September weather forecast and climate
Turnbull, AL

Weather in September

The first month of the autumn, September, is still a tropical month in Turnbull, Alabama, with average temperature fluctuating between 68°F (20°C) and 88°F (31.1°C).

Temperature

In September, the average high-temperature is almost the same as in August - a still hot 88°F (31.1°C). In Turnbull, the average low-temperature is 68°F (20°C).

Heat index

In September, the average heat index is appraised at a sweltering 103.1°F (39.5°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
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 'feels like', 'real feel', 'apparent temperature', or 'felt air temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. This effect is individual, with diverse people perceiving weather differently for numerous reasons (pregnancy, differences in body mass, height, and shape, wind), and activity. 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.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

The average relative humidity in Turnbull is 75%.

Rainfall

In Turnbull, during 17 rainfall days, 2.52" (64mm) of precipitation is typically accumulated. In Turnbull, during the entire year, the rain falls for 174.1 days and collects up to 36.02" (915mm) of precipitation.

Snowfall

April through November are months without snowfall in Turnbull.

Daylight

In September, the average length of the day is 12.3h.

Sunshine

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

UV index

In Turnbull, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to the UV radiation for ordinary individuals.
Note: In September, the average maximum UV index of 6 translate into the following recommendations:
Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. 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 Turnbull?

The average high-temperature, in September, in Turnbull, Alabama, is 88°F (31.1°C), while the average low-temperature is 68°F (20°C). In September, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), that calculates temperature value influenced by the moisture in the air, is evaluated at 103.1°F (39.5°C).

What is the average humidity in September in Turnbull?

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

How much does it rain in Turnbull in September?

In Turnbull, Alabama, during September, the rain falls for 17 days and regularly aggregates up to 2.52" (64mm) of precipitation.

When it does not snow in Turnbull?

In Turnbull, Alabama, snow does not fall in April through November.

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

The average length of the day in September in Turnbull is 12.3h.

How many hours of sunshine does Turnbull have in September?

The average sunshine in September is 8.7h.

What is the UV index reading in September in Turnbull?

In Turnbull, Alabama, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health from unsafe exposure to the Sun's UV rays.

Average temperature in September
Turnbull, AL

Average temperature in September - Turnbull, AL
  • Average high temperature in September: 88°F

The warmest month (with the highest average high temperature) is July (92.3°F).
The month with the lowest average high temperature is January (56.8°F).

  • Average low temperature in September: 68°F

Months with the highest average low temperature are July and August (72.1°F).
The coldest month (with the lowest average low temperature) is January (38.8°F).

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Average pressure in September
Turnbull, AL

Average pressure in September - Turnbull, AL
  • Average pressure in September: 29.98"

The month with the highest atmospheric pressure is January (30.16").
Months with the lowest atmospheric pressure are June and August (29.97").

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Average wind speed in September
Turnbull, AL

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

The windiest months (with the highest average wind speed) are February, March and April (6.3mph).
The calmest months (with the lowest average wind speed) are July and August (4.3mph).

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Average humidity in September
Turnbull, AL

Average humidity in September - Turnbull, 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 (71%).

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Average rainfall in September
Turnbull, AL

Average rainfall in September - Turnbull, AL
  • Average rainfall in September: 2.52"

The wettest month (with the highest rainfall) is August (4.49").
The driest month (with the least rainfall) is November (2.01").

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Average rainfall days in September
Turnbull, AL

Average rainfall days in September - Turnbull, AL
  • Average rainfall days in September: 17 days

The month with the highest number of rainy days is July (23.3 days).
The month with the least rainy days is November (7.5 days).

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Average snowfall in September
Turnbull, AL

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

The month with the highest snowfall is January (0.24").
Months with the least snowfall are April, May, June, July, August, September, October and November (0").

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Average snowfall days in September
Turnbull, AL

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

Months with the highest number of snowfall days are January and February (0.4 days).
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
Turnbull, AL

Average daylight in September / Average sunshine in September - Turnbull, AL
  • Average daylight in September: 12.3h

The month with the longest days is June (Average daylight: 14.2h).
The month with the shortest days is December (Average daylight: 10.1h).

  • 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: 5h).

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Average sunshine days in September
Turnbull, AL

Average sunshine days in September - Turnbull, AL
  • Average sunshine days in September: 11.3 days

The month with the most sunshine days is November (20.9 days).
The month with the least sunshine days is July (5.4 days).

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Average UV index in September
Turnbull, AL

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

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

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Average cloud cover in September
Turnbull, AL

Average cloud cover in September - Turnbull, AL
  • Average cloud cover in September: 33

The month with the most cloud cover is December (Cloud cover 50).
The month with the least cloud cover is October (Cloud cover 31).

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Average visibility in September
Turnbull, AL

Average visibility in September - Turnbull, AL
  • Average visibility in September: 5mi

Months with the highest visibility are June and October (6mi).
Months with the lowest visibility are January, February, March, April, May, July, August, September, November and December (5mi).

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