September weather forecastVestavia, NC
September
Weather in September
September, the first month of the autumn in Vestavia, is also a moderately hot month, with an average temperature fluctuating between 82.4°F (28°C) and 61.7°F (16.5°C).Temperature
September witnesses a gentle descent in average high-temperature, descending from August's hot 88.3°F (31.3°C) to a warm 82.4°F (28°C). Vestavia experiences a mean low-temperature of 61.7°F (16.5°C) during September.Heat index
The average heat index in September is estimated at a hot 87.8°F (31°C). Continuous exposure and activity could induce a sense of tiredness and subsequently, heat cramps.Know that the heat index computations account for shaded terrains and slight winds. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'real feel', binds temperature metrics with humidity values to give a sense of the actual warmth. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.
Humidity
In Vestavia, North Carolina, the average relative humidity in September is 74%.Rainfall
September and October are months with the least rain in Vestavia when the rain falls for 12.5 days and typically aggregates up to 2.13" (54mm) of rain.Snowfall
April through October are months without snowfall in Vestavia.Daylight
In September, the average length of the day in Vestavia is 12h and 23min.On the first day of September, sunrise is at 6:58 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 7:10 pm EDT.
Sunshine
In Vestavia, the average sunshine in September is 8.6h.UV index
In September, the average daily maximum UV index in Vestavia, North Carolina, is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: The UV index of 5 in September translates into these instructions:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Vestavia, NC
- Average high temperature in September: 82.4°F
The warmest month (with the highest average high temperature) is July (90.3°F).
The month with the lowest average high temperature is January (47.8°F).
- Average low temperature in September: 61.7°F
The month with the highest average low temperature is July (68.2°F).
The coldest month (with the lowest average low temperature) is January (32.2°F).
Average pressure in September
Vestavia, NC
- Average pressure in September: 30.04"Hg
The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in September
Vestavia, NC
- Average wind speed in September: 4.7mph
The windiest month (with the highest average wind speed) is April (6.8mph).
The calmest month (with the lowest average wind speed) is August (4mph).
Average humidity in September
Vestavia, NC
- Average humidity in September: 74%
The months with the highest relative humidity are May and December (76%).
The month with the lowest relative humidity is July (70%).
Average rainfall in September
Vestavia, NC
- Average rainfall in September: 2.13"
The wettest month (with the highest rainfall) is December (3.46").
The driest months (with the least rainfall) are September and October (2.13").
Average rainfall days in September
Vestavia, NC
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is July (18.2 days).
The month with the least rainy days is November (9.9 days).
Average snowfall in September
Vestavia, NC
- Average snowfall in September: 0"
The month with the highest snowfall is December (2.36").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Vestavia, NC
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2 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
Vestavia, NC
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in September: 8h and 36min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).
Average sunshine days in September
Vestavia, NC
- Average sunshine days in September: 16.1 days
The month with the most sunshine days is October (19.8 days).
The month with the least sunshine days is July (10.3 days).
Average UV index in September
Vestavia, NC
- 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
Vestavia, NC
- Average cloud cover in September: 33
The months with the most cloud cover are February, March and December (Cloud cover 42).
The months with the least cloud cover are June and July (Cloud cover 29).
Average visibility in September
Vestavia, NC
- 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).
