76 winters, day by day
Willamette Pass, United States. Every ski winter from 1950/51 to 2025/26.
Willamette Pass, 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 10% of 736 resorts
+1.3°C+2.3°F
The trend: from -4°C24°F to -3°C27°F. Point at a winter to read it.
Snowfall at the summit
−27%
The trend: from 4.8 m189 in to 3.5 m139 in. Point at a winter to read it.
Powder days at the summit
−6 days
The trend: from 14 to 8. Point at a winter to read it.
Days with a base at the summit
−22 days
The trend: from 152 to 130. Point at a winter to read it.
Days with fresh snow at the summit
−10 days
The trend: from 77 to 68. 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
4.6 m181 in
Now
4.0 m157 in
- Snowfall in the village−16%
Then
3.2 m124 in
Now
2.7 m105 in
- Powder days at the summit−3 days
Then
13
Now
10
- Days with a base at the summit−10 days
Then
145
Now
135
- Average temperature at the summit+0.8°C+1.4°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
- 1950s1950/515.8 m227 in1951/526.8 m267 in1952/535.3 m210 in1953/545.8 m230 in1954/554.6 m182 in1955/566.5 m255 in1956/573.6 m140 in1957/584.9 m193 in1958/593.6 m141 in1959/604.4 m171 in
- 1960s1960/614.6 m179 in1961/624.2 m165 in1962/633.1 m123 in1963/645.2 m203 in1964/654.6 m179 in1965/664.5 m177 in1966/674.9 m194 in1967/682.9 m113 in1968/695.1 m200 in1969/704.1 m160 in
- 1970s1970/715.8 m228 in1971/726.4 m254 in1972/733.1 m120 in1973/746.7 m264 in1974/755.5 m218 in1975/764.6 m180 in1976/771.8 m69 in1977/783.1 m123 in1978/793.4 m132 in1979/803.4 m133 in
- 1980s1980/812.3 m91 in1981/825.4 m213 in1982/834.8 m189 in1983/844.6 m180 in1984/854.3 m171 in1985/863.7 m145 in1986/873.2 m126 in1987/883.5 m139 in1988/894.8 m190 in1989/902.8 m110 in
- 1990s1990/912.8 m112 in1991/921.7 m65 in1992/934.3 m167 in1993/942.8 m111 in1994/954.5 m177 in1995/964.0 m159 in1996/974.3 m170 in1997/983.4 m135 in1998/996.3 m248 in1999/004.4 m171 in
- 2000s2000/012.5 m96 in2001/024.5 m176 in2002/033.7 m144 in2003/044.6 m182 in2004/052.6 m101 in2005/065.4 m213 in2006/074.1 m162 in2007/085.2 m205 in2008/094.3 m169 in2009/103.4 m134 in
- 2010s2010/115.4 m213 in2011/124.8 m188 in2012/133.4 m133 in2013/143.0 m119 in2014/151.8 m70 in2015/164.6 m181 in2016/175.0 m196 in2017/183.0 m120 in2018/193.7 m147 in2019/203.4 m134 in
- 2020s2020/213.9 m153 in2021/223.5 m139 in2022/234.5 m176 in2023/244.0 m157 in2024/255.1 m202 in2025/261.6 m63 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