Flagstaff Weather in July

The climate in Flagstaff during July can be summarized as mild and reasonably dry.

July is in the summer in Flagstaff and is typically the warmest month of the year. Daytime maximum temperatures average around a comfortable 28°C (82°F), whilst at night 8°C (46°F) is normal.

On average July is the 2nd wettest month of the year in Flagstaff with around 72mm 2.8 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 9 days, although this may vary considerably.

On the flip side this corresponds to an average of 11.2 hours of sunshine per day.

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Flagstaff in July 2025.