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
Transitioning into September, Bellefontaine records an average high-temperature of a moderately hot 85.6°F (29.8°C), almost identical to August's 90.7°F (32.6°C). Bellefontaine experiences a consistent average temperature of 65.5°F (18.6°C) throughout the nights in September.Heat index
September's heat index is estimated at a very hot 95°F (35°C). Adopt enhanced safety measures, heat exhaustion and heat cramps could occur. Continuous activity may induce heatstroke.Metrics for the heat index primarily focus on shaded spots and light wind conditions. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', combines both the air temperature and the humidity level to give a perceived human temperature. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.
In the face of high temperatures, the human body's reflex is to perspire, leveraging sweat evaporation for cooling. Higher relative humidity impedes evaporation, thus reducing heat dispersion from the body, culminating in a sensation of overheating. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.
Humidity
The average relative humidity in September is 72%.Rainfall
In Bellefontaine, during September, the rain falls for 13.5 days and regularly aggregates up to 2.36" (60mm) of precipitation. Throughout the year, there are 155 rainfall days, and 33.07" (840mm) of precipitation is accumulated.Snowfall
In Bellefontaine, snow does not fall in April through October.Daylight
The average length of the day in September is 12h and 22min.On the first day of the month, sunrise is at 6:31 am and sunset at 7:22 pm. On the last day of September, sunrise is at 6:51 am and sunset at 6:42 pm CDT.
Sunshine
In September, the average sunshine is 9.4h.UV index
In Bellefontaine, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the average person.Note: The UV index of 5 during September leads to these advisories:
Take necessary precautions - Protection from skin and eye injury is mandatory. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot during September?
What is the average humidity in September?
How much does it rain in Bellefontaine in September?
When it does not snow?
How many hours of daylight does Bellefontaine have in September?
When are sunrise and sunset in September?
How many hours of sunshine does Bellefontaine have in September?
What is the UV index intensity in September?
Average temperature in September
Bellefontaine, MS
- Average high temperature in September: 85.6°F
The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (51.3°F).
- Average low temperature in September: 65.5°F
The month with the highest average low temperature is July (71.1°F).
The coldest month (with the lowest average low temperature) is January (36.1°F).
Average pressure in September
Bellefontaine, MS
- Average pressure in September: 30"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in September
Bellefontaine, MS
- Average wind speed in September: 5.2mph
The windiest month (with the highest average wind speed) is April (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in September
Bellefontaine, MS
- Average humidity in September: 72%
The month with the highest relative humidity is December (81%).
The month with the lowest relative humidity is October (71%).
Average rainfall in September
Bellefontaine, MS
- Average rainfall in September: 2.36"
The wettest month (with the highest rainfall) is July (3.39").
The driest month (with the least rainfall) is November (1.69").
Average rainfall days in September
Bellefontaine, MS
- Average rainfall days in September: 13.5 days
The month with the highest number of rainy days is July (18.9 days).
The month with the least rainy days is November (8.3 days).
Average snowfall in September
Bellefontaine, MS
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.47").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Bellefontaine, MS
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (1.3 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
Bellefontaine, MS
- 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: 9h and 2min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in September
Bellefontaine, MS
- Average sunshine days in September: 15.1 days
The month with the most sunshine days is October (20.6 days).
The month with the least sunshine days is July (9.6 days).
Average UV index in September
Bellefontaine, MS
- Average UV index in September: 5
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in September
Bellefontaine, MS
- Average cloud cover in September: 28
The months with the most cloud cover are February and December (Cloud cover 49).
The month with the least cloud cover is September (Cloud cover 28).
Average visibility in September
Bellefontaine, MS
- 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).
Bellefontaine, Mississippi, USA
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