76 winters, day by day
Aspen Mountain, United States. Every ski winter from 1950/51 to 2025/26.
Aspen Mountain, 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 30% of 736 resorts
+1.8°C+3.3°F
The trend: from -10°C14°F to -8°C17°F. Point at a winter to read it.
Snowfall at the summit
−11%
The trend: from 3.0 m118 in to 2.7 m105 in. Point at a winter to read it.
Powder days at the summit
−1 day
The trend: from 3 to 2. Point at a winter to read it.
Days with a base at the summit
−7 days
The trend: from 156 to 149. Point at a winter to read it.
Days with a base in the village
−11 days
The trend: from 154 to 144. 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−7%
Then
2.9 m114 in
Now
2.7 m105 in
- Snowfall in the village−14%
Then
2.1 m84 in
Now
1.8 m73 in
- Powder days at the summit−1 day
Then
3
Now
2
- Days with a base at the summit−2 days
Then
153
Now
150
- Days with a base in the village−5 days
Then
151
Now
146
- Average temperature at the summit+1.2°C+2.1°F
Then
-10°C14°F
Now
-9°C16°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 m127 in1951/523.9 m155 in1952/532.8 m110 in1953/542.4 m93 in1954/552.4 m94 in1955/563.4 m132 in1956/573.7 m147 in1957/583.2 m124 in1958/592.9 m114 in1959/602.6 m102 in
- 1960s1960/612.5 m98 in1961/623.2 m126 in1962/632.3 m89 in1963/642.6 m102 in1964/653.7 m144 in1965/662.0 m79 in1966/672.8 m111 in1967/682.9 m114 in1968/692.8 m110 in1969/702.8 m110 in
- 1970s1970/712.8 m109 in1971/722.4 m96 in1972/732.7 m106 in1973/743.1 m123 in1974/753.2 m127 in1975/762.7 m106 in1976/771.6 m65 in1977/783.4 m132 in1978/793.2 m124 in1979/803.6 m143 in
- 1980s1980/811.7 m67 in1981/823.4 m135 in1982/833.0 m119 in1983/844.5 m176 in1984/853.3 m130 in1985/863.5 m136 in1986/872.5 m98 in1987/882.6 m103 in1988/893.2 m125 in1989/902.7 m108 in
- 1990s1990/912.8 m111 in1991/922.3 m90 in1992/933.4 m133 in1993/942.5 m99 in1994/953.2 m126 in1995/963.3 m129 in1996/973.3 m129 in1997/982.7 m105 in1998/992.6 m103 in1999/002.4 m94 in
- 2000s2000/012.3 m90 in2001/021.9 m73 in2002/032.5 m98 in2003/042.9 m114 in2004/052.8 m111 in2005/062.9 m113 in2006/072.2 m88 in2007/083.2 m127 in2008/093.3 m130 in2009/102.6 m104 in
- 2010s2010/113.5 m137 in2011/121.7 m68 in2012/132.4 m93 in2013/143.2 m125 in2014/152.4 m95 in2015/162.9 m116 in2016/173.3 m130 in2017/182.4 m95 in2018/193.3 m129 in2019/202.4 m95 in
- 2020s2020/212.2 m88 in2021/222.7 m107 in2022/233.3 m131 in2023/242.8 m112 in2024/252.3 m91 in2025/261.9 m73 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