September weather forecastFayetteville, AL
September
Weather in September
September, the first month of the autumn in Fayetteville, is also a moderately hot month, with an average temperature fluctuating between 65.3°F (18.5°C) and 84.7°F (29.3°C).Temperature
The arrival of September records an average high-temperature of a warm 84.7°F (29.3°C), closely related to the 89.4°F (31.9°C) observed in August. Fayetteville, during the month of September, experiences an average low-temperature of 65.3°F (18.5°C).Heat index
Throughout September, the heat index is computed to be a hot 93.2°F (34°C). More protective measures are required - heat exhaustion and heat cramps are likely. Heatstroke may follow lengthy activity.Know that the heat index computations account for shaded terrains and slight winds. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
Humidity
The average relative humidity in September is 74%.Rainfall
The month with the least rainfall in Fayetteville is September, when the rain falls for 9.2 days and typically collects 0.59" (15mm) of precipitation.Snowfall
March 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 6:20 am and sunset at 7:10 pm. On the last day of the month, sunrise is at 6:39 am and sunset at 6:31 pm CDT.
Sunshine
The average sunshine in September is 8.7h.UV index
The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: An average maximum UV index of 5 in September leads to these recommendations:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Fayetteville, AL
- Average high temperature in September: 84.7°F
The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is January (51.6°F).
- Average low temperature in September: 65.3°F
The month with the highest average low temperature is July (69.8°F).
The coldest month (with the lowest average low temperature) is January (35.8°F).
Average pressure in September
Fayetteville, AL
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in September
Fayetteville, AL
- Average wind speed in September: 4.8mph
The windiest month (with the highest average wind speed) is February (7.5mph).
The calmest months (with the lowest average wind speed) are July and August (4.3mph).
Average humidity in September
Fayetteville, AL
- Average humidity in September: 74%
The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (72%).
Average rainfall in September
Fayetteville, AL
- Average rainfall in September: 0.59"
The wettest month (with the highest rainfall) is August (1.57").
The driest month (with the least rainfall) is September (0.59").
Average rainfall days in September
Fayetteville, AL
- Average rainfall days in September: 9.2 days
The month with the highest number of rainy days is July (17.1 days).
The month with the least rainy days is November (5.5 days).
Average snowfall in September
Fayetteville, AL
- Average snowfall in September: 0"
The months with the highest snowfall are January and December (0.12").
The months with the least snowfall are March, April, May, June, July, August, September and October (0").
Average snowfall days in September
Fayetteville, AL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.8 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
Fayetteville, AL
- 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 42min
The months with the most sunshine are June and July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days in September
Fayetteville, AL
- Average sunshine days in September: 17.9 days
The month with the most sunshine days is November (23.3 days).
The month with the least sunshine days is July (10.9 days).
Average UV index in September
Fayetteville, AL
- Average UV index in September: 5
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in September
Fayetteville, AL
- Average cloud cover in September: 31
The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is October (Cloud cover 30).
Average visibility in September
Fayetteville, AL
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
