September weather forecast
Smithsonia, AL

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Weather in September

September, the first month of the autumn in Smithsonia, is still a warm month, with temperature in the range of an average low of 63.7°F (17.6°C) and an average high of 83.3°F (28.5°C).

Temperature

The initiation of September records an average high-temperature of a warm 83.3°F (28.5°C), displaying a near consistency with the previous month. Smithsonia throughout September, experiences an average nighttime temperature of 63.7°F (17.6°C).

Heat index

Throughout September, the heat index is calculated to be a tropical 89.6°F (32°C). Enduring exposure and continuous activity might cause a feeling of tiredness and induce heat cramps.
It is emphasized that the heat index's values are meant for shaded zones with mild winds. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.

Humidity

In September, the average relative humidity is 74%.

Rainfall

In Smithsonia, during September, the rain falls for 12.6 days and regularly aggregates up to 2.4" (61mm) of precipitation. In Smithsonia, during the entire year, the rain falls for 170.1 days and collects up to 40.12" (1019mm) of precipitation.

Snowfall

In Smithsonia, Alabama, snow does not fall in May through October.

Daylight

The average length of the day in September is 12h and 23min.
On the first day of September, sunrise is at 6:24 am and sunset at 7:17 pm. On the last day of the month, sunrise is at 6:46 am and sunset at 6:36 pm CDT.

Sunshine

In Smithsonia, the average sunshine in September is 8.9h.

UV index

The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: In September, a daily UV index of 5 turns into the following recommendations:
Heed the precautions - Suggestions to avoid sunburn are made. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Updated: Aug 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it hot during September?

September temperatures vary between a high-temperature of 83.3°F (28.5°C) and a low-temperature of 63.7°F (17.6°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which represents the influence of relative humidity on air temperature, in September is calculated to be 89.6°F (32°C).

What is the average humidity in September?

In Smithsonia, the average relative humidity in September is 74%.

How much does it rain in September?

In Smithsonia, during September, the rain falls for 12.6 days and regularly aggregates up to 2.4" (61mm) of precipitation.

When it does not snow?

In Smithsonia, snow does not fall in May through October.

What is the average length of the day in September?

In September, the average day length is 12h and 23min.

When is the sunrise / sunset in September?

In September, on the first day of the month, sunrise is at 6:24 am and sunset at 7:17 pm. On the last day of the month, sunrise is at 6:46 am and sunset at 6:36 pm CDT.

How many hours of sunshine does Smithsonia have in September?

In September, the average sunshine duration is 8.9h.

How high is the UV index in September in Smithsonia?

The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate health threat from exposure to the Sun's 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
Smithsonia, AL

Average temperature in September - Smithsonia, AL
  • Average high temperature in September: 83.3°F

The warmest month (with the highest average high temperature) is July (89.4°F).
The month with the lowest average high temperature is January (47.7°F).

  • Average low temperature in September: 63.7°F

The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (33.1°F).

Average pressure in September
Smithsonia, AL

Average pressure in September - Smithsonia, AL
  • Average pressure in September: 30.01"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).

Average wind speed in September
Smithsonia, AL

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

The windiest month (with the highest average wind speed) is February (7.9mph).
The calmest month (with the lowest average wind speed) is July (4.6mph).

Average humidity in September
Smithsonia, AL

Average humidity in September - Smithsonia, AL
  • Average humidity in September: 74%

The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (73%).

Average rainfall in September
Smithsonia, AL

Average rainfall in September - Smithsonia, AL
  • Average rainfall in September: 2.4"

The wettest month (with the highest rainfall) is February (4.37").
The driest month (with the least rainfall) is November (2.28").

Average rainfall days in September
Smithsonia, AL

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

The month with the highest number of rainy days is July (19.1 days).
The month with the least rainy days is November (9.7 days).

Average snowfall in September
Smithsonia, AL

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

The month with the highest snowfall is February (0.55").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in September
Smithsonia, AL

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

The month with the highest number of snowfall days is January (2.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

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

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in September: 8h and 5min

The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 4h and 30min).

Average sunshine days in September
Smithsonia, AL

Average sunshine days in September - Smithsonia, AL
  • Average sunshine days in September: 16.3 days

The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is July (9.8 days).

Average UV index in September
Smithsonia, AL

Average UV index in September - Smithsonia, AL
  • Average UV index in September: 5

The months with the highest UV index are May, June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 2).

Average cloud cover in September
Smithsonia, AL

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

The month with the most cloud cover is February (Cloud cover 51).
The months with the least cloud cover are June and September (Cloud cover 31).

Average visibility in September
Smithsonia, AL

Average visibility in September - Smithsonia, AL
  • Average visibility in September: 6mi

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

Smithsonia, Alabama, USA

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