76 winters, day by day
Attitash Mountain Resort, United States. Every ski winter from 1950/51 to 2025/26.
Attitash Mountain 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 14% of 736 resorts
+1.5°C+2.7°F
The trend: from -7°C20°F to -5°C23°F. Point at a winter to read it.
Snowfall at the summit
−14%
The trend: from 2.2 m88 in to 1.9 m76 in. Point at a winter to read it.
Powder days at the summit
−1 day
The trend: from 6 to 5. Point at a winter to read it.
Days with a base at the summit
−28 days
The trend: from 115 to 87. Point at a winter to read it.
Days with fresh snow at the summit
−4 days
The trend: from 39 to 35. 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
2.2 m88 in
Now
2.0 m80 in
- Snowfall in the village−12%
Then
1.6 m64 in
Now
1.4 m56 in
- Powder days at the summit−1 day
Then
6
Now
6
- Days with a base at the summit−19 days
Then
116
Now
97
- Average temperature at the summit+1.1°C+1.9°F
Then
-6°C21°F
Now
-5°C23°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
- 1950s1950/512.2 m85 in1951/523.1 m120 in1952/532.0 m80 in1953/542.3 m90 in1954/552.2 m85 in1955/562.3 m91 in1956/571.7 m65 in1957/583.4 m135 in1958/592.0 m78 in1959/602.3 m90 in
- 1960s1960/611.9 m76 in1961/622.3 m89 in1962/632.4 m94 in1963/641.6 m64 in1964/651.8 m70 in1965/662.0 m80 in1966/672.0 m77 in1967/681.9 m76 in1968/693.2 m127 in1969/701.8 m70 in
- 1970s1970/712.6 m102 in1971/722.6 m104 in1972/732.5 m100 in1973/741.9 m76 in1974/752.7 m105 in1975/762.4 m94 in1976/772.1 m81 in1977/782.5 m99 in1978/792.4 m93 in1979/801.1 m42 in
- 1980s1980/811.2 m48 in1981/822.4 m95 in1982/831.5 m61 in1983/842.2 m87 in1984/851.8 m70 in1985/861.9 m74 in1986/872.4 m94 in1987/881.8 m69 in1988/891.5 m58 in1989/901.7 m66 in
- 1990s1990/911.5 m61 in1991/921.4 m54 in1992/932.2 m87 in1993/942.2 m85 in1994/951.6 m63 in1995/962.6 m100 in1996/972.9 m113 in1997/982.2 m87 in1998/991.7 m67 in1999/001.5 m59 in
- 2000s2000/012.7 m105 in2001/021.7 m68 in2002/032.0 m78 in2003/041.4 m55 in2004/052.0 m77 in2005/061.3 m50 in2006/072.6 m104 in2007/082.9 m114 in2008/092.1 m81 in2009/102.6 m102 in
- 2010s2010/112.2 m85 in2011/121.4 m53 in2012/132.0 m77 in2013/142.0 m77 in2014/152.2 m87 in2015/161.1 m43 in2016/172.6 m102 in2017/182.0 m80 in2018/192.7 m106 in2019/202.4 m94 in
- 2020s2020/211.6 m63 in2021/221.8 m71 in2022/232.2 m87 in2023/242.4 m93 in2024/251.9 m73 in2025/261.5 m59 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