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
September brings a minor shift in the average high-temperature, adjusting from a fiery hot 95.5°F (35.3°C) in August to a hot 88.9°F (31.6°C). Anderson records an average nighttime low of 70°F (21.1°C) in September.Heat index
The average heat index in September is evaluated at a blisteringly hot 104°F (40°C). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.Heat index details are generally centered around shaded locations and a mild breeze. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', gives a temperature feeling by integrating air temperature and humidity. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. A surge in relative humidity can disrupt the body's normal cooling function by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. The body is at risk of dehydration and related complications when it fails to shed excessive heat.
Humidity
In Anderson, the average relative humidity in September is 73%.Rainfall
In Anderson, during September, the rain falls for 12.5 days and regularly aggregates up to 1.26" (32mm) of precipitation. In Anderson, Texas, during the entire year, the rain falls for 133.8 days and collects up to 21.26" (540mm) of precipitation.Snowfall
March through December are months without snowfall in Anderson.Daylight
The average length of the day in September is 12h and 20min.On the first day of the month, sunrise is at 7:01 am and sunset at 7:46 pm. On the last day of September, in Anderson, sunrise is at 7:17 am and sunset at 7:10 pm CDT.
Sunshine
The average sunshine in September is 8.5h.UV index
In Anderson, Texas, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the ordinary person.Note: A daily high UV index of 6 in September leads to these guidelines:
Shield from overexposure. Defense against sun-related harm is required. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Frequently asked questions
Is it hot in Anderson during September?
What is the average humidity in September in Anderson?
How many days does it rain in September in Anderson?
When it does not snow in Anderson?
What is the average length of the day in September in Anderson?
When is the sunrise / sunset in September in Anderson?
How long on average sun shines in September in Anderson?
How high is the UV index in September in Anderson?
Average temperature in September
Anderson, TX
- Average high temperature in September: 88.9°F
The warmest month (with the highest average high temperature) is August (95.5°F).
The month with the lowest average high temperature is January (58.3°F).
- Average low temperature in September: 70°F
The months with the highest average low temperature are July and August (73.9°F).
The coldest month (with the lowest average low temperature) is January (41.9°F).
Average pressure in September
Anderson, TX
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Anderson, TX
- Average wind speed in September: 5.5mph
The windiest month (with the highest average wind speed) is February (7.9mph).
The calmest month (with the lowest average wind speed) is September (5.5mph).
Average humidity in September
Anderson, TX
- Average humidity in September: 73%
The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is August (67%).
Average rainfall in September
Anderson, TX
- Average rainfall in September: 1.26"
The wettest month (with the highest rainfall) is May (3.23").
The driest months (with the least rainfall) are February and July (1.22").
Average rainfall days in September
Anderson, TX
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is March (13.8 days).
The month with the least rainy days is January (8.9 days).
Average snowfall in September
Anderson, TX
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.08").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
Anderson, TX
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January, February and December (0.3 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Anderson, TX
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).
- Average sunshine in September: 8h and 3min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).
Average sunshine days in September
Anderson, TX
- Average sunshine days in September: 15.8 days
The month with the most sunshine days is January (19.7 days).
The month with the least sunshine days is May (13.3 days).
Average UV index in September
Anderson, TX
- Average UV index in September: 6
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in September
Anderson, TX
- Average cloud cover in September: 34
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in September
Anderson, TX
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, August, September, October, November and December (6mi).
The months with the lowest visibility are April, May, June and July (5mi).
Anderson, Texas, USA
Weather forecast for your location
2. Allow the app to use your location
