76 winters, day by day
Joetsu International, Japan. Every ski winter from 1950/51 to 2025/26.
Joetsu International, 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 21% of 736 resorts
+1.6°C+2.9°F
The trend: from -3°C27°F to -1°C29°F. Point at a winter to read it.
Snowfall at the summit
−2%
The trend: from 4.7 m185 in to 4.6 m181 in. Point at a winter to read it.
Powder days at the summit
+1 day
The trend: from 8 to 10. Point at a winter to read it.
Days with a base at the summit
−13 days
The trend: from 131 to 118. Point at a winter to read it.
Days with fresh snow at the summit
−7 days
The trend: from 91 to 84. 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
4.6 m182 in
Now
4.7 m183 in
- Snowfall in the village−5%
Then
2.8 m111 in
Now
2.7 m106 in
- Powder days at the summit+2 days
Then
8
Now
10
- Days with a base at the summit−7 days
Then
126
Now
120
- Average temperature at the summit+1.0°C+1.8°F
Then
-3°C27°F
Now
-2°C29°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
- 1950s1950/514.8 m190 in1951/525.7 m225 in1952/535.3 m207 in1953/544.2 m165 in1954/555.3 m208 in1955/565.7 m225 in1956/575.8 m228 in1957/583.7 m144 in1958/593.0 m119 in1959/604.2 m167 in
- 1960s1960/614.1 m159 in1961/624.4 m173 in1962/634.0 m157 in1963/644.5 m178 in1964/655.3 m208 in1965/665.3 m209 in1966/674.6 m181 in1967/684.7 m183 in1968/694.1 m161 in1969/704.4 m174 in
- 1970s1970/714.9 m193 in1971/724.1 m161 in1972/734.1 m163 in1973/745.6 m219 in1974/755.4 m211 in1975/764.1 m160 in1976/774.4 m173 in1977/785.3 m209 in1978/793.6 m140 in1979/804.6 m181 in
- 1980s1980/815.3 m207 in1981/824.8 m189 in1982/834.4 m173 in1983/845.8 m230 in1984/854.2 m165 in1985/865.2 m203 in1986/874.9 m194 in1987/884.2 m167 in1988/894.1 m163 in1989/903.6 m142 in
- 1990s1990/914.5 m178 in1991/923.9 m155 in1992/934.7 m185 in1993/944.7 m185 in1994/954.9 m191 in1995/965.9 m232 in1996/974.0 m157 in1997/984.1 m161 in1998/994.5 m179 in1999/005.2 m204 in
- 2000s2000/015.6 m221 in2001/024.4 m173 in2002/035.4 m213 in2003/043.9 m154 in2004/055.5 m216 in2005/066.2 m242 in2006/073.2 m127 in2007/084.7 m183 in2008/094.1 m162 in2009/104.4 m173 in
- 2010s2010/114.7 m184 in2011/125.5 m217 in2012/135.3 m207 in2013/145.5 m217 in2014/155.6 m219 in2015/163.4 m133 in2016/175.5 m217 in2017/184.0 m156 in2018/194.9 m194 in2019/204.0 m157 in
- 2020s2020/213.7 m146 in2021/224.7 m187 in2022/233.9 m154 in2023/244.4 m175 in2024/255.3 m207 in2025/264.1 m160 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