76 winters, day by day
Banff Sunshine, Canada. Every ski winter from 1950/51 to 2025/26.
Banff Sunshine, Canada. 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 10% of 736 resorts
+1.3°C+2.4°F
The trend: from -15°C4°F to -14°C7°F. Point at a winter to read it.
Snowfall at the summit
−17%
The trend: from 2.4 m94 in to 2.0 m78 in. Point at a winter to read it.
Powder days at the summit
±0 days
The trend: from 2 to 2. Point at a winter to read it.
Days with a base at the summit
−2 days
The trend: from 168 to 166. Point at a winter to read it.
Days with fresh snow at the summit
−8 days
The trend: from 67 to 59. 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−13%
Then
2.4 m95 in
Now
2.1 m82 in
- Powder days at the summit±0 days
Then
2
Now
2
- Days with a base at the summit−3 days
Then
169
Now
166
- Average temperature at the summit+0.9°C+1.6°F
Then
-15°C5°F
Now
-14°C6°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
- 1950s1950/512.3 m90 in1951/521.6 m63 in1952/532.7 m106 in1953/543.7 m146 in1954/552.2 m86 in1955/562.6 m101 in1956/572.1 m84 in1957/582.3 m90 in1958/592.5 m100 in1959/602.1 m81 in
- 1960s1960/612.5 m97 in1961/622.0 m80 in1962/632.3 m89 in1963/642.6 m104 in1964/652.5 m98 in1965/662.6 m102 in1966/673.3 m130 in1967/682.5 m97 in1968/692.3 m91 in1969/702.0 m77 in
- 1970s1970/713.2 m125 in1971/723.3 m130 in1972/732.4 m93 in1973/742.9 m114 in1974/752.2 m86 in1975/762.5 m99 in1976/771.5 m60 in1977/781.9 m76 in1978/791.9 m76 in1979/802.0 m78 in
- 1980s1980/812.1 m83 in1981/822.3 m89 in1982/832.0 m77 in1983/841.7 m67 in1984/851.6 m64 in1985/861.4 m55 in1986/871.7 m66 in1987/882.0 m79 in1988/891.8 m72 in1989/902.4 m93 in
- 1990s1990/912.5 m99 in1991/921.6 m63 in1992/931.5 m60 in1993/942.1 m83 in1994/951.9 m75 in1995/962.6 m102 in1996/972.3 m90 in1997/981.5 m57 in1998/992.6 m102 in1999/002.2 m85 in
- 2000s2000/011.3 m51 in2001/022.2 m88 in2002/032.0 m78 in2003/041.6 m63 in2004/051.6 m64 in2005/061.8 m71 in2006/072.4 m94 in2007/081.9 m74 in2008/091.9 m73 in2009/101.6 m63 in
- 2010s2010/112.4 m94 in2011/122.7 m107 in2012/132.3 m92 in2013/142.5 m98 in2014/152.0 m78 in2015/161.8 m70 in2016/172.3 m92 in2017/182.5 m97 in2018/191.7 m68 in2019/202.3 m92 in
- 2020s2020/212.1 m81 in2021/222.6 m103 in2022/231.8 m71 in2023/242.2 m86 in2024/251.8 m71 in2025/263.1 m123 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