Contents
- Weather in August
- Frequently asked questions
- Average temperature in August
- Average pressure in August
- Average wind speed in August
- Average humidity in August
- Average rainfall in August
- Average rainfall days in August
- Average snowfall in August
- Average snowfall days in August
- Average daylight in August
- Average sunshine in August
- Average sunshine days in August
- Average UV index in August
- Average cloud cover in August
- Average visibility in August
Weather in August
Temperature
In August, the average high-temperature is essentially the same as in July - a still moderately hot 81°F (27.2°C). In Flagstaff, the average low-temperature is 59.7°F (15.4°C).Heat index
In August, the average heat index is evaluated at 80.6°F (27°C). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like', 'felt air temperature', 'real feel', or 'apparent temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (metabolic differences, wind, differences in body mass, height, and shape). Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.
Humidity
The average relative humidity in August is 45%.Rainfall
In Flagstaff, in August, during 14 rainfall days, 1.93" (49mm) of precipitation is typically accumulated. In Flagstaff, during the entire year, the rain falls for 74.8 days and collects up to 12.56" (319mm) of precipitation.Snowfall
In Flagstaff, snow does not fall in June through September.Daylight
In Flagstaff, the average length of the day in August is 13h and 26min.On the first day of August in Flagstaff, Arizona, sunrise is at 5:35 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 5:58 am and sunset at 6:55 pm MST.
Sunshine
June and August, with an average of 12.2h of sunshine, are months with the most sunshine in Flagstaff.UV index
June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: In August, the average maximum UV index of 6 translate into the following recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
FAQ
What is the temperature in August in Flagstaff?
What is the average humidity in August in Flagstaff?
How many days does it rain in August in Flagstaff?
When it does not snow in Flagstaff?
How many hours of daylight does Flagstaff have in August?
When is the sunrise / sunset in August in Flagstaff?
What are the months with the most sunshine in Flagstaff?
How long on average sun shines in August in Flagstaff?
What are the months with the highest UV index in Flagstaff?
What is the UV index intensity in August in Flagstaff?
Average temperature in August
Flagstaff, AZ
- Average high temperature in August: 81°F
The warmest month (with the highest average high temperature) is July (82.8°F).
The months with the lowest average high temperature are January and December (42.6°F).
- Average low temperature in August: 59.7°F
The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is December (24.8°F).
Average pressure in August
Flagstaff, AZ
- Average pressure in August: 29.94"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in August
Flagstaff, AZ
- Average wind speed in August: 5.8mph
The windiest month (with the highest average wind speed) is April (9.6mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).
Average humidity in August
Flagstaff, AZ
- Average humidity in August: 45%
The month with the highest relative humidity is January (66%).
The month with the lowest relative humidity is June (24%).
Average rainfall in August
Flagstaff, AZ
- Average rainfall in August: 1.93"
The wettest month (with the highest rainfall) is July (2.56").
The driest month (with the least rainfall) is June (0.24").
Average rainfall days in August
Flagstaff, AZ
- Average rainfall days in August: 14 days
The month with the highest number of rainy days is July (16.2 days).
The months with the least rainy days are February and November (2.5 days).
Average snowfall in August
Flagstaff, AZ
- Average snowfall in August: 0"
The month with the highest snowfall is December (7.36").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Flagstaff, AZ
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is December (7.4 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in August /
Average sunshine in August
Flagstaff, AZ
- Average daylight in August: 13h and 26min
The month with the longest days is June (Average daylight: 14h and 29min).
The month with the shortest days is December (Average daylight: 9h and 50min).
- Average sunshine in August: 12h and 12min
The months with the most sunshine are June and August (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 48min).
Average sunshine days in August
Flagstaff, AZ
- Average sunshine days in August: 12.3 days
The month with the most sunshine days is June (25.8 days).
The month with the least sunshine days is July (11.4 days).
Average UV index in August
Flagstaff, AZ
- Average UV index in August: 6
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in August
Flagstaff, AZ
- Average cloud cover in August: 13
The month with the most cloud cover is December (Cloud cover 24).
The month with the least cloud cover is June (Cloud cover 7).
Average visibility in August
Flagstaff, AZ
- Average visibility in August: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
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