Monthly Weather in Flagstaff, United States
What is the average monthly temperature in Flagstaff?
The average monthly temperature in Flagstaff, Arizona, United States ranges from -2.5°C (27.5°F) in January to 22.9°C (73.2°F) in July. Flagstaff temperature by month is given in the table below.
| Month | Celsius | Fahrenheit |
|---|---|---|
| January | -2.5°C | 27.5°F |
| February | -2.1°C | 28.2°F |
| March | 1.0°C | 33.8°F |
| April | 7.9°C | 46.2°F |
| May | 12.0°C | 53.6°F |
| June | 15.6°C | 60.1°F |
| July | 22.9°C | 73.2°F |
| August | 19.4°C | 66.9°F |
| September | 15.4°C | 59.7°F |
| October | 10.2°C | 50.4°F |
| November | 4.5°C | 40.1°F |
| December | 0.9°C | 33.6°F |
What is the hottest month in Flagstaff?
The hottest months in Flagstaff are July, August and June. During July the average temperature outside is 22.9°C (73.2°F), in August it is 19.4°C (66.9°F) and during June the air temperature is around 15.6°C (60.1°F).
What is the coldest month in Flagstaff?
The coldest months in Flagstaff are January, February and December. In January the average air temperature drops to -2.5°C (27.5°F), in February air temperature is -2.1°C (28.2°F) and during December it is 0.9°C (33.6°F).
How much does it rain on average in Flagstaff?
On average it rains for 12 month(s) in Flagstaff, United States with an average of 8.8 days of rain per month. In total Flagstaff has 106 rainy days in a year.
When does it rain the most in Flagstaff?
In Flagstaff it rains the most during the following months.
- March - on average 5.8mm (0.23 inches) of rainfall per day.
- August - on average 2.63mm (0.1 inches) of rainfall per day.
- May - on average 1.03mm (0.04 inches) of rainfall per day.
- October - on average 0.79mm (0.03 inches) of rainfall per day.
- November - on average 0.7mm (0.03 inches) of rainfall per day.
- July - on average 0.54mm (0.02 inches) of rainfall per day.
Does it snow in Flagstaff?
Yes, it snows in Flagstaff. The following months have the most amount of snow.
- January. Flagstaff has 7.34mm (0.29 inches) of snowfall and 19.67 mm (0.77 inches) of snow on the ground in January.
- February. Flagstaff has 6.01mm (0.24 inches) of snowfall and 8.17 mm (0.32 inches) of snow on the ground in February.
- March. Flagstaff has 3.09mm (0.12 inches) of snowfall and 7.26 mm (0.29 inches) of snow on the ground in March.
- November. Flagstaff has 0.26mm (0.01 inches) of snowfall and 0.07 mm (0 inches) of snow on the ground in November.
- December. Flagstaff has 0.1mm (0 inches) of snowfall and 0.04 mm (0 inches) of snow on the ground in December.
- April. Flagstaff has 0.04mm (0 inches) of snowfall and 0.35 mm (0.01 inches) of snow on the ground in April.
When is it windy in Flagstaff?
The windiest months in Flagstaff, United States are February, June and March. In February the average windspeed is 33 km/h (20.5 mph), during June the windspeed is 32.6 km/h (20.3 mph) and in March the windspeed is 31.3 km/h (19.4 mph).
What are the least windy months in Flagstaff?
The least windy months in Flagstaff are December, August and November. In December the average windspeed is 19.7 km/h (12.2 mph), during August the windspeed is 23.1 km/h (14.4 mph) and in November the windspeed is 24.4 km/h (15.2 mph).
When is it cloudy in Flagstaff?
The cloudiest months in Flagstaff, United States are January, March and August. On average in January 42% of sky is covered by clouds, in March 41.2% is covered by clouds and in August clouds cover about 36.3% of sky.
When does Flagstaff have the clearest sky?
Flagstaff has the clearest sky in April, July and June. In April 8.5% of sky is covered by clouds, in July clouds cover around 10.9% and during June clouds cover about 11% of sky.
What is the average daylight duration in Flagstaff?
The average daylight duration in Flagstaff is 12 hours 10 minutes 42 seconds.
Which months have the most daylight in Flagstaff?
The longest days in Flagstaff are during June, July and May.
- June - 14 hours 29 minutes 18 seconds of daylight.
- July - 14 hours 15 minutes 21 seconds of daylight.
- May - 14 hours 1 minutes 19 seconds of daylight.
Which months have the least daylight in Flagstaff?
The shortest days in Flagstaff are during December, January and November.
- December - 9 hours 49 minutes 44 seconds of daylight.
- January - 10 hours 5 minutes 49 seconds of daylight.
- November - 10 hours 19 minutes 31 seconds of daylight.
What are the humidity levels in Flagstaff throughout the year?
Humidity levels in Flagstaff, United States range from 32.5% in June to 72.2% in January.
What are the pressure levels in Flagstaff throughout the year?
Pressure levels in Flagstaff change from 1012.5 mb (millibars) in June to 1021 mb in December.
What is the visibility in Flagstaff throughout the year?
Visibility in Flagstaff changes from lowest 13.4 km (8.3 miles) in January to highest 16 km (9.9 miles) in July.
What are the UV levels in Flagstaff throughout the year?
UV levels change in Flagstaff from 3.1 in January to 8.3 in July.
Which months have the highest UV levels in Flagstaff throughout the year?
In Flagstaff, United States the highest UV index is during July, May and June. During July the average UV index is 8.3, in May UV level is 8.2 and in June UV index is around 8.1.
Which months have the lowest UV levels in Flagstaff throughout the year?
The lowest UV levels in Flagstaff are in January, December and November. In January the average UV index is around 3.1, in December UV index is 3.5 and during November UV level is 4.2.