76 winters, day by day
Lost Trail, United States. Every ski winter from 1950/51 to 2025/26.
Lost Trail, 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.
Loading the daily snowfall…
Climate change
Average winter temperature at the summit
Faster warming than 8% of 736 resorts
+1.2°C+2.2°F
The trend: from -10°C15°F to -9°C17°F. Point at a winter to read it.
Snowfall at the summit
−18%
The trend: from 2.7 m104 in to 2.2 m86 in. Point at a winter to read it.
Powder days at the summit
−1 day
The trend: from 2 to 1. Point at a winter to read it.
Days with a base at the summit
−6 days
The trend: from 153 to 147. Point at a winter to read it.
Days with fresh snow at the summit
−9 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−12%
Then
2.6 m103 in
Now
2.3 m91 in
- Snowfall in the village−15%
Then
2.4 m93 in
Now
2.0 m79 in
- Powder days at the summit±0 days
Then
2
Now
1
- Days with a base at the summit−2 days
Then
150
Now
148
- Average temperature at the summit+0.7°C+1.3°F
Then
-9°C15°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
- 1950s1950/512.7 m106 in1951/522.5 m99 in1952/532.9 m113 in1953/543.0 m117 in1954/552.3 m92 in1955/563.0 m119 in1956/572.5 m97 in1957/582.4 m94 in1958/592.8 m111 in1959/602.3 m89 in
- 1960s1960/612.6 m102 in1961/622.3 m89 in1962/632.5 m97 in1963/642.9 m113 in1964/653.2 m125 in1965/661.8 m70 in1966/673.2 m124 in1967/682.5 m98 in1968/692.5 m97 in1969/702.6 m104 in
- 1970s1970/713.1 m123 in1971/723.4 m134 in1972/731.9 m74 in1973/743.1 m123 in1974/753.1 m122 in1975/763.2 m128 in1976/771.3 m52 in1977/782.6 m100 in1978/792.3 m91 in1979/802.3 m92 in
- 1980s1980/811.7 m67 in1981/823.1 m123 in1982/832.3 m92 in1983/842.5 m96 in1984/852.0 m77 in1985/862.3 m91 in1986/871.9 m74 in1987/882.2 m85 in1988/892.4 m95 in1989/902.0 m77 in
- 1990s1990/912.2 m86 in1991/921.7 m67 in1992/932.4 m96 in1993/941.7 m65 in1994/952.1 m83 in1995/963.3 m129 in1996/973.6 m140 in1997/981.9 m76 in1998/993.0 m119 in1999/002.1 m83 in
- 2000s2000/011.3 m52 in2001/021.9 m76 in2002/032.5 m99 in2003/041.8 m69 in2004/051.5 m59 in2005/062.5 m97 in2006/072.1 m82 in2007/082.6 m104 in2008/092.7 m107 in2009/101.7 m65 in
- 2010s2010/113.0 m119 in2011/122.5 m97 in2012/132.1 m81 in2013/142.9 m113 in2014/152.0 m79 in2015/162.3 m92 in2016/172.7 m106 in2017/183.0 m118 in2018/192.4 m96 in2019/202.1 m81 in
- 2020s2020/212.1 m83 in2021/222.2 m85 in2022/232.3 m89 in2023/241.7 m68 in2024/252.3 m90 in2025/262.5 m97 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