Troll Resort, 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.
Loading the daily snowfall…
Climate change
Average winter temperature at the summit
Faster warming than 37% of 736 resorts
+1.9°C+3.5°F
The trend: from -9°C17°F to -7°C20°F. Point at a winter to read it.
Snowfall at the summit
−11%
The trend: from 2.2 m87 in to 2.0 m78 in. Point at a winter to read it.
Powder days at the summit
±0 days
The trend: from 1 to 1. Point at a winter to read it.
Days with a base at the summit
−4 days
The trend: from 157 to 153. Point at a winter to read it.
Days with fresh snow at the summit
−9 days
The trend: from 63 to 54. 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
2.3 m89 in
Now
2.1 m81 in
- Snowfall in the village−16%
Then
1.7 m69 in
Now
1.5 m58 in
- Powder days at the summit±0 days
Then
2
Now
1
- Days with a base at the summit−5 days
Then
157
Now
152
- Average temperature at the summit+1.3°C+2.4°F
Then
-8°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
- 1950s1950/511.9 m74 in1951/522.2 m87 in1952/532.1 m84 in1953/542.5 m100 in1954/552.1 m84 in1955/562.2 m88 in1956/572.0 m79 in1957/582.3 m89 in1958/592.1 m83 in1959/601.9 m76 in
- 1960s1960/612.0 m78 in1961/622.3 m91 in1962/632.2 m85 in1963/642.8 m111 in1964/652.8 m111 in1965/662.6 m102 in1966/672.9 m116 in1967/682.6 m102 in1968/692.2 m85 in1969/701.9 m76 in
- 1970s1970/712.7 m107 in1971/723.0 m118 in1972/731.9 m76 in1973/742.6 m104 in1974/752.1 m82 in1975/762.8 m109 in1976/771.9 m75 in1977/781.3 m53 in1978/791.9 m75 in1979/801.6 m64 in
- 1980s1980/811.6 m62 in1981/822.3 m91 in1982/831.2 m46 in1983/841.5 m58 in1984/852.2 m85 in1985/861.4 m55 in1986/871.7 m66 in1987/881.8 m71 in1988/891.7 m69 in1989/902.3 m89 in
- 1990s1990/912.6 m103 in1991/922.1 m81 in1992/931.6 m62 in1993/942.4 m93 in1994/951.8 m70 in1995/961.8 m72 in1996/972.6 m104 in1997/981.4 m57 in1998/992.7 m107 in1999/001.8 m72 in
- 2000s2000/011.4 m56 in2001/022.0 m77 in2002/031.4 m55 in2003/041.8 m72 in2004/051.7 m66 in2005/061.5 m59 in2006/072.4 m96 in2007/082.1 m81 in2008/092.4 m93 in2009/101.4 m57 in
- 2010s2010/112.4 m93 in2011/122.2 m87 in2012/132.6 m100 in2013/142.9 m115 in2014/152.0 m80 in2015/161.8 m71 in2016/171.7 m67 in2017/182.2 m87 in2018/192.0 m78 in2019/202.6 m103 in
- 2020s2020/212.2 m85 in2021/222.5 m99 in2022/232.3 m89 in2023/241.5 m59 in2024/251.9 m74 in2025/262.2 m87 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