September weather forecast
Rivermont, AL

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Weather in September

September, the first month of the autumn in Rivermont, is still a warm month, with an average temperature varying between 82.8°F (28.2°C) and 63.5°F (17.5°C).

Temperature

The transition into September notes an average high-temperature of a moderately hot 82.8°F (28.2°C), revealing a mild distinction from the 88°F (31.1°C) in August. An average temperature of 63.5°F (17.5°C) is recorded during the nights in September.

Heat index

The heat index for September is estimated at 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. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', takes into account both air temperature and humidity to illustrate what people actually feel. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.

Humidity

The average relative humidity in September is 74%.

Rainfall

In Rivermont, in September, it is raining for 14.2 days, with typically 2.68" (68mm) of accumulated precipitation. In Rivermont, during the entire year, the rain falls for 178.6 days and collects up to 41.26" (1048mm) of precipitation.

Snowfall

April through October are months without snowfall.

Daylight

In Rivermont, 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, sunrise is at 6:45 am and sunset at 6:35 pm CDT.

Sunshine

In September, the average sunshine 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 health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum daily UV index of 5 in September interprets into the following recommendations:
Make use of precautions - Suggestions to resist sunburn are communicated. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Updated: Jun 3, 2024 | Published by: Weather Atlas | About Us / Weather Forecasting / Data Sources

Frequently asked questions

How hot is September?

The high-temperature during September is 82.8°F (28.2°C) and the low-temperature is 63.5°F (17.5°C). The average heat index (a.k.a. 'feels like', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in September is estimated at 89.6°F (32°C).

What is the average humidity in September?

In September, the average relative humidity is 74%.

How many days does it rain in September?

In Rivermont, during September, the rain falls for 14.2 days and regularly aggregates up to 2.68" (68mm) of 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 is the sunrise / sunset in September?

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

How many hours of sunshine does Rivermont have in September?

In September, the average sunshine duration is 8.9h.

What is the UV index reading in September?

In Rivermont, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium health risk from 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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