The highest day temperature in April 2025 was 72°F. The lowest night temperature was 20°F. The average values for day and night temperatures during April were 54.8°F и 41.1°F respectivly.

Most of the days in April are sunny but you can also expect cloudy and gloomy days.

Precipitation total in April for Flagstaff is 0.5 in. It makes april the least rainy month of the year.

The average wind speed in April is 8.9 mph. It makes April the most windy month of the year for Flagstaff.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Flagstaff in April is 10.7 hours.