September weather forecast and climate
Renson, AL

Weather in September

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

Temperature

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

Heat index

The average heat index in September is estimated at a torrid 103.1°F (39.5°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like', 'apparent temperature', 'real feel', or 'felt air temperature', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. This effect is individual, with diverse people perceiving weather differently for numerous reasons (differences in body mass, height, and shape, clothing, metabolic differences), 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 particularly important for children. 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 cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. 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 surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

In Renson, the average relative humidity is 75%.

Rainfall

In Renson, in September, it is raining for 17 days, with typically 2.52" (64mm) of accumulated precipitation. Throughout the year, there are 174.1 rainfall days, and 36.02" (915mm) of precipitation is accumulated.

Snowfall

April through November are months without snowfall in Renson.

Daylight

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

Sunshine

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

UV index

In September, the average daily maximum UV index in Renson, Alabama, is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to the UV radiation for the ordinary person.
Note: The daily maximum UV index of 6 in September interpret into the following advice:
Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the temperature in September in Renson?

In September, in Renson, Alabama, the average high-temperature is 88°F (31.1°C), and the average low-temperature is 68°F (20°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 103.1°F (39.5°C).

What is the average humidity in September in Renson?

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

How much does it rain in Renson in September?

In Renson, in September, during 17 rainfall days, 2.52" (64mm) of precipitation is typically accumulated.

When it does not snow in Renson?

April through November are months without snowfall in Renson, Alabama.

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

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

How many hours of sunshine does Renson have in September?

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

How high is the UV index in September in Renson?

In Renson, Alabama, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to the UV radiation.

Average temperature in September
Renson, AL

Average temperature in September - Renson, 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
Renson, AL

Average pressure in September - Renson, 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
Renson, AL

Average wind speed in September - Renson, 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
Renson, AL

Average humidity in September - Renson, 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
Renson, AL

Average rainfall in September - Renson, 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
Renson, AL

Average rainfall days in September - Renson, 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
Renson, AL

Average snowfall in September - Renson, 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
Renson, AL

Average snowfall days in September - Renson, 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
Renson, AL

Average daylight in September / Average sunshine in September - Renson, 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
Renson, AL

Average sunshine days in September - Renson, 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
Renson, AL

Average UV index in September - Renson, 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
Renson, AL

Average cloud cover in September - Renson, 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
Renson, AL

Average visibility in September - Renson, 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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