SnowOdds

76 winters, day by day

Orsa Grönklitt, Sweden. Every ski winter from 1950/51 to 2025/26.

Painting of Orsa Grönklitt
Average winter
1.6 m62 in
Snowiest winter
2.5 m98 in
Leanest winter
64 cm25 in
Powder days a winter
1

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…

Winter total
1950/511960/611970/711980/811990/912000/012010/112020/21
New snow in a day
1 cm0.4 in3 cm1 in7 cm3 in15 cm6 in30 cm12 in50 cm20 in

Climate change

One stripe per winter, 1950/51 to 2025/26. Blue winters were colder than this resort’s average, red ones warmer.

Average winter temperature at the summit

Faster warming than 94% of 736 resorts

+3.1°C+5.7°F

The trend: from -7°C20°F to -4°C25°F. Point at a winter to read it.

-10°14°-8°18°-6°21°-4°25°-2°28°

Snowfall at the summit

−9%

The trend: from 1.7 m65 in to 1.5 m59 in. Point at a winter to read it.

50 cm20 in1.0 m39 in1.5 m59 in2.0 m79 in2.5 m98 in

Powder days at the summit

±0 days

The trend: from 1 to 1. Point at a winter to read it.

01234

Days with a base at the summit

−53 days

The trend: from 127 to 74. Point at a winter to read it.

050100150

Days with fresh snow at the summit

−5 days

The trend: from 46 to 41. Point at a winter to read it.

204060

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−8%

Then

1.6 m64 in

Now

1.5 m59 in

Snowfall in the village−7%

Then

1.7 m66 in

Now

1.6 m61 in

Powder days at the summit±0 days

Then

1

Now

1

Days with a base at the summit−35 days

Then

118

Now

84

Average temperature at the summit+2.0°C+3.6°F

Then

-6°C21°F

Now

-4°C25°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

Most snow in a day
19 cm7 in
Snowiest winter
2.5 m98 in
Leanest winter
64 cm25 in
Deepest snow on the ground
112 cm44 in
Coldest night at the summit
-33°C-28°F
Strongest gust at the summit
105 km/h65 mph

All winters

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