September weather forecast and climate
Guntersville, AL

Weather in September

The first month of the autumn, September, is also a moderately hot month in Guntersville, Alabama, with temperature in the range of an average low of 63°F (17.2°C) and an average high of 82.4°F (28°C).

Temperature

In Guntersville, Alabama, the average high-temperature in September is almost the same as in August - a moderately hot 82.4°F (28°C). The average low-temperature, in Guntersville, is 63°F (17.2°C).

Heat index

The average heat index is appraised at a hot 88.5°F (31.4°C). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.
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 'apparent temperature', 'felt air temperature', 'feels like', or 'real feel', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. Additional factors like clothing, pregnancy, wind, and activity influence one's weather impression. 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 especially crucial for babies and toddlers. 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

The average relative humidity in September is 75%.

Rainfall

In September, in Guntersville, Alabama, the rain falls for 15 days. Throughout September, 2.56" (65mm) of precipitation is 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.

Daylight

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

Sunshine

The average sunshine in Guntersville is 8.7h.

UV index

In September, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected 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. Light skin individuals may get burned in less than 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the temperature in September in Guntersville?

In September, in Guntersville, the average high-temperature is 82.4°F (28°C), and the average low-temperature is 63°F (17.2°C). The average heat index (a.k.a. 'feels like', 'real feel'), that combines both air temperature and relative humidity, in September is appraised at 88.5°F (31.4°C).

What is the average humidity in September in Guntersville?

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

How many days does it rain in September in Guntersville?

In Guntersville, in September, it is raining for 15 days, with typically 2.56" (65mm) of accumulated precipitation.

When it does not snow in Guntersville?

In Guntersville snow does not fall in April through October.

How many hours of daylight does Guntersville have in September?

The average length of the day in September in Guntersville is 12.4h.

How long on average sun shines in September in Guntersville?

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

How high is the UV index in September in Guntersville?

The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate vulnerability from the exposure to the Sun's UV radiation.

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"

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
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").
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).
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: 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 June (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
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

Months with the highest UV index are May, June, July and August (UV index 6).
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).
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

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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