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 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
With September's onset, the weather reveals a slight temperature decrease, transitioning from a fiery hot 95°F (35°C) in August to a tropical 88.2°F (31.2°C). During the month of September, the temperature generally drops to a low average of 67.6°F (19.8°C).Heat index
The heat index in September is appraised at a very hot 100.4°F (38°C). Implement enhanced safety actions, heat cramps and heat exhaustion could occur. Sustained activity might result in heatstroke.Given the heat index, its values are aligned with shaded sites and gentle winds. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', marries air temperature and humidity to produce a value illustrating perceived warmth. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. Keep aware, the sun, when shining directly, can intensify the heat experience, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
The innate cooling system of the human body revolves around perspiration, with the evaporation of sweat being central to this process. An increase in relative humidity disrupts body cooling by slowing the evaporation rate, thereby reducing the rate at which the body cools and amplifying the sense of heat. When body heat isn't effectively managed, risks of dehydration and overheating amplify.
Humidity
In Chandler, the average relative humidity in September is 69%.Rainfall
In September, the rain falls for 14.1 days. Throughout September, 1.61" (41mm) of precipitation is accumulated. Throughout the year, there are 143.4 rainfall days, and 25.75" (654mm) of precipitation is accumulated.Snowfall
April through October and December are months without snowfall.Daylight
The average length of the day in September is 12h and 21min.On the first day of September, sunrise is at 6:57 am and sunset at 7:45 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 7:07 pm CDT.
Sunshine
In September, the average sunshine is 8.8h.UV index
In Chandler, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: A daily maximum UV index of 6 in September translates into the following instructions:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is September?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
What is the average length of the day in September?
When is the sunrise / sunset in September in Chandler?
How many hours of sunshine does Chandler have in September?
How high is the UV index in September?
Average temperature in September
Chandler, TX
- Average high temperature in September: 88.2°F
The warmest month (with the highest average high temperature) is August (95°F).
The month with the lowest average high temperature is January (54.7°F).
- Average low temperature in September: 67.6°F
The month with the highest average low temperature is August (73.6°F).
The coldest month (with the lowest average low temperature) is January (38.8°F).
Average pressure in September
Chandler, TX
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in September
Chandler, TX
- Average wind speed in September: 5.5mph
The windiest month (with the highest average wind speed) is March (7.7mph).
The calmest month (with the lowest average wind speed) is September (5.5mph).
Average humidity in September
Chandler, TX
- Average humidity in September: 69%
The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is August (65%).
Average rainfall in September
Chandler, TX
- Average rainfall in September: 1.61"
The wettest month (with the highest rainfall) is April (2.99").
The driest month (with the least rainfall) is August (1.54").
Average rainfall days in September
Chandler, TX
- Average rainfall days in September: 14.1 days
The month with the highest number of rainy days is September (14.1 days).
The month with the least rainy days is January (9.3 days).
Average snowfall in September
Chandler, TX
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.55").
The months with the least snowfall are April, May, June, July, August, September, October and December (0").
Average snowfall days in September
Chandler, TX
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is February (1.4 days).
The months with the least snowfall days are April, May, June, July, August and October (0 days).
Average daylight in September /
Average sunshine in September
Chandler, TX
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).
- Average sunshine in September: 8h and 5min
The month with the most sunshine is August (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).
Average sunshine days in September
Chandler, TX
- Average sunshine days in September: 13.5 days
The month with the most sunshine days is October (20.1 days).
The month with the least sunshine days is September (13.5 days).
Average UV index in September
Chandler, TX
- Average UV index in September: 6
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, November and December (UV index 3).
Average cloud cover in September
Chandler, TX
- Average cloud cover in September: 31
The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 26).
Average visibility in September
Chandler, TX
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
Chandler, Texas, USA
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