76 winters, day by day
Buttermilk, United States. Every ski winter from 1950/51 to 2025/26.
Buttermilk, United States. 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.
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Climate change
Average winter temperature at the summit
Faster warming than 32% of 736 resorts
+1.9°C+3.4°F
The trend: from -9°C16°F to -7°C20°F. Point at a winter to read it.
Snowfall at the summit
−13%
The trend: from 2.9 m113 in to 2.5 m98 in. Point at a winter to read it.
Powder days at the summit
−1 day
The trend: from 3 to 2. Point at a winter to read it.
Days with a base at the summit
−10 days
The trend: from 155 to 145. Point at a winter to read it.
Days with fresh snow at the summit
−8 days
The trend: from 73 to 64. 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−9%
Then
2.8 m109 in
Now
2.5 m99 in
- Snowfall in the village−14%
Then
2.1 m84 in
Now
1.8 m73 in
- Powder days at the summit−1 day
Then
3
Now
2
- Days with a base at the summit−4 days
Then
151
Now
147
- Average temperature at the summit+1.2°C+2.2°F
Then
-9°C17°F
Now
-7°C19°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
- 1950s1950/513.0 m119 in1951/523.8 m148 in1952/532.7 m105 in1953/542.2 m85 in1954/552.3 m92 in1955/563.2 m125 in1956/573.5 m139 in1957/583.0 m119 in1958/592.8 m111 in1959/602.5 m99 in
- 1960s1960/612.4 m94 in1961/623.1 m122 in1962/632.1 m83 in1963/642.5 m97 in1964/653.5 m139 in1965/661.9 m74 in1966/672.7 m104 in1967/682.8 m109 in1968/692.7 m104 in1969/702.7 m107 in
- 1970s1970/712.6 m104 in1971/722.3 m89 in1972/732.6 m102 in1973/743.0 m119 in1974/753.2 m126 in1975/762.5 m100 in1976/771.5 m60 in1977/783.2 m125 in1978/793.1 m120 in1979/803.5 m136 in
- 1980s1980/811.6 m64 in1981/823.3 m128 in1982/832.8 m111 in1983/844.3 m169 in1984/853.1 m122 in1985/863.3 m129 in1986/872.4 m93 in1987/882.5 m97 in1988/892.9 m113 in1989/902.3 m92 in
- 1990s1990/912.7 m105 in1991/922.1 m83 in1992/933.2 m126 in1993/942.3 m92 in1994/953.1 m120 in1995/963.1 m121 in1996/973.1 m120 in1997/982.6 m101 in1998/992.4 m95 in1999/002.2 m88 in
- 2000s2000/012.1 m84 in2001/021.8 m70 in2002/032.4 m94 in2003/042.6 m101 in2004/052.6 m104 in2005/062.7 m107 in2006/072.0 m78 in2007/083.2 m125 in2008/093.2 m125 in2009/102.6 m101 in
- 2010s2010/113.3 m130 in2011/121.7 m65 in2012/132.3 m89 in2013/143.1 m122 in2014/152.2 m87 in2015/162.7 m107 in2016/173.1 m123 in2017/182.0 m80 in2018/193.1 m120 in2019/202.3 m91 in
- 2020s2020/212.1 m81 in2021/222.6 m102 in2022/233.3 m128 in2023/242.6 m104 in2024/252.3 m90 in2025/261.6 m64 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