Mount Snow weather by month looks different depending on when you’re planning your trip. A January afternoon in the Deerfield Valley has almost nothing in common with a July one, and knowing what to expect before you pack makes the difference between a smooth trip and a surprised one. Here’s a season-by-season breakdown of what West Dover and Wilmington actually feel like, based on decades of local weather data.
Winter (December–March): Cold, Snowy, and Built for It
January is the coldest month, with afternoons averaging around 27°F and nights dropping to about 11°F. February runs a touch milder in the daytime near 30°F, but it’s the snowiest month of the year in the valley, and up at the Mount Snow summit the mountain regularly reports well over 100 inches of snowfall across a full season thanks to a mix of natural snow and heavy snowmaking. March starts to loosen its grip, with highs climbing into the upper 30s, though nights still dip below freezing.
Ski season generally runs from mid-November through mid-April, so anyone visiting in this window should pack real winter layers, waterproof boots, and a warm hat regardless of what the forecast says a given day will bring. The cold is dry more often than damp, which makes it easier to layer for than a coastal winter.
Spring (April–May): Mud Season Gives Way to Green
April is Vermont’s least glamorous month. Highs average around 53°F, but the thaw turns back roads and trailheads soft and muddy, and locals genuinely call it mud season. It’s a good stretch for a quieter, lower-key visit rather than heavy hiking. By May, the valley turns a corner fast. Highs reach the low 60s, nights are still cool in the low 40s, and the trails firm back up as the last of the snow disappears from the higher elevations.
Late May is when the pond at Valley View Villa starts to feel inviting again, and the private hiking trail is usually dry enough for a proper walk rather than a slog.
Summer (June–August): Warm Days, Cool Mountain Nights
July is the warmest month, averaging a 75°F high, with June close behind at 71°F and August tapering slightly to 73°F. What surprises a lot of first-time guests is how much the temperature drops after sunset. Even in the middle of July, evenings often settle into the mid-50s, so a sweatshirt on the deck after dinner is normal, not an oddity. Afternoon thunderstorms are common but usually brief, clearing out to blue sky within an hour or two.
This is prime season for the pond, the hiking trail, and the hot tub in the cool evening air rather than the heat of the day.
Fall (September–November): Crisp Air and Fewer Crowds
September is the hinge month, with highs still near 66°F but noticeably cooler mornings in the mid-40s. October brings the big shift, averaging a 54°F high and 36°F low, and it’s when the valley’s fall foliage peaks — usually mid-to-late October, later than the famous routes in northern Vermont. By November, highs have dropped into the low 40s and the first real cold settles in ahead of ski season. Our Mount Snow fall foliage guide covers the color timing in more detail if autumn is your target.
Fall is also when the crowds thin out the most, which makes it one of the best times to have the overlooks, trails, and back roads mostly to yourself.
Mount Snow Weather by Month, at a Glance
🌡️ January: 27°F / 11°F, deep winter
🌡️ February: 30°F / 13°F, snowiest month
🌡️ March: 39°F / 22°F, transition begins
🌡️ April: 53°F / 32°F, mud season
🌡️ May: 63°F / 42°F, trails dry out
🌡️ June: 71°F / 51°F, warming fast
🌡️ July: 75°F / 55°F, warmest month
🌡️ August: 73°F / 53°F, still summer
🌡️ September: 66°F / 46°F, cooling mornings
🌡️ October: 54°F / 36°F, foliage peak
🌡️ November: 42°F / 27°F, pre-ski chill
🌡️ December: 32°F / 18°F, winter returns
Averages are exactly that — averages. Any given week can run warmer or colder than the numbers above, so it’s worth checking a short-range forecast as your trip gets close, especially in shoulder months like April and November when conditions swing the most.
🗺️ More to Explore Near Mount Snow
- Vermont fall packing list — What to bring for October’s layers, mud, and rain
- Mount Snow Fall Foliage Guide — When the colors peak and where to see them
- When to Book a Vermont Fall Foliage Trip — Lead time for the busiest weekends
- Camping Near Mount Snow — Best months for a tent or RV trip
- Dog-Friendly Guide to Mount Snow — Planning a pet-friendly visit in any season
- Hospitals and Pharmacies Near Mount Snow — Practical info to have on hand for any season
Frequently Asked Questions
What is the coldest month near Mount Snow?
January is the coldest, with average highs around 27°F and lows near 11°F. February stays nearly as cold in the mornings but is the snowiest month of the year.
What is the warmest month near Mount Snow?
July is the warmest month, averaging a high near 75°F. Evenings cool off noticeably even in mid-summer, so pack a light layer for after dark.
When is mud season in Vermont?
Mud season typically runs through April, as snowmelt softens back roads and trails. It’s a quieter time to visit but not the best window for serious hiking.
What should I pack for a fall trip to the Mount Snow area?
Layers are the key — mornings in September and October can start in the 40s and warm into the 60s by afternoon. A warmer jacket becomes necessary by November.
Does it snow a lot at Mount Snow?
The mountain reports well over 100 inches of snowfall in a typical season thanks to natural snow plus extensive snowmaking, even in years when the valley floor sees less.
