September weather forecast and climate
Highmound, AL

Weather in September

The first month of the autumn, September, is still a warm month in Highmound, Alabama, with average temperature ranging between min 63.7°F (17.6°C) and max 82.8°F (28.2°C).

Temperature

In September, the average high-temperature is practically the same as in August - a warm 82.8°F (28.2°C). The average low-temperature, in September, is 63.7°F (17.6°C).

Heat index

The average heat index is evaluated at a hot 89.2°F (31.8°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. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature', 'felt air temperature', 'real feel', or 'feels like', is a measure of how hot it feels when the actual air humidity is factored in. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (pregnancy, metabolic differences, clothing). Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

The average relative humidity in Highmound is 75%.

Rainfall

In September, the rain falls for 14.8 days. Throughout September, 2.64" (67mm) of precipitation is accumulated. Throughout the year, in Highmound, Alabama, there are 177.4 rainfall days, and 41.42" (1052mm) of precipitation is accumulated.

Snowfall

April through October are months without snowfall.

Daylight

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

Sunshine

The average sunshine in Highmound, Alabama, is 8.6h.

UV index

The average daily maximum UV index in Highmound is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to the UV radiation for the ordinary person.
Note: The daily maximum UV index of 5 interpret into the following advice:
Take precautions - Protection against sun damage is advised. 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 Highmound?

In Highmound, in September, the average high-temperature is 82.8°F (28.2°C), and the average low-temperature is 63.7°F (17.6°C). In September, the average heat index (a.k.a. 'apparent temperature', 'real feel'), that factores the actual air temperature with the relative humidity, is estimated at 89.2°F (31.8°C).

What is the average humidity in September in Highmound?

The average relative humidity in September in Highmound is 75%.

How much does it rain in Highmound in September?

In Highmound, in September, it is raining for 14.8 days, with typically 2.64" (67mm) of accumulated precipitation.

When it does not snow in Highmound?

In Highmound, Alabama, snow does not fall in April through October.

How many hours of daylight does Highmound have in September?

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

How long on average sun shines in September in Highmound?

In September, the average sunshine in Highmound is 8.6h.

What is the UV index intensity in September in Highmound?

In September, the average daily maximum UV index in Highmound is 5. A UV Index of 3 to 5 symbolizes a moderate vulnerability from unprotected exposure to the UV radiation.

Average temperature in September
Highmound, AL

Average temperature in September - Highmound, AL
  • Average high temperature in September: 82.8°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: 63.7°F

The month with the highest average low temperature is July (69.3°F).
The coldest month (with the lowest average low temperature) is January (34°F).

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Average pressure in September
Highmound, AL

Average pressure in September - Highmound, 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
Highmound, AL

Average wind speed in September - Highmound, AL
  • Average wind speed in September: 5mph

The windiest months (with the highest average wind speed) are January, February and March (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
Highmound, AL

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

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Average rainfall in September
Highmound, AL

Average rainfall in September - Highmound, AL
  • Average rainfall in September: 2.64"

The wettest month (with the highest rainfall) is December (4.21").
The driest month (with the least rainfall) is October (2.32").

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Average rainfall days in September
Highmound, AL

Average rainfall days in September - Highmound, AL
  • Average rainfall days in September: 14.8 days

The month with the highest number of rainy days is July (20.9 days).
The month with the least rainy days is November (8.7 days).

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Average snowfall in September
Highmound, AL

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

The month with the highest snowfall is January (0.63").
Months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in September
Highmound, AL

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

The month with the highest number of snowfall days is February (1.4 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
Highmound, AL

Average daylight in September / Average sunshine in September - Highmound, 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: 8.6h

The month with the most sunshine is June (Average sunshine: 10.4h).
The month with the least sunshine is February (Average sunshine: 4.6h).

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Average sunshine days in September
Highmound, AL

Average sunshine days in September - Highmound, AL
  • Average sunshine days in September: 13.2 days

The month with the most sunshine days is November (20 days).
The month with the least sunshine days is July (8.4 days).

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Average UV index in September
Highmound, AL

Average UV index in September - Highmound, 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
Highmound, AL

Average cloud cover in September - Highmound, AL
  • Average cloud cover in September: 31

The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is September (Cloud cover 31).

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Average visibility in September
Highmound, AL

Average visibility in September - Highmound, 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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