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Ski resort in California, United States
Mammoth Mountain
A resort in the Sierra Nevada of California, next to the town of Mammoth Lakes, with a season that usually runs from early November through June.
Forecast updated , when it was 02:00 in Mammoth Mountain (GMT-8).
Mammoth Mountain snow forecast at 3,369 m (top lift)
Next 24 hours on the upper mountain
Heavy snow this morning.
Starting around 10am, easing by 11pm. 10–35 cm in the next 24 hours.
Likely, all three forecast models agree
Mammoth Mountain at the top lift (3,369 m / 11,100 ft) is forecast to get 10–35 cm (5–13 in) of snow in the next 24 hours and 25–65 cm (11–26 in) over the next 7 days. All three weather models we compare forecast snow in the next 24 hours. Expect temperatures from −10 to −3 °C (14 to 27 °F), the freezing level near 2,600 m (8,500 ft) and gusts up to 96 km/h (60 mph) over the next day. It should be sunny on Sunday and Tuesday.
- Temperature now
- −6 °C (21 °F)
- Freezing level
- 2,600 m (8,500 ft)
- Wind
- 9 km/h (6 mph), gusts 43 km/h (27 mph)
- Sky now
- Clear, 8% cloud
Mammoth Mountain hour by hour, on the upper mountain
Peak about 3 cm per hourShow the hours as a table
| Time | Weather | Snowfall |
|---|---|---|
| 10am | Rain or snow | Under 0.1 cm |
| 11am | Rain or snow | Under 0.1 cm |
| noon | Snow | 0.7 cm (0.3 in) |
| 1pm | Snow | 2 cm (0.9 in) |
| 2pm | Snow | 2 cm (0.9 in) |
| 3pm | Snow | 3 cm (1.1 in) |
| 4pm | Snow | 3 cm (1.1 in) |
| 5pm | Snow | 2 cm (0.8 in) |
| 6pm | Snow | 3 cm (1.1 in) |
| 7pm | Snow | 2 cm (0.6 in) |
| 8pm | Snow | 2 cm (0.7 in) |
| 9pm | Snow | 0.6 cm (0.2 in) |
| 10pm | Snow | 0.3 cm (0.1 in) |
| midnight | Snow | 0.2 cm (0.1 in) |
Hours not listed are dry. Times are local (GMT-8).
Mammoth Mountain 7-day snow forecast, on the upper mountain
Best day to ski in Mammoth Mountain this week: Tuesday. 9 cm the day before, sunny, light wind. How we grade a ski day.
| Day | Weather | Snowfall |
|---|---|---|
| Today | SnowPoor ski day−8 to −3 °C (18 to 27 °F) · gusts 96 km/h (60 mph) · freezing level 2,550 m (8,400 ft) | 10–35 cm (5–13 in) |
| Sat | Chance of snowGood ski day−12 to −1 °C (10 to 30 °F) · gusts 66 km/h (41 mph) · freezing level 2,650 m (8,700 ft) | 0–2 cm (under 1 in) |
| Sun | SunnyFair ski day−9 to 0 °C (16 to 32 °F) · gusts 54 km/h (34 mph) · freezing level 2,900 m (9,500 ft) | No snow |
| Mon | SnowPoor ski day−12 to −5 °C (10 to 23 °F) · gusts 55 km/h (34 mph) · freezing level 2,350 m (7,700 ft) | 5–15 cm (2–5 in) |
| Tue | SunnyBest day−17 to −7 °C (1 to 19 °F) · freezing level 1,950 m (6,400 ft) | No snow |
| Wed | SnowPoor ski day−16 to −7 °C (3 to 19 °F) · gusts 83 km/h (52 mph) · freezing level 2,050 m (6,700 ft) | 1–30 cm (0–11 in) |
| Thu | SnowFair ski day−17 to −8 °C (1 to 18 °F) · gusts 82 km/h (51 mph) · freezing level 1,750 m (5,700 ft) | 0–15 cm (0–6 in) |
Sky is graded over the ski day, 9am to 4pm. Bluebird means at least two of the three models show clear skies all day, none shows overcast, and no snow or rain is forecast. Models are weaker on cloud than on snow, and none of them can see valley fog, so treat it as a good sign rather than a promise.
