August weather forecastGlendale, AZ
August
Weather in August
Despite entering the final segment of summer in August, heat reigns supreme in Glendale, resulting in continued elevated nighttime temperatures of 83.7°F (28.7°C). This tampered nocturnal relief persists for the majority of summer nights. Nevertheless, a light decline in the domination of the sun begins to take place. A slight decline in daylight hours is accompanied by the scaling back of the UV index to 8. Unexpectedly, this month overtakes its predecessor as the wettest month, with 1.18" (30mm) of rainfall.Temperature
The start of August in Glendale marks an average high-temperature of a still torrid 100.9°F (38.3°C), hardly distinguishable from the conditions in July. Throughout the month of August, Glendale witnesses an average temperature of 83.7°F (28.7°C).Humidity
In Glendale, the average relative humidity in August is 30%.Rainfall
August is the month with the most rainfall in Glendale, Arizona. Rain falls for 10.1 days and accumulates 1.18" (30mm) of precipitation.Daylight
In Glendale, the average length of the day in August is 13h and 22min.On the first day of August in Glendale, sunrise is at 5:41 am and sunset at 7:28 pm. On the last day of the month, sunrise is at 6:02 am and sunset at 6:54 pm MST.
Sunshine
In Glendale, the average sunshine in August is 11.9h.UV index
The months with the highest UV index are June through August, with an average maximum UV index of 8. A UV Index reading of 8 to 10 represents a very high health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: The maximum UV index of 8 during August translates into these guidelines:
Without constant care, eyes and skin might suffer damage in a short time. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Glendale, AZ
- Average high temperature in August: 100.9°F
The warmest month (with the highest average high temperature) is July (101.8°F).
The month with the lowest average high temperature is December (61.9°F).
- Average low temperature in August: 83.7°F
The month with the highest average low temperature is August (83.7°F).
The coldest month (with the lowest average low temperature) is December (46.8°F).
Average pressure in August
Glendale, AZ
- Average pressure in August: 29.86"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.8"Hg).
Average wind speed in August
Glendale, AZ
- Average wind speed in August: 5.4mph
The windiest months (with the highest average wind speed) are April and May (6.6mph).
The calmest month (with the lowest average wind speed) is December (4.6mph).
Average humidity in August
Glendale, AZ
- Average humidity in August: 30%
The month with the highest relative humidity is December (43%).
The month with the lowest relative humidity is June (17%).
Average rainfall in August
Glendale, AZ
- Average rainfall in August: 1.18"
The wettest month (with the highest rainfall) is August (1.18").
The driest month (with the least rainfall) is June (0.08").
Average rainfall days in August
Glendale, AZ
- Average rainfall days in August: 10.1 days
The month with the highest number of rainy days is July (10.7 days).
The month with the least rainy days is June (1.1 days).
Average daylight in August /
Average sunshine in August
Glendale, AZ
- Average daylight in August: 13h and 24min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in August: 11h and 54min
The month with the most sunshine is June (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 48min).
Average sunshine days in August
Glendale, AZ
- Average sunshine days in August: 15.9 days
The month with the most sunshine days is May (28.6 days).
The month with the least sunshine days is August (15.9 days).
Average UV index in August
Glendale, AZ
- Average UV index in August: 8
The months with the highest UV index are June, July and August (UV index 8).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in August
Glendale, AZ
- Average cloud cover in August: 12
The month with the most cloud cover is December (Cloud cover 21).
The month with the least cloud cover is June (Cloud cover 5).
Average visibility in August
Glendale, 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).
