September weather forecastFluvanna, TX
September
Weather in September
The first month of the autumn, September, is still a tropical month in Fluvanna, Texas, with an average temperature varying between 86.7°F (30.4°C) and 67.5°F (19.7°C).Temperature
As September begins, there is a decrease in the average high-temperature, falling from a sweltering 95.9°F (35.5°C) in August to a tropical 86.7°F (30.4°C). During September, Fluvanna records a consistent average nighttime temperature of 67.5°F (19.7°C).Heat index
During September, the heat index is estimated at a hot 91.4°F (33°C). Undertake enhanced precautions, heat exhaustion and heat cramps are possible risks. Continuous activity could trigger heatstroke.Metrics for the heat index primarily focus on shaded spots and light wind conditions. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'feels like' or 'real feel', gives a temperature feeling by integrating air temperature and humidity. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.
Humidity
The most humid month is September, with an average relative humidity of 55%.Rainfall
The wettest months are June and September, with an average 1.69" (43mm) of rainfall.Snowfall
April through October are months without snowfall.Daylight
In September, the average length of the day is 12h and 22min.On the first day of September, sunrise is at 7:19 am and sunset at 8:08 pm. On the last day of the month, sunrise is at 7:38 am and sunset at 7:30 pm CDT.
Sunshine
In Fluvanna, the average sunshine in September is 8.9h.UV index
In September, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the average person.Note: The daily high UV index of 6 during September translates into the following recommendations:
Resist extreme sun exposure. Guarding against solar damage is essential. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Fluvanna, TX
- Average high temperature in September: 86.7°F
The warmest month (with the highest average high temperature) is August (95.9°F).
The month with the lowest average high temperature is December (55.6°F).
- Average low temperature in September: 67.5°F
The month with the highest average low temperature is July (75.2°F).
The coldest month (with the lowest average low temperature) is January (37°F).
Average pressure in September
Fluvanna, TX
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in September
Fluvanna, TX
- Average wind speed in September: 10.1mph
The windiest month (with the highest average wind speed) is April (13.8mph).
The calmest month (with the lowest average wind speed) is September (10.1mph).
Average humidity in September
Fluvanna, TX
- Average humidity in September: 55%
The month with the highest relative humidity is September (55%).
The month with the lowest relative humidity is April (43%).
Average rainfall in September
Fluvanna, TX
- Average rainfall in September: 1.69"
The wettest months (with the highest rainfall) are June and September (1.69").
The driest month (with the least rainfall) is January (0.31").
Average rainfall days in September
Fluvanna, TX
- Average rainfall days in September: 11.2 days
The month with the highest number of rainy days is September (11.2 days).
The month with the least rainy days is January (3.2 days).
Average snowfall in September
Fluvanna, TX
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.38").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Fluvanna, TX
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (1.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Fluvanna, TX
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in September: 8h and 54min
The months with the most sunshine are June and July (Average sunshine: 11h and 30min).
The months with the least sunshine are November and December (Average sunshine: 6h and 42min).
Average sunshine days in September
Fluvanna, TX
- Average sunshine days in September: 16.4 days
The month with the most sunshine days is January (26.5 days).
The month with the least sunshine days is September (16.4 days).
Average UV index in September
Fluvanna, TX
- Average UV index in September: 6
The months with the highest UV index are May, June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in September
Fluvanna, TX
- Average cloud cover in September: 25
The month with the most cloud cover is September (Cloud cover 25).
The month with the least cloud cover is August (Cloud cover 15).
Average visibility in September
Fluvanna, TX
- 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).





