76 winters, day by day
Purgatory Resort, United States. Every ski winter from 1950/51 to 2025/26.
Purgatory 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 48% of 736 resorts
+2.1°C+3.8°F
The trend: from -8°C17°F to -6°C21°F. Point at a winter to read it.
Snowfall at the summit
−19%
The trend: from 3.1 m120 in to 2.5 m97 in. Point at a winter to read it.
Powder days at the summit
−1 day
The trend: from 7 to 6. Point at a winter to read it.
Days with a base at the summit
−25 days
The trend: from 156 to 131. Point at a winter to read it.
Days with fresh snow at the summit
−10 days
The trend: from 54 to 44. 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−15%
Then
2.9 m113 in
Now
2.5 m97 in
- Snowfall in the village−20%
Then
2.4 m93 in
Now
1.9 m74 in
- Powder days at the summit−1 day
Then
7
Now
6
- Days with a base at the summit−13 days
Then
148
Now
135
- Average temperature at the summit+1.3°C+2.4°F
Then
-8°C18°F
Now
-7°C20°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
- 1950s1950/512.7 m105 in1951/524.5 m176 in1952/532.5 m99 in1953/542.2 m88 in1954/552.2 m86 in1955/562.7 m106 in1956/573.6 m143 in1957/583.1 m124 in1958/592.1 m84 in1959/602.8 m111 in
- 1960s1960/613.0 m117 in1961/622.9 m113 in1962/632.4 m94 in1963/642.3 m89 in1964/654.3 m169 in1965/662.6 m102 in1966/672.6 m100 in1967/683.5 m138 in1968/693.1 m123 in1969/701.9 m74 in
- 1970s1970/712.2 m88 in1971/721.6 m61 in1972/733.4 m132 in1973/742.4 m93 in1974/753.6 m141 in1975/762.9 m113 in1976/771.2 m47 in1977/783.0 m118 in1978/795.0 m196 in1979/804.4 m174 in
- 1980s1980/811.8 m71 in1981/823.5 m137 in1982/833.7 m146 in1983/843.8 m148 in1984/854.1 m162 in1985/863.9 m153 in1986/873.4 m135 in1987/882.7 m106 in1988/892.8 m111 in1989/902.2 m88 in
- 1990s1990/913.1 m122 in1991/922.4 m95 in1992/933.9 m155 in1993/942.6 m102 in1994/953.7 m146 in1995/962.0 m80 in1996/973.2 m127 in1997/982.3 m91 in1998/992.4 m94 in1999/002.1 m81 in
- 2000s2000/012.5 m99 in2001/021.2 m47 in2002/032.1 m81 in2003/042.7 m107 in2004/053.8 m148 in2005/062.0 m80 in2006/071.9 m73 in2007/083.2 m126 in2008/092.8 m110 in2009/102.9 m115 in
- 2010s2010/112.6 m104 in2011/122.0 m79 in2012/131.9 m76 in2013/142.0 m78 in2014/152.3 m89 in2015/162.9 m113 in2016/173.6 m140 in2017/181.5 m57 in2018/193.7 m144 in2019/202.4 m93 in
- 2020s2020/212.1 m83 in2021/222.4 m94 in2022/233.7 m144 in2023/242.5 m99 in2024/251.7 m68 in2025/261.5 m57 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