Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
A minor adjustment in Glendale's average high-temperature is noted with the start of September, touching a still warm 83.8°F (28.8°C) from August's 85.6°F (29.8°C). An average nighttime temperature of 63.1°F (17.3°C) is recorded in Glendale during September.Heat index
September's average heat index is estimated at a hot 86°F (30°C). Enduring exposure and continuous activity might cause a feeling of tiredness and induce heat cramps.It is essential to grasp that the heat index's numbers are for shade and light wind settings. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', unifies temperature and humidity readings to offer a comprehensive feel of warmth. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.
Humidity
In Glendale, California, the average relative humidity in September is 52%.Rainfall
In Glendale, California, during September, the rain falls for 2.9 days and regularly aggregates up to 0.16" (4mm) of precipitation. 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 September, the average length of the day is 12h and 22min.On the first day of the month, sunrise is at 6:27 am and sunset at 7:18 pm. On the last day of September, sunrise is at 6:47 am and sunset at 6:38 pm PDT.
Sunshine
In September, the average sunshine in Glendale is 10.8h.UV index
June through September, with an average maximum UV index of 6, are months with the highest UV index in Glendale, California. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 6 in September converts into the following recommendations:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in Glendale in September?
What is the average humidity in September in Glendale?
How much does it rain in Glendale in September?
When it does not snow in Glendale?
How many hours of daylight does Glendale have in September?
What time are sunrise and sunset in September in Glendale?
How many hours of sunshine does Glendale have in September?
When is the highest UV index in Glendale?
What is the UV index reading in September in Glendale?
Average temperature in September
Glendale, CA
- Average high temperature in September: 83.8°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 September: 63.1°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 September
Glendale, CA
- Average pressure in September: 29.89"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 September
Glendale, CA
- Average wind speed in September: 4.4mph
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 September
Glendale, CA
- Average humidity in September: 52%
The month with the highest relative humidity is June (60%).
The month with the lowest relative humidity is November (48%).
Average rainfall in September
Glendale, CA
- Average rainfall in September: 0.16"
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 September
Glendale, CA
- Average rainfall days in September: 2.9 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 September
Glendale, CA
- Average snowfall days in September: 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 September /
Average sunshine in September
Glendale, CA
- Average daylight in September: 12h and 2min
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 September: 10h and 5min
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 September
Glendale, CA
- Average sunshine days in September: 25 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 September
Glendale, CA
- Average UV index in September: 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 September
Glendale, CA
- Average cloud cover in September: 7
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 September
Glendale, CA
- Average visibility in September: 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).
Glendale, California, USA
Weather forecast for your location
2. Allow the app to use your location