76 winters, day by day
Granby Ranch, United States. Every ski winter from 1950/51 to 2025/26.
Granby Ranch, 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 22% of 736 resorts
+1.7°C+3.0°F
The trend: from -8°C18°F to -6°C21°F. Point at a winter to read it.
Snowfall at the summit
−7%
The trend: from 2.0 m80 in to 1.9 m74 in. Point at a winter to read it.
Powder days at the summit
±0 days
The trend: from 1 to 1. Point at a winter to read it.
Days with a base at the summit
−12 days
The trend: from 130 to 118. Point at a winter to read it.
Days with fresh snow at the summit
−5 days
The trend: from 61 to 55. 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−6%
Then
2.0 m77 in
Now
1.9 m73 in
- Snowfall in the village−7%
Then
1.7 m67 in
Now
1.6 m62 in
- Powder days at the summit±0 days
Then
1
Now
1
- Days with a base at the summit−6 days
Then
124
Now
118
- Average temperature at the summit+1.1°C+1.9°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
- 1950s1950/512.4 m93 in1951/522.7 m106 in1952/531.9 m75 in1953/541.5 m58 in1954/551.6 m65 in1955/562.2 m86 in1956/572.4 m96 in1957/582.0 m80 in1958/592.3 m89 in1959/601.8 m71 in
- 1960s1960/611.9 m75 in1961/622.1 m83 in1962/631.6 m62 in1963/641.6 m65 in1964/652.2 m85 in1965/661.2 m47 in1966/671.7 m67 in1967/681.8 m69 in1968/691.5 m59 in1969/701.9 m74 in
- 1970s1970/712.1 m81 in1971/721.8 m71 in1972/732.1 m81 in1973/742.5 m98 in1974/752.1 m82 in1975/761.7 m69 in1976/771.4 m55 in1977/782.2 m87 in1978/792.2 m86 in1979/802.6 m102 in
- 1980s1980/811.2 m48 in1981/822.1 m81 in1982/832.3 m89 in1983/843.2 m126 in1984/851.9 m76 in1985/862.3 m92 in1986/871.7 m67 in1987/882.1 m81 in1988/892.5 m99 in1989/902.0 m78 in
- 1990s1990/912.1 m81 in1991/921.8 m70 in1992/932.4 m94 in1993/941.7 m66 in1994/952.0 m78 in1995/962.2 m85 in1996/972.3 m91 in1997/981.5 m59 in1998/991.9 m74 in1999/001.7 m69 in
- 2000s2000/011.5 m59 in2001/021.2 m48 in2002/032.1 m81 in2003/041.6 m63 in2004/051.8 m69 in2005/061.9 m76 in2006/071.8 m70 in2007/082.1 m83 in2008/092.2 m86 in2009/101.8 m72 in
- 2010s2010/112.2 m88 in2011/121.3 m50 in2012/131.6 m64 in2013/142.3 m90 in2014/151.7 m65 in2015/162.3 m91 in2016/172.1 m83 in2017/181.8 m69 in2018/192.2 m85 in2019/201.9 m74 in
- 2020s2020/211.8 m70 in2021/221.9 m74 in2022/232.2 m85 in2023/242.0 m78 in2024/251.9 m73 in2025/261.2 m46 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