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
As August shifts into September, a minor alteration in temperatures is observed, with average highs reducing from a torrid 95.2°F (35.1°C) to a tropical 88.5°F (31.4°C). September witnesses an average low-temperature hovering around a refreshing 67.8°F (19.9°C).Heat index
The average heat index in September is estimated at a fiery hot 100.4°F (38°C). Extra precautions are necessary, heat cramps and heat exhaustion are plausible outcomes. Extended activity could lead to heatstroke.Given the heat index, its values are aligned with shaded sites and gentle winds. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is the result of factoring in humidity to the air temperature, indicating perceived warmth. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. Increased relative humidity slows down evaporation, thereby decreasing the rate of heat removal from the body, culminating in a sensation of overheating. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.
Humidity
In September, the average relative humidity is 69%.Rainfall
In Frankston, during September, the rain falls for 15 days and regularly aggregates up to 2.4" (61mm) of precipitation. Throughout the year, there are 147.8 rainfall days, and 30.98" (787mm) of precipitation is accumulated.Snowfall
April through December are months without snowfall.Daylight
The average length of the day in September is 12h and 21min.On the first day of September, sunrise is at 6:57 am and sunset at 7:45 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 7:07 pm CDT.
Sunshine
In Frankston, the average sunshine in September is 8.8h.UV index
In Frankston, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the ordinary person.Note: In September, a daily UV index of 6 turns into the following recommendations:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it 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 Frankston have in September?
What is the UV index reading in September?
Average temperature in September
Frankston, TX
- Average high temperature in September: 88.5°F
The warmest month (with the highest average high temperature) is August (95.2°F).
The month with the lowest average high temperature is January (55°F).
- Average low temperature in September: 67.8°F
The month with the highest average low temperature is August (73.6°F).
The coldest month (with the lowest average low temperature) is January (39°F).
Average pressure in September
Frankston, 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 (29.92"Hg).
Average wind speed in September
Frankston, TX
- Average wind speed in September: 5.5mph
The windiest month (with the highest average wind speed) is March (7.8mph).
The calmest month (with the lowest average wind speed) is September (5.5mph).
Average humidity in September
Frankston, TX
- Average humidity in September: 69%
The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is August (65%).
Average rainfall in September
Frankston, TX
- Average rainfall in September: 2.4"
The wettest month (with the highest rainfall) is October (3.78").
The driest month (with the least rainfall) is January (1.89").
Average rainfall days in September
Frankston, TX
- Average rainfall days in September: 15 days
The month with the highest number of rainy days is September (15 days).
The month with the least rainy days is January (9 days).
Average snowfall in September
Frankston, TX
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.63").
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
Frankston, 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
Frankston, TX
- Average daylight in September: 12h and 2min
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 5min
The month with the most sunshine is August (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).
Average sunshine days in September
Frankston, TX
- Average sunshine days in September: 13.2 days
The month with the most sunshine days is January (20.7 days).
The month with the least sunshine days is September (13.2 days).
Average UV index in September
Frankston, 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
Frankston, TX
- Average cloud cover in September: 31
The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in September
Frankston, TX
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
Frankston, Texas, USA
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