September weather forecast
Guntersville, AL

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Weather in September

The first month of the autumn, September, is still a warm month in Guntersville, Alabama, with an average temperature varying between 82.4°F (28°C) and 63°F (17.2°C).

Temperature

The shift to September signals an average high-temperature of a moderately hot 82.4°F (28°C), subtly varied from August's 87.4°F (30.8°C). Throughout the month of September, Guntersville expects an average low of 63°F (17.2°C).

Heat index

In September, the heat index is evaluated at a tropical 87.8°F (31°C). Ongoing activity coupled with exposure often results in weariness and could induce heat cramps.
For clarity, heat index numbers account for light winds and areas under shade. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'feels like' or 'real feel', represents the fusion of temperature and moisture in the air to suggest how warm it feels. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.

Humidity

In September, the average relative humidity is 75%.

Rainfall

In Guntersville, in September, during 15 rainfall days, 2.56" (65mm) of precipitation is typically accumulated. Throughout the year, there are 179.7 rainfall days, and 41.89" (1064mm) of precipitation is accumulated.

Snowfall

April through October are months without snowfall in Guntersville.

Daylight

In Guntersville, the average length of the day in September is 12h and 23min.
On the first day of September, sunrise is at 6:19 am and sunset at 7:10 pm. On the last day of the month, sunrise is at 6:39 am and sunset at 6:30 pm CDT.

Sunshine

In Guntersville, Alabama, the average sunshine in September is 8.7h.

UV index

In Guntersville, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index of 5 in September interprets into the following recommendations:
Guard yourself - Precautionary measures against sun damage are advocated. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Boost your sun resistance with garments that are densely woven yet spacious.
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Frequently asked questions

How hot is it in Guntersville in September?

The high-temperature during September is 82.4°F (28°C) and the low-temperature is 63°F (17.2°C). In September, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines air temperature and relative humidity, is evaluated at 87.8°F (31°C).

What is the average humidity in September in Guntersville?

In September, the average relative humidity in Guntersville is 75%.

How much does it rain in Guntersville in September?

In Guntersville, Alabama, in September, during 15 rainfall days, 2.56" (65mm) of precipitation is typically accumulated.

When it does not snow in Guntersville?

April through October are months without snowfall in Guntersville, Alabama.

How many hours of daylight does Guntersville have in September?

The average day length in September in Guntersville, Alabama, is 12h and 23min.

When is the sunrise / sunset in September in Guntersville?

On the first day of September, sunrise is at 6:19 am and sunset at 7:10 pm. On the last day of the month, sunrise is at 6:39 am and sunset at 6:30 pm CDT.

How many hours of sunshine does Guntersville have in September?

In Guntersville, the average sunshine duration in September is 8.7h.

What is the UV index intensity in September in Guntersville?

In September, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a medium hazard to health from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Guntersville, AL

Average temperature in September - Guntersville, AL
  • Average high temperature in September: 82.4°F

The warmest month (with the highest average high temperature) is July (88.2°F).
The month with the lowest average high temperature is January (48.6°F).

  • Average low temperature in September: 63°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).

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Average pressure in September
Guntersville, AL

Average pressure in September - Guntersville, 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).

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Average wind speed in September
Guntersville, AL

Average wind speed in September - Guntersville, AL
  • Average wind speed in September: 4.9mph

The windiest month (with the highest average wind speed) is February (7.8mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).

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Average humidity in September
Guntersville, AL

Average humidity in September - Guntersville, AL
  • Average humidity in September: 75%

The month with the highest relative humidity is December (81%).
The month with the lowest relative humidity is October (74%).

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Average rainfall in September
Guntersville, AL

Average rainfall in September - Guntersville, AL
  • Average rainfall in September: 2.56"

The wettest month (with the highest rainfall) is December (4.45").
The driest month (with the least rainfall) is October (2.48").

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Average rainfall days in September
Guntersville, AL

Average rainfall days in September - Guntersville, AL
  • Average rainfall days in September: 15 days

The month with the highest number of rainy days is July (20.8 days).
The month with the least rainy days is November (10.3 days).

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Average snowfall in September
Guntersville, AL

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

The month with the highest snowfall is January (0.83").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in September
Guntersville, AL

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

The month with the highest number of snowfall days is February (1.9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - Guntersville, AL
  • 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: 9h and 54min).

  • Average sunshine in September: 8h and 4min

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).

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Average sunshine days in September
Guntersville, AL

Average sunshine days in September - Guntersville, AL
  • Average sunshine days in September: 12.9 days

The month with the most sunshine days is October (19 days).
The month with the least sunshine days is July (8.6 days).

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Average UV index in September
Guntersville, AL

Average UV index in September - Guntersville, 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).

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Average cloud cover in September
Guntersville, AL

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

The month with the most cloud cover is February (Cloud cover 49).
The months with the least cloud cover are June and September (Cloud cover 30).

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Average visibility in September
Guntersville, AL

Average visibility in September - Guntersville, AL
  • 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).

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Guntersville, Alabama, USA

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