Great Sand Dunes National Park weather in March
March in Great Sand Dunes National Park: cold, dry, with reliable snow — a great time to visit.
#9 of 12 months in Great Sand Dunes National Park · #321 of 604 destinations to visit in March · comfort 74/100 (tier B)
Updated June 2026 · climate normals from ERA5 reanalysis
Great Sand Dunes National Park climate normals — March
| Daytime high | 7°C / 45°F | 🧥 cold |
|---|---|---|
| Nighttime low | -5°C / 22°F | |
| Feels like (high) | 4°C / 39°F | |
| Rainfall | 27 mm / 1.1 in | ☀️ dry |
| Rainy days | 7 days | |
| Humidity | 56% | 🍃 comfortable |
| Dew point | -9°C / 15°F | |
| Sunshine | 10.4 h/day | |
| Daylight | 12 h | |
| Wind | 16 km/h / 10 mph | |
| Snowfall | 14.9 cm / 5.9 in | |
| Air quality (US AQI) | 52 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is Great Sand Dunes National Park?
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Great Sand Dunes National Park in March — FAQ
- Is March a good time to visit Great Sand Dunes National Park?
- March in Great Sand Dunes National Park: cold, dry, with reliable snow — a great time to visit. It ranks #9 of 12 months for Great Sand Dunes National Park on SeasonMap's comfort score (74/100).
- What is the weather like in Great Sand Dunes National Park in March?
- In March, Great Sand Dunes National Park averages a daily high of 7.4°C and a low of -5.3°C, with about 27 mm of rain over roughly 6.8 rainy days.
- What is the air quality in Great Sand Dunes National Park in March?
- Great Sand Dunes National Park has a mean US Air Quality Index of about 52 in March.
- Does it snow in Great Sand Dunes National Park in March?
- Great Sand Dunes National Park sees roughly 14.9 cm of snowfall in March.