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Japan Weekly Snow Roundup #293
Weekly Snow News for Japan, updated 17 December 2025: Siberian cold fuels relentless powder storms, with Hokkaido leading Japan’s mid-winter surge.
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Hidden Valley at 914 m altitude
Issued by Snow-Forecast.com at: 12 pm (local time) / 18 Dec 2025
Now
Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | Tuesday 23 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  | |  |  | |  |  | | | | | | | | | |
some clouds | light rain | light snow | light snow | light snow | snow shwrs | cloudy | some clouds | some clouds | snow shwrs | cloudy | some clouds | cloudy | cloudy | light snow | light rain | cloudy | some clouds | |
km/h | ||||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||||
— | — | 2 | 3 | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | |
— | 1 | 4 | — | — | — | — | — | — | — | — | — | — | — | 1 | 3 | — | — | |
max °C | 9 | 8 | 9 | -4 | -10 | -3 | 4 | 5 | 5 | -6 | -8 | -7 | -2 | 0 | 2 | 3 | 2 | 2 |
min °C | 9 | 8 | 1 | -10 | -10 | -10 | 1 | 4 | -2 | -6 | -10 | -11 | -5 | -1 | -1 | 3 | 2 | 0 |
5 | 3 | -7 | -23 | -23 | -22 | -4 | -3 | -11 | -16 | -20 | -22 | -11 | -4 | -9 | -4 | -5 | -7 | |
59 | 71 | 93 | 97 | 95 | 56 | 36 | 39 | 83 | 87 | 82 | 75 | 42 | 32 | 46 | 97 | 96 | 63 | |
2850 | 2800 | 2850 | 300 | 0 | 0 | 0 | 2700 | 1150 | 200 | 0 | 0 | 0 | 0 | 0 | 2200 | 1500 | 1500 | |
 | 7:33 | — | — | 7:33 | — | — | 7:33 | — | — | 7:35 | — | — | 7:35 | — | — | 7:35 | — | — |
 | — | 4:52 | — | — | 4:52 | — | — | 4:53 | — | — | 4:53 | — | — | 4:54 | — | — | 4:54 | — |
Next 0-3 days weather summary:
Mild with light rain (total 5.0mm) on Thu night Becoming colder with a light covering of snow, mostly falling on Thu night. Freeze-thaw conditions (max 9°C on Thu morning, min -10°C on Fri morning). Winds decreasing (gales from the S on Thu night, light winds from the WSW by Sat morning).
Next 4-6 days weather summary:
Light rain (total 4.0mm), mostly falling on Tue morning. Freeze-thaw conditions (max 3°C on Tue morning, min -11°C on Sun night). Winds decreasing (near gales from the WNW on Sun morning, light winds from the ENE by Mon morning).
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Snow Radar
Latest snow reports near Hidden Valley:
Hidden Valley Snow Conditions
| Top snow depth: | 38 cm |
|---|---|
| Bottom snow depth: | 38 cm |
| Fresh snowfall depth: | — |
| Last snowfall: | 14 Dec 2025 |
| Snow Alerts | Create Alert |
Other resorts in USA - Pennsylvania are reporting: powder (0) / good piste (1)
Snow History
Week 3 of December has on average:
0.2 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
0.8 | Powder days Fresh snow, limited sun, any wind. |
1.0 | Bluebird days Average snow, mostly sunny, light wind. |
Hidden Valley Forecast Snowfall
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Other resorts in USA - Pennsylvania are reporting: powder (0) / good piste (1)
The above table gives the weather forecast for Hidden Valley at the specific elevation of 914 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Hidden Valley. To access the weather forecasts for the other elevations, use the tab navigation above the table. For a wider view of the weather, check out the Weather Map of United States.
Click here to read further information on freezing levels and how we forecast our temperatures.
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