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
Anderson's progression into September involves a minor drop in the average high-temperature, slightly receding from a sweltering 95.5°F (35.3°C) in August to a tropical 88.9°F (31.6°C). Anderson experiences a mean low-temperature of 70°F (21.1°C) during September.Heat index
The average heat index in September is computed to be an extremely hot 104°F (40°C). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.When assessing, remember that heat index measurements are for light winds and shaded spots. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'feels like' or 'felt air temperature', binds temperature metrics with humidity values to give a sense of the actual warmth. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
The body's inherent cooling system operates through perspiration, wherein evaporating sweat offsets excessive heat. During conditions of high air temperature and humidity (high heat index), the body's ability to perspire is inhibited, increasing the sensation of warmth. Excessive heat that's not properly managed leads to increased body temperatures and resultant health issues.
Humidity
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. Throughout the year, there are 133.8 rainfall days, and 21.26" (540mm) of precipitation is accumulated.Snowfall
March through December are months without snowfall.Daylight
The average length of the day in September is 12h and 20min.On the first day of September, sunrise is at 7:01 am and sunset at 7:46 pm. On the last day of the month, 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, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for the ordinary person.Note: In September, the average maximum UV index of 6 translates into the following recommendations:
Enforce precautions and stick to sun safety measures. Preservation from skin and eye damage is essential. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in 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 are sunrise and sunset in September?
How many hours of sunshine does Anderson have in September?
What is the UV index intensity in September?
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
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