SnowOdds

76 winters, day by day

Ośrodek Narciarski Kotelnica Białczańska, Poland. Every ski winter from 1950/51 to 2025/26.

Ośrodek Narciarski Kotelnica Białczańska
Painting of Ośrodek Narciarski Kotelnica Białczańska
Average winter
1.7 m65 in
Snowiest winter
2.7 m107 in
1966/67
Leanest winter
68 cm27 in
2013/14
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 90% of 736 resorts

+3.0°C+5.4°F

The trend: from -4°C25°F to -1°C31°F. Point at a winter to read it.

-6°21°-4°25°-2°28°0°32°

Snowfall at the summit

−17%

The trend: from 1.8 m71 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

−55 days

The trend: from 88 to 33. Point at a winter to read it.

050100150

Days with fresh snow at the summit

−8 days

The trend: from 49 to 41. Point at a winter to read it.

2030405060

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−10%

Then

1.7 m68 in

Now

1.6 m62 in

Snowfall in the village−8%

Then

1.9 m73 in

Now

1.7 m67 in

Powder days at the summit±0 days

Then

1

Now

1

Days with a base at the summit−34 days

Then

77

Now

44

Average temperature at the summit+1.8°C+3.2°F

Then

-3°C26°F

Now

-1°C30°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
22 cm9 in
11 November 1979
Snowiest winter
2.7 m107 in
1966/67
Leanest winter
68 cm27 in
2013/14
Deepest snow on the ground
109 cm43 in
29 March 1952
Coldest night at the summit
-30°C-21°F
8 January 1985
Strongest gust at the summit
119 km/h74 mph
19 January 2007

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