September weather forecast
Rivermont, AL

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Rivermont, Alabama, with temperature in the range of an average low of 63.5°F (17.5°C) and an average high of 82.8°F (28.2°C).

Temperature

As August transitions into September, Rivermont records an average high-temperature of a moderately hot 82.8°F (28.2°C), showing a gentle shift from the preceding month. During September, Rivermont records a consistent average nighttime temperature of 63.5°F (17.5°C).

Heat index

The heat index value for September is calculated to be a tropical 89.6°F (32°C). Long-standing exposure and activity could induce a feeling of tiredness and lead to heat cramps.
Always consider that heat index estimations are for light winds and places in the shade. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', binds temperature metrics with humidity values to give a sense of the actual warmth. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. It is essential to be conscious of the fact that direct sunlight can intensify the felt heat, leading to an elevation in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.

Humidity

In September, the average relative humidity is 74%.

Rainfall

In Rivermont, in September, it is raining for 14.2 days, with typically 2.68" (68mm) of accumulated precipitation. Throughout the year, there are 178.6 rainfall days, and 41.26" (1048mm) of precipitation is accumulated.

Snowfall

April through October are months without snowfall.

Daylight

The average length of the day in September is 12h and 23min.
On the first day of the month, sunrise is at 6:24 am and sunset at 7:16 pm. On the last day of September, in Rivermont, sunrise is at 6:45 am and sunset at 6:35 pm CDT.

Sunshine

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

UV index

In Rivermont, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: A daily maximum UV index of 5 in September translates into the following instructions:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Experience reduced UV exposure by about half when donning a wide-brim hat.
Updated: Aug 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it hot during September?

During September, Rivermont experiences an average high-temperature of 82.8°F (28.2°C) and a low-temperature of 63.5°F (17.5°C). In September, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, is calculated to be 89.6°F (32°C).

What is the average humidity in September?

The average relative humidity in September is 74%.

How many days does it rain in September?

In Rivermont, in September, it is raining for 14.2 days, with typically 2.68" (68mm) of accumulated precipitation.

When it does not snow?

April through October are months without snowfall.

How many hours of daylight does Rivermont have in September?

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

When are sunrise and sunset in September?

On the first day of September, sunrise is at 6:24 am and sunset at 7:16 pm. On the last day of the month, sunrise is at 6:45 am and sunset at 6:35 pm CDT.

How long on average sun shines in September in Rivermont?

In Rivermont, Alabama, the average sunshine duration in September is 8.9h.

What is the UV index intensity in September?

The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium health risk from unsafe exposure to Sun's UV rays.
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
Rivermont, AL

Average temperature in September - Rivermont, 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 (47.7°F).

  • Average low temperature in September: 63.5°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
Rivermont, AL

Average pressure in September - Rivermont, AL
  • Average pressure in September: 30.02"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
Rivermont, AL

Average wind speed in September - Rivermont, AL
  • Average wind speed in September: 5.3mph

The windiest month (with the highest average wind speed) is February (8.3mph).
The calmest month (with the lowest average wind speed) is July (4.8mph).

Average humidity in September
Rivermont, AL

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

The months with the highest relative humidity are March and December (79%).
The month with the lowest relative humidity is October (72%).

Average rainfall in September
Rivermont, AL

Average rainfall in September - Rivermont, AL
  • Average rainfall in September: 2.68"

The wettest month (with the highest rainfall) is February (4.53").
The driest month (with the least rainfall) is November (2.56").

Average rainfall days in September
Rivermont, AL

Average rainfall days in September - Rivermont, AL
  • Average rainfall days in September: 14.2 days

The month with the highest number of rainy days is July (19.8 days).
The month with the least rainy days is November (10.5 days).

Average snowfall in September
Rivermont, AL

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

The month with the highest snowfall is February (0.71").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in September
Rivermont, AL

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

The month with the highest number of snowfall days is February (2.4 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
Rivermont, AL

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

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in September: 8h and 5min

The months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The months with the least sunshine are February and December (Average sunshine: 4h and 42min).

Average sunshine days in September
Rivermont, AL

Average sunshine days in September - Rivermont, AL
  • Average sunshine days in September: 14.2 days

The months with the most sunshine days are October and November (17.6 days).
The month with the least sunshine days is July (9.9 days).

Average UV index in September
Rivermont, AL

Average UV index in September - Rivermont, 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
Rivermont, AL

Average cloud cover in September - Rivermont, AL
  • Average cloud cover in September: 30

The months with the most cloud cover are February and December (Cloud cover 50).
The month with the least cloud cover is June (Cloud cover 29).

Average visibility in September
Rivermont, AL

Average visibility in September - Rivermont, 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).

Rivermont, Alabama, USA

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