SnowOdds

76 winters, day by day

Ski Geilo, Norway. Every ski winter from 1950/51 to 2025/26.

Painting of Ski Geilo
Average winter
2.8 m109 in
Snowiest winter
4.6 m180 in
Leanest winter
1.3 m52 in
Powder days a winter
3

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 93% of 736 resorts

+3.1°C+5.6°F

The trend: from -10°C14°F to -7°C19°F. Point at a winter to read it.

-14°7°-12°10°-10°14°-8°18°-6°21°

Snowfall at the summit

+25%

The trend: from 2.5 m97 in to 3.1 m121 in. Point at a winter to read it.

1.0 m39 in2.0 m79 in3.0 m118 in4.0 m157 in

Powder days at the summit

+2 days

The trend: from 2 to 4. Point at a winter to read it.

0246810

Days with a base at the summit

−15 days

The trend: from 173 to 158. Point at a winter to read it.

100120140160180

Days with fresh snow at the summit

+9 days

The trend: from 66 to 74. Point at a winter to read it.

406080100

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+15%

Then

2.5 m100 in

Now

2.9 m115 in

Snowfall in the village+5%

Then

2.0 m79 in

Now

2.1 m84 in

Powder days at the summit+1 day

Then

2

Now

3

Days with a base at the summit−8 days

Then

170

Now

161

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

Then

-9°C15°F

Now

-8°C18°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
32 cm13 in
Snowiest winter
4.6 m180 in
Leanest winter
1.3 m52 in
Deepest snow on the ground
166 cm65 in
Coldest night at the summit
-40°C-40°F
Strongest gust at the summit
127 km/h79 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