September weather forecastGallatin, TX
September
Weather in September
September, the first month of the autumn in Gallatin, is still a hot month, with an average temperature ranging between min 67.8°F (19.9°C) and max 88.9°F (31.6°C).Temperature
The onset of September aligns with a soft reduction in the average high-temperature, gently falling from a fiery hot 95.4°F (35.2°C) in August to a tropical 88.9°F (31.6°C). Gallatin experiences a nighttime temperature average of 67.8°F (19.9°C) during September.Heat index
The heat index for September is appraised at a sweltering 102.2°F (39°C). Take more caution, heat exhaustion and heat cramps may occur. Long-lasting activity may cause heatstroke.Heat index values are typically calculated for conditions of shade and a light breeze. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', quantifies the warmth felt when relative humidity is considered. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
The natural cooling mechanism in humans involves perspiration, where the evaporation of sweat balances out excessive warmth. Greater relative humidity lessens the rate of evaporation, thus decreasing the body's heat dispersal, which gives rise to a sensation of overheating. Overheating and potential dehydration arise when body heat gain eclipses its release capability.
Humidity
In Gallatin, the average relative humidity in September is 70%.Rainfall
In Gallatin, during September, the rain falls for 14.1 days and regularly aggregates up to 2.24" (57mm) of precipitation. Throughout the year, there are 149.1 rainfall days, and 32.32" (821mm) of precipitation is accumulated.Snowfall
In Gallatin, snow does not fall in March through December.Daylight
In September, the average length of the day in Gallatin is 12h and 21min.On the first day of September, sunrise is at 6:56 am and sunset at 7:44 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 7:06 pm CDT.
Sunshine
In September, the average sunshine in Gallatin is 8.8h.UV index
In Gallatin, Texas, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: The maximum daily UV index, 6 in September, converts into the following recommendations:
Guard oneself from overexposure. Defence against sun injury is vital. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Gallatin, TX
- Average high temperature in September: 88.9°F
The warmest month (with the highest average high temperature) is August (95.4°F).
The month with the lowest average high temperature is January (55.4°F).
- Average low temperature in September: 67.8°F
The month with the highest average low temperature is August (73.2°F).
The coldest month (with the lowest average low temperature) is January (39.2°F).
Average pressure in September
Gallatin, 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 (29.92"Hg).
Average wind speed in September
Gallatin, TX
- Average wind speed in September: 5.3mph
The windiest month (with the highest average wind speed) is April (7.5mph).
The calmest month (with the lowest average wind speed) is September (5.3mph).
Average humidity in September
Gallatin, TX
- Average humidity in September: 70%
The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is August (66%).
Average rainfall in September
Gallatin, TX
- Average rainfall in September: 2.24"
The wettest month (with the highest rainfall) is October (3.74").
The driest months (with the least rainfall) are July and August (1.89").
Average rainfall days in September
Gallatin, TX
- Average rainfall days in September: 14.1 days
The month with the highest number of rainy days is May (14.4 days).
The month with the least rainy days is January (9.3 days).
Average snowfall in September
Gallatin, TX
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.51").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
Gallatin, TX
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (0.8 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
Gallatin, TX
- Average daylight in September: 12h and 24min
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 48min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days in September
Gallatin, TX
- Average sunshine days in September: 14 days
The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is February (13.6 days).
Average UV index in September
Gallatin, 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
Gallatin, TX
- Average cloud cover in September: 32
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in September
Gallatin, TX
- Average visibility in September: 6mi
The months with the highest visibility are January, March, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are February, April and May (5mi).





