September weather forecast and climate
Ashville, AL

Weather in September

September, the first month of the autumn, in Ashville, is still a warm month, with temperature in the range of an average low of 63.9°F (17.7°C) and an average high of 83.7°F (28.7°C).

Temperature

In September, the average high-temperature is essentially the same as in August - a warm 83.7°F (28.7°C). In Ashville, in September, the average low-temperature is 63.9°F (17.7°C).

Heat index

In September, the average heat index is calculated to a tropical 91°F (32.8°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'feels like', 'real feel', or 'apparent temperature', is a measure of how hot it feels when the actual air humidity is factored in. Additional factors like activity, metabolic differences, differences in body mass, height, and shape, and wind affect individual temperature impact. Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

In Ashville, the average relative humidity is 74%.

Rainfall

September is the month with the least rainfall in Ashville. Rain falls for 12.4 days and accumulates 1.3" (33mm) of precipitation.

Snowfall

In Ashville snow does not fall in April through October.

Daylight

In Ashville, Alabama, the average length of the day in September is 12.4h.

Sunshine

In September, the average sunshine 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 the exposure to the Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 5 transform into the following instructions:
Take precautions - Protection against the skin and eye damage is obliged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the temperature in September in Ashville?

In September, in Ashville, the average high-temperature is 83.7°F (28.7°C), and the average low-temperature is 63.9°F (17.7°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), that takes the relative humidity and factores it into the air temperature reading, in September is estimated at 91°F (32.8°C).

What is the average humidity in September in Ashville?

The average relative humidity in September in Ashville, Alabama, is 74%.

How many days does it rain in September in Ashville?

In Ashville, in September, during 12.4 rainfall days, 1.3" (33mm) of precipitation is typically accumulated.

What is the driest month in Ashville?

September is the month with the least rainfall in Ashville. Rain falls for 12.4 days and accumulates 1.3" (33mm) of precipitation.

When it does not snow in Ashville?

April through October are months without snowfall in Ashville.

What is the average length of the day in September in Ashville?

The average length of the day in September in Ashville, Alabama, is 12.4h.

How long on average sun shines in September in Ashville?

The average sunshine in September in Ashville is 8.7h.

What is the UV index reading in September in Ashville?

In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate vulnerability from the exposure to the Sun's UV rays.

Average temperature in September
Ashville, AL

Average temperature in September - Ashville, AL
  • Average high temperature in September: 83.7°F

The warmest month (with the highest average high temperature) is July (90°F).
The month with the lowest average high temperature is January (49.8°F).

  • Average low temperature in September: 63.9°F

The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (34.3°F).

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Average pressure in September
Ashville, AL

Average pressure in September - Ashville, AL
  • Average pressure in September: 30.02"

The month with the highest atmospheric pressure is January (30.17").
The month with the lowest atmospheric pressure is June (29.98").

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Average wind speed in September
Ashville, AL

Average wind speed in September - Ashville, AL
  • Average wind speed in September: 4.7mph

The windiest months (with the highest average wind speed) are January and February (7.4mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).

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Average humidity in September
Ashville, AL

Average humidity in September - Ashville, 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 (73%).

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Average rainfall in September
Ashville, AL

Average rainfall in September - Ashville, AL
  • Average rainfall in September: 1.3"

The wettest month (with the highest rainfall) is December (2.8").
The driest month (with the least rainfall) is September (1.3").

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Average rainfall days in September
Ashville, AL

Average rainfall days in September - Ashville, AL
  • Average rainfall days in September: 12.4 days

The month with the highest number of rainy days is July (20.1 days).
The month with the least rainy days is November (8.1 days).

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Average snowfall in September
Ashville, AL

Average snowfall in September - Ashville, AL
  • Average snowfall in September: 0"

The month with the highest snowfall is January (0.55").
Months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in September
Ashville, AL

Average snowfall days in September - Ashville, AL
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (1.3 days).
Months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in September /
Average sunshine in September
Ashville, AL

Average daylight in September / Average sunshine in September - Ashville, AL
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.4h).
The month with the shortest days is December (Average daylight: 9.9h).

  • Average sunshine in September: 8.7h

The month with the most sunshine is July (Average sunshine: 10.6h).
The month with the least sunshine is February (Average sunshine: 4.7h).

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Average sunshine days in September
Ashville, AL

Average sunshine days in September - Ashville, AL
  • Average sunshine days in September: 15.8 days

The month with the most sunshine days is October (21 days).
The month with the least sunshine days is July (8.9 days).

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Average UV index in September
Ashville, AL

Average UV index in September - Ashville, AL
  • Average UV index in September: 5

Months with the highest UV index are May, June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 2).

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Average cloud cover in September
Ashville, AL

Average cloud cover in September - Ashville, AL
  • Average cloud cover in September: 30

The month with the most cloud cover is February (Cloud cover 48).
Months with the least cloud cover are June and September (Cloud cover 30).

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Average visibility in September
Ashville, AL

Average visibility in September - Ashville, AL
  • Average visibility in September: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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