Mammoth Mountain 14-day snow outlook, on the upper mountain
Days 8 to 14. Only two of our three models run this far ahead, and forecasts at this range often change, so read this as a guide to the pattern rather than a plan.
| Day | Weather | Snowfall |
|---|---|---|
| Fri 20 Nov | Some sun−17 to −11 °C (1 to 12 °F) | No snow |
| Sat 21 Nov | Sunny−18 to −7 °C (0 to 19 °F) | No snow |
| Sun 22 Nov | Sunny−19 to −4 °C (−2 to 25 °F) | No snow |
| Mon 23 Nov | Some sun−14 to −3 °C (7 to 27 °F) | No snow |
| Tue 24 Nov | Some sun−15 to −3 °C (5 to 27 °F) | No snow |
| Wed 25 Nov | Sunny−14 to −3 °C (7 to 27 °F) | No snow |
| Thu 26 Nov | Some sun−14 to 1 °C (7 to 34 °F) | No snow |
How much snow is there in Mammoth Mountain on the upper mountain?
No snow on the ground
This is an estimate from weather models, not a measurement, so it can differ from the depth a resort reports on its pistes. Check the official snow report before you travel.
Mammoth Mountain snow forecast at 2,424 m (village)
Next 24 hours in the village
Heavy snow this afternoon.
Starting around noon, easing by 10pm. 5–30 cm in the next 24 hours. Temperatures are close to 0°C, so some of it may fall as rain.
Likely, all three forecast models agree
Mammoth Mountain in the village (2,424 m / 8,000 ft) is forecast to get 5–30 cm (2–11 in) of snow in the next 24 hours and 15–55 cm (6–20 in) over the next 7 days. All three weather models we compare forecast snow in the next 24 hours. Expect temperatures from −3 to 4 °C (27 to 39 °F), the freezing level near 2,600 m (8,500 ft) and gusts up to 100 km/h (62 mph) over the next day. It should be sunny on Sunday.
- Temperature now
- 0 °C (32 °F)
- Freezing level
- 2,600 m (8,500 ft)
- Wind
- 11 km/h (7 mph), gusts 36 km/h (22 mph)
- Sky now
- Clear, 13% cloud
Mammoth Mountain hour by hour, in the village
Peak about 3 cm per hourShow the hours as a table
| Time | Weather | Snowfall |
|---|---|---|
| noon | Rain or snow | 0.6 cm (0.2 in) |
| 1pm | Rain or snow | 1 cm (0.5 in) |
| 2pm | Snow | 1 cm (0.4 in) |
| 3pm | Snow | 2 cm (0.6 in) |
| 4pm | Snow | 2 cm (0.9 in) |
| 5pm | Snow | 2 cm (0.7 in) |
| 6pm | Snow | 3 cm (1.0 in) |
| 7pm | Snow | 1 cm (0.5 in) |
| 8pm | Snow | 0.9 cm (0.4 in) |
| 9pm | Rain or snow | 0.5 cm (0.2 in) |
| midnight | Rain or snow | Under 0.1 cm |
Hours not listed are dry. Times are local (GMT-8).
