Climate Insights for Flagstaff

The climate in Flagstaff is temperate. The average annual temperature is 17°C and approximately 933 mm of precipitation falls per year. February is the wettest month, receiving around 126 mm of rainfall. Flagstaff is in the Southern Hemisphere. The seasons are reversed: summer runs from December to February, while winter falls between June and August. The summer months are: January, February, March. The coldest months are July, June, August, when temperatures can drop to 6°C.The climate in Flagstaff is temperate. The average annual temperature is 63°F and approximately 36.8 in of precipitation falls per year. February is the wettest month, receiving around 5 in of rainfall. Flagstaff is in the Southern Hemisphere. The seasons are reversed: summer runs from December to February, while winter falls between June and August. The summer months are: January, February, March. The coldest months are July, June, August, when temperatures can drop to 43°F.

Flagstaff sees moderate temperature variation throughout the year, ranging from 6°C to 26°C. The warmest month is January, when average highs reach 26°C and the mean temperature sits around 21°C. July is the coolest month, with minimum temperatures around 6°C and an average of 13°C. On average, daily temperatures fluctuate by about 12°C between overnight lows and afternoon highs. The sharpest temperature change occurs between March and April, with a 3°C shift in average temperatures.Temperatures in Flagstaff vary considerably across the year, with a 37°F difference between the coldest and warmest months. The warmest month is January, when average highs reach 80°F and the mean temperature sits around 70°F. July is the coolest month, with minimum temperatures around 43°F and an average of 55°F. On average, daily temperatures fluctuate by about 22°F between overnight lows and afternoon highs. The sharpest temperature change occurs between March and April, with a 5°F shift in average temperatures.

Flagstaff is a moderately rainy area, receiving approximately 933 mm of precipitation annually, which averages out to around 78 mm per month. The wettest month is February, averaging 126 mm of rainfall. December and January also tend to see above-average precipitation. The driest month is July, with just 17 mm. That's 109 mm less than February, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.Flagstaff is a moderately rainy area, receiving approximately 36.8 in of precipitation annually, which averages out to around 3.1 in per month. The wettest month is February, averaging 5 in of rainfall. December and January also tend to see above-average precipitation. The driest month is July, with just 0.7 in. That's 4.3 in less than February, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.

Flagstaff is relatively calm, with an average annual wind speed of 9km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is October, averaging 10km/h, though still comfortable for most outdoor activities. The calmest conditions occur in May, with average winds dropping to 7km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 3km/h between the calmest and windiest months.Flagstaff is mildly breezy, with an average annual wind speed of 5mph. For context, sustained winds below 7mph are generally light, while anything above 16mph is considered strong. The windiest month is October, averaging 6mph, though still comfortable for most outdoor activities. The calmest conditions occur in May, with average winds dropping to 4mph, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 2mph between the calmest and windiest months.

The best time to visit Flagstaff is during April, May, September and October, when the weather is most comfortable for travellers. During these months, average temperatures hover around 16°C with modest rainfall averaging 70 mm per month. By contrast, January can be uncomfortably hot with highs reaching 26°C, while July is the coldest period with lows dropping to 6°C. Despite being the best months overall, some rain is still likely. Pack a waterproof layer and plan a mix of indoor and outdoor activities.The best time to visit Flagstaff is during April, May, September and October, when the weather is most comfortable for travellers. During these months, average temperatures hover around 62°F with modest rainfall averaging 2.8 in per month. By contrast, January can be uncomfortably hot with highs reaching 80°F, while July is the coldest period with lows dropping to 43°F. Despite being the best months overall, some rain is still likely. Pack a waterproof layer and plan a mix of indoor and outdoor activities.

The table below shows monthly climate averages for Flagstaff based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.The table below shows monthly climate averages for Flagstaff based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Fahrenheit (°F). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in miles per hour (mph). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.