242.0 m78 in2024/252.2 m88 in2025/261.4 m56 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