August weather forecastGlendale, CA

August
Weather in August
The last month of the summer, August, is also a moderately hot month in Glendale, California, with temperature in the range of an average high of 85.6°F (29.8°C) and an average low of 64.8°F (18.2°C).Temperature
The warmest time of the year is August, with temperatures averaging a high of 85.6°F (29.8°C) and a low of 64.8°F (18.2°C).Heat index
August's mean heat index is estimated at a tropical 87.8°F (31°C). Long-lasting exposure and activity potentially induce a sense of weariness, with the risk of heat cramps.Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.
Humidity
The average relative humidity in August in Glendale, California, is 52%.Rainfall
In Glendale, California, in August, during 2 rainfall days, 0.12" (3mm) of precipitation is typically accumulated. In Glendale, during the entire year, the rain falls for 50.4 days and collects up to 8.35" (212mm) of precipitation.Snowfall
January through November are months without snowfall in Glendale.Daylight
In Glendale, the average length of the day in August is 13h and 23min.On the first day of August in Glendale, sunrise is at 6:04 am and sunset at 7:53 pm. On the last day of the month, sunrise is at 6:26 am and sunset at 7:19 pm PDT.
Sunshine
The average sunshine in August in Glendale is 12h.UV index
The months with the highest UV index in Glendale, California, are June through September, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for average individuals.Note: A maximum high UV index of 6 in August translates into the following recommendations:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Glendale, CA
- Average high temperature in August: 85.6°F
The warmest month (with the highest average high temperature) is August (85.6°F).
The month with the lowest average high temperature is December (62.4°F).
- Average low temperature in August: 64.8°F
The month with the highest average low temperature is August (64.8°F).
The coldest month (with the lowest average low temperature) is December (47.3°F).
Average pressure in August
Glendale, CA
- Average pressure in August: 29.9"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in August
Glendale, CA
- Average wind speed in August: 4.6mph
The windiest month (with the highest average wind speed) is April (5.8mph).
The calmest month (with the lowest average wind speed) is September (4.4mph).
Average humidity in August
Glendale, CA
- Average humidity in August: 52%
The month with the highest relative humidity is June (60%).
The month with the lowest relative humidity is November (48%).
Average rainfall in August
Glendale, CA
- Average rainfall in August: 0.12"
The wettest month (with the highest rainfall) is February (1.77").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in August
Glendale, CA
- Average rainfall days in August: 2 days
The month with the highest number of rainy days is March (7.1 days).
The month with the least rainy days is June (1.1 days).
Average snowfall days in August
Glendale, CA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is December (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in August /
Average sunshine in August
Glendale, CA
- Average daylight in August: 13h and 24min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in August: 12h and 0min
The months with the most sunshine are June and July (Average sunshine: 12h and 6min).
The months with the least sunshine are January, February and December (Average sunshine: 6h and 54min).
Average sunshine days in August
Glendale, CA
- Average sunshine days in August: 26.5 days
The month with the most sunshine days is June (26.9 days).
The month with the least sunshine days is February (21 days).
Average UV index in August
Glendale, CA
- Average UV index in August: 6
The months with the highest UV index are June, July, August and September (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 4).
Average cloud cover in August
Glendale, CA
- Average cloud cover in August: 5
The months with the most cloud cover are March and December (Cloud cover 21).
The month with the least cloud cover is August (Cloud cover 5).
Average visibility in August
Glendale, CA
- 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).





