SnowOdds

Odds, not forecasts.

How 76 winters of weather become one number: your odds of fresh snow.

Painting of a snowy alpine valley
winters of daily weather
76
ski resorts worldwide
736
days of weather, summit and village
20,113,628
of snow on the summits, added up
157 km98 mi
That’s 18 Mount Everests

How it works

Points measured
1,472
The village and the top lift, each at its own altitude.
Winter days per point
13,664
Snow, temperature, cloud and wind since 1950/51, from Copernicus ERA5.
Split into weeks
Mon–Sun
Every week of every winter, on its own.
The odds
80%
16 of the last 20 winters brought 10 cm4 in+ that week

76 winters, 20 for the odds

A typical resort is +2.1°C+3.8°F warmer than in 1950/51. Older, colder winters would make the odds too rosy, so the odds count only the last 20. The history pages show all 76.

The odds: 2006/07–2025/26
One stripe per winter, averaged over every resort: blue colder than usual, red warmer.

Typical warming +2.1°C+3.8°F100% of resorts have warmed

Only on SnowOdds

Beyond the odds

Our own measures, on every resort page.

Bluebird days

A clear day with no new snow, right after 10 cm4 in or more fell in the two days before.

Most: China Peak Mountain Resort, 10.2 a winter

Wind holds

Days with gusts of 70 km/h43 mph or more at the summit: enough to stop most chairlifts.

Calmest: Tufandag Mountain, 0.2 a winter

Dry powder

Snow that fell on days that stayed below -5°C23°F at the summit: light and dry. The rest is heavier.

Driest: Zermatt, 99%

Icy mornings

Mornings after a day above 0°C32°F and a night at -3°C27°F or colder, with no new snow: hard, icy pistes until the sun softens them.

Least icy: Kayseri-Erciyes, 0.8 a winter

The SnowOdds score

Every week at every resort gets a score out of 100. Snow sets it, and bad weather can take up to 45% off. The percentages show how much each part counts within snow or weather.

Snow

  • Fresh snow

    60%

  • Base

    25%

  • Powder

    15%

Weather

  • Sun

    50%

  • No rain

    30%

  • Calm

    20%

Example: Chamonix, 1–7 Feb

Out of 10WeightPoints
Fresh snow8.8× 60%53
Base10× 25%25
Powder8.9× 15%13
Snow91 / 100
Sun5.8× 50%29
No rain3× 30%9
Calm6× 20%12
Weather50 / 100

Weather at 50 out of 100 takes 23% off the snow points. The worse the weather, the more comes off, up to 45%.

Score91 − 23% = 70/ 100

Records

The extremes across all 736 resorts since 1950/51.

Most snow in a day
104 cm41 in
Centro de Ski Chapa Verde · 4 July 1984
Snowiest winter
18.0 m709 in
Alyeska Resort · 1976/77
Coldest night at the summit
-58°C-73°F
Moose Mountain Ski Resort · 29 December 1961
Strongest gust at the summit
181 km/h113 mph
Aussois · 27 February 1990
Powder days counted
334,622
Bluebird days in 20 winters
29,236

Live

Forecast

The last 7 days and the next 7 from Open-Meteo, refreshed every hour.

Webcams

180 resorts, shown only while the camera is actually working.

What it can’t tell you

History, not a forecast

A great week on paper can still turn out dry.

A 25 km grid

Big storms show up; valley-by-valley effects and wind loading don’t.

Weather, not pistes

No snowmaking, grooming or lifts. Compare weeks; don’t count centimetres.

Find your week