Mammoth Mountain 7-day snow forecast, in the village
| Day | Weather | Snowfall |
|---|---|---|
| Today | Rain and snow−2 to 4 °C (28 to 39 °F) · gusts 100 km/h (62 mph) · freezing level 2,550 m (8,400 ft) | 5–30 cm (2–11 in) |
| Sat | Some sun−6 to 6 °C (21 to 43 °F) · gusts 61 km/h (38 mph) · freezing level 2,700 m (8,900 ft) | No snow |
| Sun | Sunny−4 to 7 °C (25 to 45 °F) · gusts 56 km/h (35 mph) · freezing level 2,900 m (9,500 ft) | No snow |
| Mon | Rain and snow−6 to 1 °C (21 to 34 °F) · gusts 58 km/h (36 mph) · freezing level 2,350 m (7,700 ft) | 3–5 cm (1–2 in) |
| Tue | Flurries−13 to 0 °C (9 to 32 °F) · freezing level 1,950 m (6,400 ft) | Under 1 cm (under 1 in) |
| Wed | Snow−11 to 0 °C (12 to 32 °F) · gusts 87 km/h (54 mph) · freezing level 2,050 m (6,700 ft) | 0–30 cm (0–11 in) |
| Thu | Snow−13 to −2 °C (9 to 28 °F) · gusts 67 km/h (42 mph) · freezing level 1,750 m (5,700 ft) | 0–15 cm (0–6 in) |
Sky is graded over the ski day, 9am to 4pm. Bluebird means at least two of the three models show clear skies all day, none shows overcast, and no snow or rain is forecast. Models are weaker on cloud than on snow, and none of them can see valley fog, so treat it as a good sign rather than a promise.
Mammoth Mountain 14-day snow outlook, in the village
Days 8 to 14. Only two of our three models run this far ahead, and forecasts at this range often change, so read this as a guide to the pattern rather than a plan.
| Day | Weather | Snowfall |
|---|---|---|
| Fri 20 Nov | Some sun−12 to −5 °C (10 to 23 °F) | No snow |
| Sat 21 Nov | Sunny−15 to −1 °C (5 to 30 °F) | No snow |
| Sun 22 Nov | Bluebird−16 to 2 °C (3 to 36 °F) | No snow |
| Mon 23 Nov | Some sun−9 to 4 °C (16 to 39 °F) | No snow |
| Tue 24 Nov | Some sun−9 to 3 °C (16 to 37 °F) | No snow |
| Wed 25 Nov | Sunny−10 to 2 °C (14 to 36 °F) | No snow |
| Thu 26 Nov | Some sun−11 to 5 °C (12 to 41 °F) | No snow |
How much snow is there in Mammoth Mountain in the village?
No snow on the ground
This is an estimate from weather models, not a measurement, so it can differ from the depth a resort reports on its pistes. Check the official snow report before you travel.
Where is Mammoth Mountain?
- State
- California
- Country
- United States
- Mountains
- Sierra Nevada (US)
- Village
- 2,424 m
- Top lift
- 3,369 m
- Vertical
- 945 m
- Lifts
- 25
- Season
- Mid-November to Late May
- Airports
- Mammoth Yosemite (MMH), Reno-Tahoe International (RNO)
- Official
- Snow report, Avalanche bulletin
- Pass
- Ikon Pass
- Website
- www.mammothmountain.com
About Mammoth Mountain
Mammoth Mountain is in the Sierra Nevada of California, next to the town of Mammoth Lakes. It has more than 3,500 skiable acres, rising from 7,953 ft (2,424 m) to a summit at 11,053 ft (3,369 m).
The resort gives its season as early November through June, sometimes later, and reports average snowfall of more than 400 inches at the base. Mammoth Yosemite Airport is nearby; Reno is about 168 miles (270 km) away by road.
The snow
Mammoth is a volcano in the eastern Sierra Nevada, with lifts from 2,424 m to 3,369 m, and it gets its snow from Pacific storms that arrive in enormous, wet doses rather than steadily. Our record shows about 12 snowy days at mid-mountain in March and 8 to 9 in December, January and February, but the winters swing wildly: 2022/23 was almost double the ten-year average, 2020/21 about half. Snow was on the ground every Christmas Day in the last ten years, and the season often runs to late May or beyond.
Who it suits
Everyone, with long groomers, big open bowls off the top and terrain parks that are among the best anywhere. It is a long way from anywhere, which keeps the crowds down midweek, and the town of Mammoth Lakes is a practical base rather than a pretty one. Mammoth is on the Ikon Pass.
Getting there
Mammoth Yosemite airport has limited winter flights. Reno is about three hours by road, Los Angeles about five, and Highway 395 can close in storms.
When does it snow in Mammoth Mountain?
