Big Sky 1月の天気
Big Skyの1月:極寒、ときどき雨、空気がきれい — 氷点下をかなり下回る寒さが気にならなければ悪くない時期。
2026年9月更新 · ERA5再解析による気候平年値
Big Skyでは12か月中2位 · 1月に訪れたい旅行先で1413か所中125位 · 快適スコア90/100(Sランク)
- 日中
- -2°C
- 夜
- -10°C
- 雨の日
- 12
- 日照
- 6.5 h
- 湿度
- 78%
- 日の長さ
- 9 h

1月のBig Skyについての旅行者の声
Asked to choose January or March at Big Sky, the forum picks January, and the reason is reliability rather than depth: March in Montana is unpredictable, mid-January much less so. Crowds barely enter into it - regulars say they are never really an issue here, that March runs a little busier than January, and that the longest lift wait is usually under five minutes, though some long-timers note the place is busier than it once was. The counter-example they keep is a January with almost no new snow, when heavy grooming left it icy in the mornings. The record: -1.8C days that feel like -6C, -10.5C nights, 45.2cm of snow, 11.8 precipitation days and 6.5 hours of sun.
Big Skyのほかの月
Big Sky-forum threads on an April visit describe closing as genuinely landing around the tenth or eleventh of the month, posters naming this timing as often falling near Easter. Regulars call steady late-season snowfall genuinely still standard, several posters naming warmer, longer days alongside notably thinner crowds as real advantages of visiting this late. Posters call the resort genuinely feeling local by April, several regulars naming this a real contrast to the busier winter peak. Regulars call spring corn snow genuinely some of the best value and conditions of the entire season, several threads naming this a real reason not to overlook April. Posters recommend Closing Weekend specifically if timing allows, several regulars calling this a real notable on-mountain event worth planning a trip around. The record: 6.6C days, -3.3C nights, 79.9mm across nearly 15 days and 72 percent humidity.
Big Sky-forum threads on a late May visit describe this as shoulder season, posters using it as a base for Yellowstone while asking whether local businesses would be open given the timing. Regulars call biking, horseback riding and rafting on the Gallatin River all real May options once conditions allow, several posters recommending these over anything snow-dependent this late in spring. Posters recommend checking the Big Sky and Bozeman Chamber event calendars directly, several regulars calling this the best way to confirm what's actually running during shoulder weeks. Regulars call lodging genuinely varied this time of year, ski-in options and condo complexes both mentioned as available even outside peak season. Posters recommend real flexibility around exact May plans, some businesses here still on reduced or seasonal schedules this early. The record: 11.8C days feeling like 10C, 1.2C nights, an extraordinarily high 93.8mm across over 16 days and 61 percent humidity.
Big Sky-forum threads on a July visit describe this as genuinely peak season, posters recommending the chairlift or gondola up the mountain for anyone wanting the views without a full hike. Regulars call Beehive Basin the standout hike close to town, Ousel Falls named the easier first outing for anyone easing into the altitude. Posters recommend a ranch experience or horseback outing as a genuine change of pace from the trail-heavy itinerary most visitors default to. Regulars call late July the calendar's busiest stretch, Music in the Meadows, the farmers market and the PBR Rodeo all real draws worth timing a trip around. Posters recommend real bear spray for hikes further from town like Upper Beehive, wildlife encounters here a genuine possibility. Regulars call the daytime warmth genuinely comfortable, evenings still cool enough for a real layer once the sun drops. The record: 25.7C days feeling like 25C, 12C nights, 38.4mm across over 10 days and 53 percent humidity.
Big Sky-forum threads on March skiing are consistently enthusiastic, posters calling snow conditions rarely a problem this time of year and early March frequently named among the best stretches of the entire season. Regulars describe peak snowpack as typically landing around the first week of March, conditions often surpassing January simply because more has accumulated by then. Posters call the freeze-thaw cycle that defines classic spring skiing as not yet fully underway in March, a real advantage over April. Regulars recommend early-to-mid March as the more dependable target, temperatures generally sitting comfortably in the twenties and thirties Fahrenheit. Posters describe days as noticeably longer and milder than deep winter without sacrificing snow quality. Regulars recommend checking conditions before an April trip. The record: 3.1C days feeling like -1C, -6.3C nights, a notably high 47.1cm of fresh accumulation and 74 percent humidity.
地図のBig Skyのカードから自分のメモを追加できます。
Big Skyの気候平年値 — 1月
ERA5再解析による月平均値です。AQIはその月の平均US AQI(米国大気質指数)です。
1月のBig Skyの混雑
その場所自体の混み具合 — 学校休暇や大型連休、編集部がタグ付けした月、そして天気の良さによる人気の高さ。快適スコアには含まれません。
ピークの混雑Christmas to New Year ski peak、アメリカ合衆国のWinter / Christmas break、主な訪問国のうち2か国で学校休暇(推定)
ピークの混雑混雑ショルダーシーズン閑散
Big Skyの天気が良い月
この旅行先自身の一年間の快適スコアでランキングしています — 混み具合とは別のものです(上の「混雑」を参照)。
天気が最高Big Skyの天気がピークを迎えるのは12月〜2月です。
天気が最高天気はまずまず天気が厳しい
1月のBig Skyのイベント
毎年の季節のイベント、自然の見どころ、休業、祝日 — 厳選し出典を明記しています。
- 季節
Ski season
11月25日〜4月25日 · 例年早めの予約をLifts usually turn from the week of American Thanksgiving to late April, with the Lone Peak tram the reason people come. February and the holiday weeks are the expensive ones; early December is the same mountain for half the money.
- 祝日
Christmas to New Year ski peak
12月20日〜1月3日 · 例年クリスマス・年末年始混雑早めの予約をThe week from Christmas to New Year is the busiest of the ski season: lodging and lift-ticket prices reach their highs, ski school and rentals book out and lift lines are longest. Book months ahead, and early-season snow cover varies year to year. 出典 ↗
- 季節
Snow season
スキーシーズンAbout 45 cm of snow falls in the month.
気候の平年値から算出
近くで開催中のイベント
Big Skyから300 km以内 — 日帰りやちょっとした移動で行けて、今月何かがある場所です。快適スコアには含まれません。
Big Skyはどこにある?
1月のBig Sky — よくある質問
- 1月はBig Skyを訪れるのに良い時期ですか?
- Big Skyの1月:極寒、ときどき雨、空気がきれい — 氷点下をかなり下回る寒さが気にならなければ悪くない時期。SeasonMapの快適スコアでは、Big Skyの12か月中2位です(90/100)。
- 1月のBig Skyはどんな天気ですか?
- 1月のBig Skyは、平均最高気温-1.8°C、最低気温-10.5°C、降水量は約42.2 mmで、雨の日はおよそ11.8日です。
- 1月のBig Skyの大気質はどうですか?
- 1月のBig Skyの米国大気質指数(US AQI)は、平均約40です。
- 1月のBig Skyは雪が降りますか?
- 1月のBig Skyの降雪量は、およそ45.2 cmです。
300 km圏内:Yellowstone National ParkのWinter wolves in the Lamar(12月20日〜3月10日ごろ)、Grand Teton National ParkのElk on the National Elk Refuge(12月1日〜3月31日ごろ)。