September weather forecast
McMullen, AL

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Weather in September

September, the first month of the autumn in McMullen, is still a tropical month, with an average temperature fluctuating between 66.7°F (19.3°C) and 86.7°F (30.4°C).

Temperature

The transition into September is marked with an average high-temperature of a still tropical 86.7°F (30.4°C), showing an insignificant shift from August's 91.4°F (33°C). McMullen's average low-temperature for the month of September records at a comfortable 66.7°F (19.3°C).

Heat index

The heat index in September is estimated at a sweltering 98.6°F (37°C). Additional precautions are required to avert heat cramps and heat exhaustion. Persistent activity may culminate in heatstroke.
Records show heat index calculations are tailored for shaded regions and mild winds. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.
The process of perspiration is vital for the human body to get rid of excess warmth by allowing sweat to evaporate. An increase in relative humidity retards evaporation, subsequently reducing the body's heat removal rate and leading to a sensation of being overly warm. Accumulating heat beyond the body's cooling measures leads to rising temperatures and potential ailments.

Humidity

In September, the average relative humidity is 72%.

Rainfall

In September, in McMullen, the rain falls for 12.6 days. Throughout September, 2.44" (62mm) of precipitation is accumulated. Throughout the year, there are 168.1 rainfall days, and 40.94" (1040mm) of precipitation is accumulated.

Snowfall

In McMullen, Alabama, snow does not fall in March through October.

Daylight

In McMullen, the average length of the day in September is 12h and 22min.
On the first day of September, sunrise is at 6:27 am and sunset at 7:17 pm. On the last day of the month, sunrise is at 6:46 am and sunset at 6:38 pm CDT.

Sunshine

In September, the average sunshine in McMullen is 9.3h.

UV index

The average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: In September, the maximum UV index of 6 suggests this advice:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
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Frequently asked questions

How hot is it in McMullen in September?

The high-temperature, in September, in McMullen, is 86.7°F (30.4°C), while the low-temperature averages to 66.7°F (19.3°C). In September, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines relative humidity and air temperature, is estimated at 98.6°F (37°C).

What is the average humidity in September in McMullen?

The average relative humidity in September in McMullen, Alabama, is 72%.

How much does it rain in McMullen in September?

In McMullen, Alabama, in September, during 12.6 rainfall days, 2.44" (62mm) of precipitation is typically accumulated.

When it does not snow in McMullen?

March through October are months without snowfall.

How many hours of daylight does McMullen have in September?

In September, the average day length in McMullen, Alabama, is 12h and 22min.

When are sunrise and sunset in September in McMullen?

On the first day of September in McMullen, sunrise is at 6:27 am and sunset at 7:17 pm. On the last day of the month, sunrise is at 6:46 am and sunset at 6:38 pm CDT.

How long on average sun shines in September in McMullen?

In McMullen, Alabama, the average sunshine duration in September is 9.3h.

What is the UV index intensity in September in McMullen?

The average daily maximum UV index in September in McMullen is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to UV radiation.
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
McMullen, AL

Average temperature in September - McMullen, AL
  • Average high temperature in September: 86.7°F

The warmest month (with the highest average high temperature) is July (91.8°F).
The month with the lowest average high temperature is January (52.5°F).

  • Average low temperature in September: 66.7°F

The month with the highest average low temperature is July (71.6°F).
The coldest month (with the lowest average low temperature) is January (37°F).

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Average pressure in September
McMullen, AL

Average pressure in September - McMullen, AL
  • Average pressure in September: 30"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).

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Average wind speed in September
McMullen, AL

Average wind speed in September - McMullen, AL
  • Average wind speed in September: 5.2mph

The windiest months (with the highest average wind speed) are January, February and March (7.5mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).

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Average humidity in September
McMullen, AL

Average humidity in September - McMullen, AL
  • Average humidity in September: 72%

The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (70%).

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Average rainfall in September
McMullen, AL

Average rainfall in September - McMullen, AL
  • Average rainfall in September: 2.44"

The wettest month (with the highest rainfall) is April (4.57").
The driest month (with the least rainfall) is October (2.4").

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Average rainfall days in September
McMullen, AL

Average rainfall days in September - McMullen, AL
  • Average rainfall days in September: 12.6 days

The month with the highest number of rainy days is July (20.2 days).
The month with the least rainy days is November (8.6 days).

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Average snowfall in September
McMullen, AL

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

The month with the highest snowfall is January (0.35").
The months with the least snowfall are March, April, May, June, July, August, September and October (0").

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Average snowfall days in September
McMullen, AL

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

The month with the highest number of snowfall days is January (1.1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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

Average daylight in September / Average sunshine in September - McMullen, AL
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in September: 9h and 2min

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 48min).

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Average sunshine days in September
McMullen, AL

Average sunshine days in September - McMullen, AL
  • Average sunshine days in September: 15.9 days

The month with the most sunshine days is November (20.2 days).
The month with the least sunshine days is July (9 days).

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Average UV index in September
McMullen, AL

Average UV index in September - McMullen, AL
  • Average UV index in September: 6

The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).

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Average cloud cover in September
McMullen, AL

Average cloud cover in September - McMullen, AL
  • Average cloud cover in September: 28

The months with the most cloud cover are February and December (Cloud cover 47).
The month with the least cloud cover is September (Cloud cover 28).

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Average visibility in September
McMullen, AL

Average visibility in September - McMullen, 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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McMullen, Alabama, USA

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