76 winters, day by day
Windham Mountain Club, United States. Every ski winter from 1950/51 to 2025/26.
Windham Mountain Club, 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 38% of 736 resorts
+2.0°C+3.5°F
The trend: from -5°C24°F to -3°C27°F. Point at a winter to read it.
Snowfall at the summit
−25%
The trend: from 1.8 m70 in to 1.3 m52 in. Point at a winter to read it.
Powder days at the summit
−1 day
The trend: from 4 to 3. Point at a winter to read it.
Days with a base at the summit
−37 days
The trend: from 61 to 24. Point at a winter to read it.
Days with fresh snow at the summit
−9 days
The trend: from 34 to 25. 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−16%
Then
1.7 m68 in
Now
1.4 m57 in
- Snowfall in the village−19%
Then
1.3 m51 in
Now
1.0 m41 in
- Powder days at the summit±0 days
Then
4
Now
3
- Days with a base at the summit−29 days
Then
59
Now
30
- Average temperature at the summit+1.3°C+2.4°F
Then
-4°C24°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
- 1950s1950/511.7 m66 in1951/522.0 m78 in1952/531.5 m59 in1953/541.1 m43 in1954/551.7 m65 in1955/562.3 m90 in1956/571.7 m68 in1957/582.5 m96 in1958/591.4 m54 in1959/601.8 m69 in
- 1960s1960/612.0 m78 in1961/621.6 m64 in1962/631.9 m74 in1963/641.5 m57 in1964/651.5 m58 in1965/661.4 m57 in1966/671.9 m75 in1967/681.4 m55 in1968/691.6 m63 in1969/702.2 m87 in
- 1970s1970/712.3 m89 in1971/722.3 m89 in1972/731.7 m69 in1973/741.7 m65 in1974/751.6 m61 in1975/761.4 m56 in1976/771.7 m65 in1977/782.1 m84 in1978/791.7 m66 in1979/8083 cm33 in
- 1980s1980/8189 cm35 in1981/821.6 m62 in1982/831.6 m64 in1983/841.7 m68 in1984/851.1 m44 in1985/861.4 m57 in1986/871.9 m73 in1987/881.4 m56 in1988/8975 cm30 in1989/901.3 m52 in
- 1990s1990/9192 cm36 in1991/9268 cm27 in1992/932.4 m94 in1993/942.1 m82 in1994/9586 cm34 in1995/961.9 m76 in1996/972.0 m80 in1997/981.7 m68 in1998/991.1 m44 in1999/001.2 m47 in
- 2000s2000/011.9 m75 in2001/0285 cm33 in2002/032.2 m85 in2003/041.4 m55 in2004/051.5 m59 in2005/061.0 m41 in2006/071.6 m62 in2007/081.5 m61 in2008/091.2 m48 in2009/102.0 m80 in
- 2010s2010/111.8 m72 in2011/1287 cm34 in2012/131.4 m54 in2013/141.6 m63 in2014/151.6 m64 in2015/1635 cm14 in2016/171.7 m66 in2017/181.5 m61 in2018/191.7 m66 in2019/201.5 m58 in
- 2020s2020/211.3 m49 in2021/221.2 m49 in2022/231.7 m66 in2023/241.3 m53 in2024/251.2 m48 in2025/261.2 m49 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