Flagstaff weather in April
April in Flagstaff: nice, dry — an excellent time to visit.
#6 of 12 months in Flagstaff · #343 of 897 destinations to visit in April · comfort 83/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Flagstaff in April
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Flagstaff climate normals — April
| Daytime high | 17°C / 63°F | 😎 nice |
|---|---|---|
| Nighttime low | 4°C / 39°F | |
| Rainfall | 18 mm / 0.7 in | ☀️ dry |
| Rainy days | 4 days | |
| Humidity | 38% | 🌵 dry |
| Dew point | -6°C / 21°F | |
| Sunshine | 12.1 h/day | |
| Daylight | 13.1 h | |
| Wind | 21 km/h / 13 mph | |
| Snowfall | 3.1 cm / 1.2 in | |
| Air quality (US AQI) | 57 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Flagstaff in April — FAQ
- Is April a good time to visit Flagstaff?
- April in Flagstaff: nice, dry — an excellent time to visit. It ranks #6 of 12 months for Flagstaff on SeasonMap's comfort score (83/100).
- What is the weather like in Flagstaff in April?
- In April, Flagstaff averages a daily high of 17°C and a low of 3.9°C, with about 18.2 mm of rain over roughly 3.8 rainy days.
- What is the air quality in Flagstaff in April?
- Flagstaff has a mean US Air Quality Index of about 57 in April.
- Does it snow in Flagstaff in April?
- Flagstaff sees roughly 3.1 cm of snowfall in April.