September weather forecastMountain Acres, AL
September
Weather in September
September, the first month of the autumn in Mountain Acres, is also a moderately hot month, with an average temperature varying between 82.9°F (28.3°C) and 62.6°F (17°C).Temperature
With the transition into September, Mountain Acres notes an average high-temperature of a warm 82.9°F (28.3°C), closely resembling August. An average temperature of 62.6°F (17°C) marks the nights in September.Heat index
Throughout September, the heat index is calculated to be a hot 89.6°F (32°C). Prolonged exposure and physical activity might induce exhaustion, potentially causing heat cramps.Be aware that heat index ratings are designed for shaded locations and minor breezes. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', combines air temperature and relative humidity to represent a human perceived temperature equivalent. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.
Humidity
The average relative humidity in September is 75%.Rainfall
In Mountain Acres, in September, it is raining for 14.2 days, with typically 2.72" (69mm) of accumulated precipitation. Throughout the year, there are 181.2 rainfall days, and 41.06" (1043mm) of precipitation is accumulated.Snowfall
In Mountain Acres, snow does not fall in April through October.Daylight
The average length of the day in September is 12h and 23min.On the first day of the month, sunrise is at 6:16 am and sunset at 7:07 pm. On the last day of September, sunrise is at 6:36 am and sunset at 6:27 pm CDT.
Sunshine
In September, the average sunshine in Mountain Acres is 8.5h.UV index
In Mountain Acres, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the average person.Note: In September, the maximum UV index of 5 translates into these guidelines:
Undertake precautions - Guarding against sun damage is counselled. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Mountain Acres, AL
- Average high temperature in September: 82.9°F
The warmest month (with the highest average high temperature) is July (88.7°F).
The month with the lowest average high temperature is January (48.9°F).
- Average low temperature in September: 62.6°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (33.4°F).
Average pressure in September
Mountain Acres, AL
- Average pressure in September: 30.02"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
Mountain Acres, AL
- Average wind speed in September: 4.5mph
The windiest month (with the highest average wind speed) is February (7.3mph).
The calmest month (with the lowest average wind speed) is August (4.1mph).
Average humidity in September
Mountain Acres, AL
- Average humidity in September: 75%
The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (74%).
Average rainfall in September
Mountain Acres, AL
- Average rainfall in September: 2.72"
The wettest months (with the highest rainfall) are February and December (4.06").
The driest month (with the least rainfall) is October (2.56").
Average rainfall days in September
Mountain Acres, AL
- Average rainfall days in September: 14.2 days
The month with the highest number of rainy days is July (21.1 days).
The month with the least rainy days is November (9.8 days).
Average snowfall in September
Mountain Acres, AL
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.79").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Mountain Acres, AL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Mountain Acres, AL
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in September: 8h and 30min
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 48min).
Average sunshine days in September
Mountain Acres, AL
- Average sunshine days in September: 13.4 days
The month with the most sunshine days is October (19.1 days).
The month with the least sunshine days is July (8 days).
Average UV index in September
Mountain Acres, 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 and December (UV index 2).
Average cloud cover in September
Mountain Acres, AL
- 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 June (Cloud cover 30).
Average visibility in September
Mountain Acres, AL
- Average visibility in September: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and December (5mi).
