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Nagano & Hakuba ski resorts with the most powder days

How many days a season, on average, each resort in Nagano & Hakuba gets 15 cm+ of snow in a day (JAPOW). 21 seasons from 2005-06 to 2025-26, from JMA AMeDAS observations.

Average JAPOW days 14 stations · 74 resorts

JAPOW (15 cm+) daysDEEP POW (50 cm+)

Open a row for all 21 seasons · resorts sharing a station are one row

#Resort / avg JAPOW days
1Sakae Club30.2 daysDEEP POW 2.6AMeDAS Tsunan 452m
2Nozawa OnsenRyuoo Ski Park, X-JAM Takaifuji, Yomase Onsen, The Kijima Snow Park, Kitashiga Komaruyama22.5 daysDEEP POW 1.7AMeDAS Nozawa Onsen 576m
3Romance no Kamisama (Kijimadaira)Togari Onsen18.0 daysDEEP POW 1.0AMeDAS Iiyama 313m
4Tsugaike KogenHakuba Cortina, Hakuba Norikura17.8 daysDEEP POW 0.7AMeDAS Otari 550m
5Madarao KogenTogakushi, Kurohime Kogen Snow Park, Tangram Ski Circus, Iizuna Resort13.7 daysDEEP POW 0.1AMeDAS Shinano-Machi 685m
6Hakuba Happo-OneHakuba 47 / Goryu, Hakuba Iwatake, Hakuba Sanosaka11.0 daysDEEP POW 0.1AMeDAS Hakuba 703m
7Sugadaira KogenYunomaru, REWILD NINJA SNOW HIGHLAND8.4 daysDEEP POW 0.1AMeDAS Sugadaira 1253m
8Shiga Kogen Sun ValleyShiga Kogen Maruike, Shiga Kogen Hasuike, Shiga Kogen Giant, Shiga Kogen Higashitateyama, Shiga Kogen Hoppo Bunadaira, Shiga Kogen Nishitateyama, Shiga Kogen Terakoya, Shiga Kogen Takamagahara Mammoth, Shiga Kogen Tanne no Mori Okojo, Shiga Kogen Ichinose Family, Shiga Kogen Ichinose Diamond, Shiga Kogen Ichinose Yamanokami, Shiga Kogen Yakebitaiyama, Shiga Kogen Kumanoyu, Shiga Kogen Yokoteyama-Shibutoge, Okushiga Kogen, YAMABOKU Wild Snow Park7.3 daysDEEP POW 0.1AMeDAS Kusatsu 1223m
9KashimayariJiigatake, Hijiri Kogen4.7 daysDEEP POW 0.0AMeDAS Omachi 784m
10Ontake Ski AreaMt. Norikura, Kiso Fukushima, Yabuhara Kogen, Nomugi Toge3.7 daysDEEP POW 0.0AMeDAS Kaida Highlands 1130m
11Karuizawa Prince Hotel Ski ResortTakamine Mountain Park, Saku Parada1.8 daysDEEP POW 0.120 seasons · AMeDAS Karuizawa 999.1m
12Asahi PrimeTakeshi Banshogahara0.8 daysDEEP POW 0.020 seasons · AMeDAS Matsumoto 610m
13Pilatus TateshinaShirakaba Kogen Kokusai, Shirakabako Royal Hill, Kurumayama Kogen SKYPARK, Blanche Takayama, Fujimi Panorama, Chateraise Ski Valley Koumi, Yachiho Kogen, Shirakaba 2in1, Chateraise Ski Valley Nobeyama, Fujimi Kogen, Shirakaba Resort Ikenotaira Snow Park, Chuodo Ina, Tateshina Tokyu, Kirigamine0.7 daysDEEP POW 0.0AMeDAS Suwa 760.1m
14Jibuzaka KogenHeavens Sonohara, Komagane Kogen, Hiraya Kogen0.6 daysDEEP POW 0.020 seasons · AMeDAS Iida 516.4m

How to read these numbers

  • Days with JMA AMeDAS daily snowfall (0:00–24:00) of 15 cm+ count as JAPOW, 50 cm+ as DEEP POW (DEEP POW days are included in JAPOW; values over 200 cm are excluded as errors).
  • A season is November to April; 21 seasons from 2005-06 to 2025-26. Averages use only seasons with data; stations with fewer than 15 seasons are left out of the average ranking. One season can be lucky or unlucky; a 20-year average shows where it reliably snows.
  • The station is the AMeDAS chosen for each resort by distance and elevation difference — the same one behind "24h snow" on the top page and resort pages. Resorts sharing a station have the same numbers, so they share one row.
  • Values JMA flags as incomplete (some hourly data missing) are counted as published. Seasons with no snow observation, or with a station move or instrument change (the red lines in JMA's tables), are shown as no data (hatched in the charts). Nothing is estimated.
  • Most stations are near the base, so the upper mountain often gets more. Numbers are shown even for years when a resort was not operating.

Source: compiled by Japow Now! from JMA "Past weather data" (AMeDAS daily values). Please link to this page when quoting.