76 winters, day by day
White World Oze Iwakura, Japan. Every ski winter from 1950/51 to 2025/26.
White World Oze Iwakura, 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 13% of 736 resorts
+1.5°C+2.6°F
The trend: from -4°C25°F to -2°C28°F. Point at a winter to read it.
Snowfall at the summit
−2%
The trend: from 2.1 m83 in to 2.1 m81 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 a base in the village
−10 days
The trend: from 112 to 102. 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+1%
Then
2.1 m82 in
Now
2.1 m82 in
- Snowfall in the village±0
Then
1.5 m58 in
Now
1.5 m58 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
- Days with a base in the village−4 days
Then
108
Now
104
- Average temperature at the summit+0.8°C+1.5°F
Then
-4°C26°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
- 1950s1950/512.2 m86 in1951/522.5 m98 in1952/532.2 m86 in1953/541.7 m69 in1954/552.3 m92 in1955/562.9 m113 in1956/572.3 m91 in1957/581.8 m70 in1958/591.6 m64 in1959/601.5 m59 in
- 1960s1960/611.8 m70 in1961/621.9 m75 in1962/631.7 m65 in1963/642.3 m90 in1964/652.0 m79 in1965/662.2 m88 in1966/671.9 m75 in1967/681.9 m76 in1968/692.3 m90 in1969/701.9 m75 in
- 1970s1970/712.2 m85 in1971/722.1 m82 in1972/732.1 m81 in1973/742.3 m92 in1974/752.5 m98 in1975/761.7 m67 in1976/772.0 m79 in1977/782.6 m101 in1978/791.9 m74 in1979/802.0 m78 in
- 1980s1980/812.2 m88 in1981/821.9 m75 in1982/831.9 m74 in1983/842.5 m98 in1984/852.2 m86 in1985/862.4 m94 in1986/872.1 m81 in1987/882.1 m81 in1988/892.1 m82 in1989/901.6 m64 in
- 1990s1990/912.0 m80 in1991/922.0 m80 in1992/932.1 m82 in1993/942.1 m82 in1994/952.2 m85 in1995/962.4 m95 in1996/971.6 m65 in1997/982.3 m91 in1998/991.9 m75 in1999/002.0 m78 in
- 2000s2000/012.5 m100 in2001/021.9 m74 in2002/032.9 m112 in2003/041.7 m69 in2004/052.6 m102 in2005/062.6 m101 in2006/071.6 m61 in2007/081.9 m76 in2008/092.1 m82 in2009/102.5 m97 in
- 2010s2010/112.1 m83 in2011/122.3 m91 in2012/132.4 m95 in2013/142.9 m115 in2014/152.6 m100 in2015/161.7 m67 in2016/172.3 m91 in2017/181.7 m65 in2018/191.9 m74 in2019/202.1 m84 in
- 2020s2020/211.3 m51 in2021/222.2 m85 in2022/231.4 m56 in2023/242.0 m78 in2024/252.2 m87 in2025/261.5 m57 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