In Mammoth Mountain, snow falls on about 12 days in March in a typical year, the snowiest month. Snow is regular from November to May.
| January | February | March | April | May | June | July | August | September | October | November | December |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 9 days | 9 days | 12 days | 6 days | 4 days | <1 days | 0 days | 0 days | <1 days | 2 days | 6 days | 8 days |
Average days each month with at least 1 cm of snowfall at mid-mountain, 2016–2025. Calculated from ERA5 reanalysis data.
Snow in Mammoth Mountain month by month
Averages for 2016 to 2025 at mid-mountain, from ERA5 reanalysis data. A sunny day has sunshine for at least 70% of the daylight hours.
| Month | Snow days | Share of the year's snow | Low to high | Sunny days |
|---|---|---|---|---|
| January | 9 | 21% | −10 to −1 °C (14 to 30 °F) | 24 |
| February | 9 | 20% | −10 to −1 °C (14 to 30 °F) | 23 |
| March | 12 | 21% | −9 to 0 °C (16 to 32 °F) | 24 |
| April | 6 | 7% | −6 to 5 °C (21 to 41 °F) | 27 |
| May | 4 | 3% | −3 to 8 °C (27 to 46 °F) | 29 |
| June | <1 | 0% | 3 to 16 °C (37 to 61 °F) | 29 |
| July | 0 | 0% | 7 to 21 °C (45 to 70 °F) | 31 |
| August | 0 | 0% | 7 to 20 °C (45 to 68 °F) | 31 |
| September | <1 | 0% | 3 to 16 °C (37 to 61 °F) | 30 |
| October | 2 | 2% | −1 to 11 °C (30 to 52 °F) | 30 |
| November | 6 | 9% | −6 to 4 °C (21 to 39 °F) | 26 |
| December | 8 | 17% | −9 to 1 °C (16 to 34 °F) | 24 |
Snow in Mammoth Mountain in November
In November, Mammoth Mountain gets snow on about 6 days at mid-mountain, and the month brings about 9% of the year's snowfall. Daily temperatures usually run from −6 to 4 °C (21 to 39 °F). About 26 days are sunny for most of the daylight hours.
Snow in Mammoth Mountain in December
In December, Mammoth Mountain gets snow on about 8 days at mid-mountain, and the month brings about 17% of the year's snowfall. Daily temperatures usually run from −9 to 1 °C (16 to 34 °F). About 24 days are sunny for most of the daylight hours.
Snow in Mammoth Mountain in January
In January, Mammoth Mountain gets snow on about 9 days at mid-mountain, and the month brings about 21% of the year's snowfall. Daily temperatures usually run from −10 to −1 °C (14 to 30 °F). About 24 days are sunny for most of the daylight hours.
Snow in Mammoth Mountain in February
In February, Mammoth Mountain gets snow on about 9 days at mid-mountain, and the month brings about 20% of the year's snowfall. Daily temperatures usually run from −10 to −1 °C (14 to 30 °F). About 23 days are sunny for most of the daylight hours.
Snow in Mammoth Mountain in March
In March, Mammoth Mountain gets snow on about 12 days at mid-mountain, and the month brings about 21% of the year's snowfall. Daily temperatures usually run from −9 to 0 °C (16 to 32 °F). About 24 days are sunny for most of the daylight hours.
Snow in Mammoth Mountain in April
In April, Mammoth Mountain gets snow on about 6 days at mid-mountain, and the month brings about 7% of the year's snowfall. Daily temperatures usually run from −6 to 5 °C (21 to 41 °F). About 27 days are sunny for most of the daylight hours.
Snow in Mammoth Mountain in May
In May, Mammoth Mountain gets snow on about 4 days at mid-mountain, and the month brings about 3% of the year's snowfall. Daily temperatures usually run from −3 to 8 °C (27 to 46 °F). About 29 days are sunny for most of the daylight hours.
Which winters were snowiest in Mammoth Mountain?
