76 winters, day by day
ARAI SNOW RESORT, Japan. Every ski winter from 1950/51 to 2025/26.
ARAI 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 15% of 736 resorts
+1.5°C+2.7°F
The trend: from -3°C26°F to -2°C29°F. Point at a winter to read it.
Snowfall at the summit
−5%
The trend: from 4.0 m156 in to 3.7 m147 in. Point at a winter to read it.
Powder days at the summit
±0 days
The trend: from 7 to 7. Point at a winter to read it.
Days with a base at the summit
−8 days
The trend: from 145 to 137. Point at a winter to read it.
Days with a base in the village
−13 days
The trend: from 123 to 110. 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−2%
Then
3.9 m153 in
Now
3.8 m150 in
- Snowfall in the village−7%
Then
2.8 m111 in
Now
2.6 m103 in
- Powder days at the summit+1 day
Then
7
Now
8
- Days with a base at the summit−4 days
Then
142
Now
138
- Days with a base in the village−7 days
Then
119
Now
112
- Average temperature at the summit+0.9°C+1.6°F
Then
-3°C27°F
Now
-2°C28°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
- 1950s1950/514.2 m165 in1951/525.0 m197 in1952/534.7 m186 in1953/543.3 m129 in1954/554.5 m176 in1955/564.6 m183 in1956/575.0 m198 in1957/582.8 m111 in1958/592.1 m84 in1959/603.8 m150 in
- 1960s1960/613.6 m142 in1961/623.5 m137 in1962/633.2 m127 in1963/643.6 m143 in1964/654.0 m158 in1965/664.3 m170 in1966/674.2 m165 in1967/683.8 m148 in1968/693.5 m139 in1969/704.0 m157 in
- 1970s1970/714.1 m161 in1971/723.2 m127 in1972/733.3 m128 in1973/744.9 m192 in1974/754.4 m174 in1975/763.5 m138 in1976/774.1 m161 in1977/784.4 m172 in1978/792.6 m102 in1979/804.0 m157 in
- 1980s1980/814.5 m177 in1981/824.0 m159 in1982/834.0 m156 in1983/845.3 m210 in1984/853.7 m145 in1985/864.4 m175 in1986/873.9 m154 in1987/883.6 m141 in1988/892.8 m111 in1989/902.7 m105 in
- 1990s1990/913.8 m150 in1991/923.2 m126 in1992/933.6 m141 in1993/943.8 m151 in1994/953.9 m152 in1995/964.8 m188 in1996/973.2 m126 in1997/983.5 m136 in1998/993.9 m153 in1999/004.1 m161 in
- 2000s2000/015.0 m196 in2001/023.4 m135 in2002/034.3 m167 in2003/043.1 m122 in2004/054.6 m183 in2005/065.1 m200 in2006/072.2 m88 in2007/083.8 m148 in2008/093.3 m130 in2009/103.8 m151 in
- 2010s2010/114.0 m157 in2011/124.9 m193 in2012/134.4 m172 in2013/144.5 m178 in2014/154.5 m178 in2015/162.8 m109 in2016/174.1 m162 in2017/183.7 m144 in2018/194.1 m159 in2019/202.7 m105 in
- 2020s2020/213.3 m129 in2021/224.0 m158 in2022/233.1 m123 in2023/243.6 m141 in2024/254.3 m169 in2025/263.3 m130 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