76 winters, day by day
Aspen Snowmass, United States. Every ski winter from 1950/51 to 2025/26.
Aspen Snowmass, 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 35% of 736 resorts
+1.9°C+3.5°F
The trend: from -13°C9°F to -11°C12°F. Point at a winter to read it.
Snowfall at the summit
−13%
The trend: from 3.1 m122 in to 2.7 m106 in. Point at a winter to read it.
Powder days at the summit
−2 days
The trend: from 4 to 2. Point at a winter to read it.
Days with a base at the summit
−8 days
The trend: from 158 to 151. Point at a winter to read it.
Days with a base in the village
−10 days
The trend: from 155 to 145. 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
3.0 m117 in
Now
2.7 m107 in
- Snowfall in the village−14%
Then
2.5 m98 in
Now
2.2 m85 in
- Powder days at the summit−1 day
Then
4
Now
2
- Days with a base at the summit−2 days
Then
154
Now
152
- Days with a base in the village−4 days
Then
151
Now
147
- Average temperature at the summit+1.2°C+2.2°F
Then
-13°C9°F
Now
-11°C11°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
- 1950s1950/513.2 m125 in1951/524.1 m163 in1952/532.9 m113 in1953/542.4 m94 in1954/552.5 m100 in1955/563.4 m134 in1956/573.8 m149 in1957/583.3 m128 in1958/593.0 m117 in1959/602.7 m105 in
- 1960s1960/612.6 m102 in1961/623.3 m129 in1962/632.2 m88 in1963/642.7 m106 in1964/653.8 m148 in1965/662.1 m83 in1966/673.0 m117 in1967/683.1 m123 in1968/693.0 m119 in1969/702.8 m110 in
- 1970s1970/712.8 m108 in1971/722.5 m96 in1972/732.8 m111 in1973/743.2 m127 in1974/753.4 m132 in1975/762.7 m107 in1976/771.7 m65 in1977/783.5 m138 in1978/793.4 m133 in1979/803.8 m151 in
- 1980s1980/811.8 m71 in1981/823.5 m138 in1982/833.2 m127 in1983/844.6 m181 in1984/853.5 m138 in1985/863.6 m141 in1986/872.5 m98 in1987/882.7 m107 in1988/893.2 m128 in1989/902.6 m101 in
- 1990s1990/913.0 m116 in1991/922.3 m90 in1992/933.6 m143 in1993/942.6 m101 in1994/953.3 m131 in1995/963.3 m129 in1996/973.3 m131 in1997/982.8 m109 in1998/992.7 m104 in1999/002.4 m95 in
- 2000s2000/012.3 m92 in2001/021.9 m76 in2002/032.6 m102 in2003/043.0 m119 in2004/052.9 m114 in2005/062.9 m115 in2006/072.2 m87 in2007/083.3 m129 in2008/093.4 m133 in2009/102.8 m109 in
- 2010s2010/113.6 m142 in2011/121.8 m71 in2012/132.4 m94 in2013/143.2 m125 in2014/152.4 m93 in2015/163.0 m116 in2016/173.3 m131 in2017/182.3 m92 in2018/193.3 m128 in2019/202.4 m95 in
- 2020s2020/212.2 m85 in2021/222.8 m109 in2022/233.6 m141 in2023/242.9 m112 in2024/252.3 m90 in2025/261.9 m75 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