Of the last ten winters in Mammoth Mountain, 2022/23 was the snowiest, about 98% above the ten-year average at mid-mountain. The leanest was 2020/21, about 46% below average. The biggest single day of snowfall in the record was 10 March 2023.
| Winter | Compared with average | |
|---|---|---|
| 2016/17 | 167% of average | |
| 2017/18 | 83% of average | |
| 2018/19 | 135% of average | |
| 2019/20 | 58% of average | |
| 2020/21 | 54% of average | |
| 2021/22 | 77% of average | |
| 2022/23 | 198% of average | |
| 2023/24 | 78% of average | |
| 2024/25 | 75% of average | |
| 2025/26 | 74% of average |
Winters are compared with each other rather than given in centimetres. The ERA5 record is reliable on which winters were big and which were lean, but it underestimates absolute snowfall in the mountains, so the resort's own measured totals are the ones to trust for amounts.
Questions about snow in Mammoth Mountain
Does Mammoth Mountain have snow at Christmas?
Mammoth Mountain had at least 2.5 cm (1 in) of snow on the ground on Christmas Day in every one of the 10 years from 2016 to 2025 at mid-mountain. Fresh snow fell during 20 to 26 December in 9 of those years.
Does Mammoth Mountain have snow at New Year?
Mammoth Mountain had at least 2.5 cm (1 in) of snow on the ground on New Year's Day in every one of the 10 years from 2016 to 2025 at mid-mountain. Fresh snow fell during 27 December to 2 January in 8 of those years.
Does Mammoth Mountain have snow in mid-February?
Mammoth Mountain had at least 2.5 cm (1 in) of snow on the ground on 15 February in every one of the 10 years from 2016 to 2025 at mid-mountain. Fresh snow fell during 10 to 20 February in 9 of those years.
Does Mammoth Mountain have snow at Easter?
Mammoth Mountain had at least 2.5 cm (1 in) of snow on the ground on Easter Sunday in every one of the 10 years from 2016 to 2025 at mid-mountain. Fresh snow fell during Good Friday to Easter Monday in 7 of those years.
How many days a year does it snow in Mammoth Mountain?
It snows on about 56 days a year in Mammoth Mountain at mid-mountain, counting days with at least 1 cm of snowfall, averaged over 2016 to 2025. March has the most, about 12 days.
What is the snowiest month in Mammoth Mountain?
January is the snowiest month in Mammoth Mountain, bringing about 21% of the year's snowfall at mid-mountain, based on ERA5 reanalysis data for 2016 to 2025. March has the most snowy days, about 12.
Which recent winter was the snowiest in Mammoth Mountain?
Of the last ten winters in Mammoth Mountain, 2022/23 was the snowiest, about 98% above the ten-year average. The leanest was 2020/21, about 46% below average.
How cold does Mammoth Mountain get in winter?
February is the coldest month in Mammoth Mountain at mid-mountain, with average daily lows of −10 °C (14 °F) and highs of −1 °C (30 °F).
How many bluebird days does Mammoth Mountain get in winter?
From December to March, Mammoth Mountain averages about 24 days a month with sunshine for at least 70% of the daylight hours at mid-mountain, and about 8.5 hours of sunshine a day. March is the sunniest of those months. The figures are from ERA5 reanalysis for 2016 to 2025, which sees cloud over a region well but cannot see valley fog.
How high is Mammoth Mountain?
The village or lowest lift at Mammoth Mountain is at 2,424 m (8,000 ft) and the top lift is at 3,369 m (11,100 ft), a vertical drop of 945 m (3,100 ft).
When does the ski season start in Mammoth Mountain?
The lifts at Mammoth Mountain usually open in mid-November and close in late May. Exact dates change each year with the snow, so check the resort's own website before you book.
Snow forecasts near Mammoth Mountain
Heavenly20–45 cm this weekPalisades Tahoe40–70 cm this weekRenoNo snow this weekCompare Mammoth Mountain for snow
Facts checked 18 September 2026. Sources: Mammoth Mountain fact sheet, 2022/23 winter, Wikipedia: Mammoth Mountain Resort, Skiresort.com, Mammoth Mountain