Overview: Flagstaff Located in the United States of America, Flagstaff boasts a mild continental climate that presents a diverse range of weather patterns throughout the year. Daytime temperatures fluctuate from a cool 6 °C (42 °F) in the chilly month of December to a warm 28 °C (82 °F) during the peak of summer in July. At night, you can experience the coldest temperatures in December with a sharp drop to -8 °C (17 °F), while July offers the most comforting night temperatures at 11 °C (52 °F). As the seasons turn, precipitation varies significantly, with June being notably dry, averaging only 3 days of rainfall, whereas August stands out as the wettest month with as much as 11 days of rain. The diverse climate means visitors can enjoy sun-filled days, with sunlight duration ranging significantly across the months, from just under 7 hours in December to more than 12 hours in January. Each month presents its own unique set of weather conditions, inviting a closer look at the detailed forecasts for optimized travel planning.