76 winters, day by day
Tomamu Ski Resort, Japan. Every ski winter from 1950/51 to 2025/26.
Tomamu 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 46% of 736 resorts
+2.1°C+3.7°F
The trend: from -10°C13°F to -8°C17°F. Point at a winter to read it.
Snowfall at the summit
−5%
The trend: from 2.8 m111 in to 2.7 m105 in. Point at a winter to read it.
Powder days at the summit
−1 day
The trend: from 4 to 4. Point at a winter to read it.
Days with a base at the summit
−12 days
The trend: from 142 to 130. Point at a winter to read it.
Days with fresh snow at the summit
−3 days
The trend: from 71 to 68. 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−5%
Then
2.8 m112 in
Now
2.7 m107 in
- Snowfall in the village−5%
Then
2.9 m112 in
Now
2.7 m107 in
- Powder days at the summit±0 days
Then
4
Now
4
- Days with a base at the summit−5 days
Then
139
Now
134
- Average temperature at the summit+1.1°C+2.0°F
Then
-10°C14°F
Now
-9°C16°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
- 1950s1950/512.9 m112 in1951/522.0 m77 in1952/532.6 m104 in1953/542.7 m108 in1954/552.8 m112 in1955/563.0 m117 in1956/572.5 m98 in1957/583.3 m131 in1958/592.5 m98 in1959/602.9 m114 in
- 1960s1960/612.5 m98 in1961/622.0 m80 in1962/632.3 m92 in1963/642.1 m81 in1964/653.4 m135 in1965/664.1 m161 in1966/672.0 m78 in1967/682.2 m86 in1968/692.5 m97 in1969/704.1 m163 in
- 1970s1970/712.8 m110 in1971/723.6 m141 in1972/733.7 m146 in1973/742.6 m101 in1974/753.5 m137 in1975/762.5 m99 in1976/773.2 m126 in1977/782.9 m115 in1978/793.3 m131 in1979/803.0 m117 in
- 1980s1980/812.6 m102 in1981/823.3 m130 in1982/832.0 m79 in1983/842.1 m83 in1984/852.4 m94 in1985/862.6 m104 in1986/873.3 m131 in1987/882.6 m101 in1988/892.5 m98 in1989/902.1 m81 in
- 1990s1990/912.2 m88 in1991/922.0 m77 in1992/932.6 m102 in1993/943.3 m129 in1994/952.5 m98 in1995/962.8 m110 in1996/972.6 m103 in1997/981.8 m71 in1998/992.8 m109 in1999/003.3 m131 in
- 2000s2000/013.3 m129 in2001/022.3 m91 in2002/032.8 m111 in2003/043.1 m121 in2004/053.3 m130 in2005/063.2 m125 in2006/072.7 m107 in2007/081.8 m69 in2008/093.4 m133 in2009/103.3 m129 in
- 2010s2010/112.2 m86 in2011/122.5 m99 in2012/133.9 m152 in2013/142.5 m99 in2014/152.9 m112 in2015/162.6 m104 in2016/172.8 m111 in2017/183.1 m124 in2018/192.1 m83 in2019/202.5 m100 in
- 2020s2020/212.9 m112 in2021/222.2 m86 in2022/232.3 m91 in2023/242.2 m87 in2024/252.4 m95 in2025/262.6 m104 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