76 winters, day by day
Sierra-at-Tahoe Ski Resort, United States. Every ski winter from 1950/51 to 2025/26.
Sierra-at-Tahoe Ski Resort, 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 6% of 736 resorts
+1.0°C+1.9°F
The trend: from -4°C25°F to -3°C26°F. Point at a winter to read it.
Snowfall at the summit
−5%
The trend: from 5.3 m209 in to 5.0 m198 in. Point at a winter to read it.
Powder days at the summit
−1 day
The trend: from 18 to 17. Point at a winter to read it.
Days with a base at the summit
−12 days
The trend: from 145 to 133. Point at a winter to read it.
Days with fresh snow at the summit
−2 days
The trend: from 56 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−1%
Then
5.3 m207 in
Now
5.2 m204 in
- Snowfall in the village−7%
Then
2.9 m112 in
Now
2.7 m105 in
- Powder days at the summit±0 days
Then
18
Now
18
- Days with a base at the summit−5 days
Then
142
Now
136
- Average temperature at the summit+0.6°C+1.1°F
Then
-4°C25°F
Now
-3°C26°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
- 1950s1950/514.9 m194 in1951/529.1 m356 in1952/536.0 m235 in1953/545.0 m195 in1954/554.7 m187 in1955/566.4 m251 in1956/574.1 m161 in1957/587.3 m289 in1958/593.5 m136 in1959/604.2 m165 in
- 1960s1960/613.8 m151 in1961/625.8 m226 in1962/634.3 m169 in1963/643.8 m148 in1964/656.1 m240 in1965/664.5 m178 in1966/677.9 m312 in1967/683.8 m148 in1968/698.0 m315 in1969/704.4 m172 in
- 1970s1970/716.3 m249 in1971/724.1 m163 in1972/735.4 m214 in1973/746.2 m246 in1974/756.9 m270 in1975/762.3 m90 in1976/771.8 m72 in1977/787.4 m290 in1978/794.5 m175 in1979/805.5 m216 in
- 1980s1980/813.7 m147 in1981/826.4 m252 in1982/839.4 m369 in1983/845.7 m226 in1984/854.5 m176 in1985/866.7 m265 in1986/872.9 m115 in1987/883.1 m124 in1988/894.5 m177 in1989/902.8 m109 in
- 1990s1990/913.7 m146 in1991/922.8 m111 in1992/936.8 m267 in1993/943.0 m119 in1994/957.9 m310 in1995/966.0 m236 in1996/975.5 m216 in1997/986.7 m265 in1998/996.4 m253 in1999/005.1 m202 in
- 2000s2000/013.3 m130 in2001/024.6 m181 in2002/035.2 m204 in2003/044.5 m176 in2004/055.9 m233 in2005/067.4 m289 in2006/073.5 m139 in2007/084.4 m172 in2008/094.5 m178 in2009/105.8 m226 in
- 2010s2010/118.0 m313 in2011/123.6 m141 in2012/133.4 m133 in2013/143.2 m127 in2014/152.3 m90 in2015/165.7 m226 in2016/179.2 m361 in2017/184.0 m157 in2018/197.6 m300 in2019/204.4 m172 in
- 2020s2020/213.7 m144 in2021/224.0 m159 in2022/239.4 m369 in2023/245.2 m206 in2024/255.0 m198 in2025/264.1 m163 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