76 winters, day by day
Bromley Mountain Ski Resort;Bromley Mountain, United States. Every ski winter from 1950/51 to 2025/26.
Bromley Mountain Ski Resort;Bromley 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 32% of 736 resorts
+1.9°C+3.4°F
The trend: from -7°C20°F to -5°C24°F. Point at a winter to read it.
Snowfall at the summit
−17%
The trend: from 2.0 m77 in to 1.6 m64 in. Point at a winter to read it.
Powder days at the summit
±0 days
The trend: from 4 to 4. Point at a winter to read it.
Days with a base at the summit
−52 days
The trend: from 90 to 38. Point at a winter to read it.
Days with fresh snow at the summit
−7 days
The trend: from 40 to 34. 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−11%
Then
1.9 m76 in
Now
1.7 m68 in
- Snowfall in the village−11%
Then
1.9 m76 in
Now
1.7 m68 in
- Powder days at the summit±0 days
Then
4
Now
4
- Days with a base at the summit−34 days
Then
87
Now
53
- Average temperature at the summit+1.3°C+2.3°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
- 1950s1950/512.0 m80 in1951/522.3 m89 in1952/531.8 m72 in1953/541.5 m58 in1954/551.7 m67 in1955/562.5 m100 in1956/571.7 m65 in1957/582.7 m107 in1958/591.7 m69 in1959/602.1 m82 in
- 1960s1960/611.7 m67 in1961/621.8 m71 in1962/632.2 m85 in1963/641.6 m64 in1964/651.4 m56 in1965/661.7 m65 in1966/671.9 m74 in1967/681.6 m62 in1968/692.5 m100 in1969/702.1 m82 in
- 1970s1970/712.4 m93 in1971/722.5 m99 in1972/732.0 m80 in1973/741.6 m64 in1974/752.2 m88 in1975/761.9 m76 in1976/772.0 m78 in1977/782.0 m80 in1978/792.0 m80 in1979/8084 cm33 in
- 1980s1980/811.5 m57 in1981/822.0 m77 in1982/831.4 m54 in1983/842.1 m81 in1984/851.6 m61 in1985/861.6 m63 in1986/872.0 m79 in1987/881.5 m57 in1988/891.2 m46 in1989/901.4 m54 in
- 1990s1990/911.1 m44 in1991/921.1 m43 in1992/932.4 m93 in1993/942.0 m80 in1994/951.1 m45 in1995/962.0 m80 in1996/972.4 m96 in1997/981.9 m75 in1998/991.5 m57 in1999/001.4 m54 in
- 2000s2000/012.2 m88 in2001/021.4 m55 in2002/032.4 m96 in2003/041.7 m68 in2004/051.5 m59 in2005/061.2 m47 in2006/072.0 m78 in2007/082.1 m83 in2008/091.7 m67 in2009/101.8 m70 in
- 2010s2010/112.0 m79 in2011/121.1 m42 in2012/131.4 m56 in2013/141.8 m70 in2014/152.1 m81 in2015/1657 cm22 in2016/171.9 m76 in2017/181.8 m71 in2018/192.1 m81 in2019/201.9 m76 in
- 2020s2020/211.5 m59 in2021/221.5 m60 in2022/232.0 m78 in2023/242.0 m79 in2024/251.6 m64 in2025/261.4 m56 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