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
Start of September brings a slight shift in the average high-temperature, dipping a bit from August's very hot 95°F (35°C) to a hot 86.2°F (30.1°C). During September, Gainesville records a consistent average nighttime temperature of 68°F (20°C).Heat index
For September, the heat index is calculated to be a hot 93.2°F (34°C). Take additional safety steps, risk of heat exhaustion and heat cramps is notable. Prolonged activity may cause heatstroke.Heat index's context suggests values are appropriate for shady areas and slight breezes. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', blends air temperature and moisture content to represent the felt temperature to humans. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Juveniles are regularly less conscious of the need to recuperate and rehydrate. Thirst is a tardy symptom of dehydration - hydration, especially during lengthy physical activities, should be maintained.
Humidity
The average relative humidity in September is 65%.Rainfall
In Gainesville, during September, the rain falls for 12.8 days and regularly aggregates up to 3.03" (77mm) of precipitation. In Gainesville, Texas, during the entire year, the rain falls for 130.7 days and collects up to 29.33" (745mm) of precipitation.Snowfall
In Gainesville, snow does not fall in April through October.Daylight
In September, the average length of the day is 12h and 22min.On the first day of September in Gainesville, sunrise is at 7:03 am and sunset at 7:53 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 7:13 pm CDT.
Sunshine
The average sunshine in September in Gainesville is 8.5h.UV index
In Gainesville, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for average individuals.Note: A maximum UV index of 6 in September translates into the following recommendations:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Frequently asked questions
How hot does it get in Gainesville in September?
What is the average humidity in September in Gainesville?
How much does it rain in Gainesville in September?
When it does not snow in Gainesville?
What is the average length of the day in September in Gainesville?
When are sunrise and sunset in September in Gainesville?
How many hours of sunshine does Gainesville have in September?
How high is the UV index in September in Gainesville?
Average temperature in September
Gainesville, TX
- Average high temperature in September: 86.2°F
The warmest month (with the highest average high temperature) is August (95°F).
The month with the lowest average high temperature is January (52.5°F).
- Average low temperature in September: 68°F
The months with the highest average low temperature are July and August (74.3°F).
The coldest month (with the lowest average low temperature) is January (36.1°F).
Average pressure in September
Gainesville, 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 (29.89"Hg).
Average wind speed in September
Gainesville, TX
- Average wind speed in September: 7mph
The windiest months (with the highest average wind speed) are March and April (10.5mph).
The calmest month (with the lowest average wind speed) is September (7mph).
Average humidity in September
Gainesville, TX
- Average humidity in September: 65%
The month with the highest relative humidity is May (75%).
The month with the lowest relative humidity is August (57%).
Average rainfall in September
Gainesville, TX
- Average rainfall in September: 3.03"
The wettest month (with the highest rainfall) is October (3.78").
The driest month (with the least rainfall) is January (1.42").
Average rainfall days in September
Gainesville, TX
- Average rainfall days in September: 12.8 days
The month with the highest number of rainy days is May (14.8 days).
The month with the least rainy days is January (6.7 days).
Average snowfall in September
Gainesville, TX
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.94").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Gainesville, TX
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.8 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Gainesville, TX
- 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: 10h and 0min).
- Average sunshine in September: 8h and 3min
The month with the most sunshine is August (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).
Average sunshine days in September
Gainesville, TX
- Average sunshine days in September: 15.2 days
The month with the most sunshine days is January (22.9 days).
The month with the least sunshine days is May (15.1 days).
Average UV index in September
Gainesville, 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 and December (UV index 3).
Average cloud cover in September
Gainesville, TX
- Average cloud cover in September: 28
The month with the most cloud cover is March (Cloud cover 38).
The month with the least cloud cover is August (Cloud cover 19).
Average visibility in September
Gainesville, 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).
Gainesville, Texas, USA
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