September weather forecast
Perdue Hill, AL

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Weather in September

September, the first month of the autumn in Perdue Hill, is still a hot month, with an average temperature varying between 68°F (20°C) and 88.2°F (31.2°C).

Temperature

Perdue Hill marks the start of September with an average high-temperature of a still tropical 88.2°F (31.2°C), hinting at a slight fluctuation from August's 91.9°F (33.3°C). An average low-temperature of 68°F (20°C) marks the month of September in Perdue Hill.

Heat index

The average heat index in September is computed to be a blisteringly hot 104°F (40°C). Take extra safety measures to prevent heat exhaustion and heat cramps. Heatstroke could follow lengthy activity.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.
The human body has a built-in cooling mechanism through perspiration; evaporating sweat dissipates the excess heat. Relative humidity in excess curtails evaporation, therefore reducing heat dissipation from the body, leading to feelings of excess heat. If heat absorption isn't effectively countered by the body's cooling methods, body temperature surges, hinting at potential problems.

Humidity

The average relative humidity in September is 76%.

Rainfall

In September, the rain falls for 17.2 days. Throughout September, 2.6" (66mm) of precipitation is accumulated. Throughout the year, there are 178.8 rainfall days, and 36.61" (930mm) of precipitation is accumulated.

Snowfall

In Perdue Hill, snow does not fall in April through November.

Daylight

The average length of the day in September is 12h and 21min.
On the first day of September, sunrise is at 6:26 am and sunset at 7:13 pm. On the last day of the month, sunrise is at 6:43 am and sunset at 6:35 pm CDT.

Sunshine

In Perdue Hill, the average sunshine in September is 8.7h.

UV index

The average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for average individuals.
Note: The UV index of 6 during September leads to these advisories:
Take precautions against overexposure. Protection against sun damage is needed. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Updated: Jun 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in September?

The high-temperature, in September, in Perdue Hill, records 88.2°F (31.2°C), while the low-temperature is 68°F (20°C). In September, the average heat index (a.k.a. 'real feel', 'feels like'), which combines air temperature and relative humidity, is computed to be 104°F (40°C).

What is the average humidity in September?

In September, the average relative humidity is 76%.

How many days does it rain in September?

In Perdue Hill, in September, during 17.2 rainfall days, 2.6" (66mm) of precipitation is typically accumulated.

When it does not snow?

In Perdue Hill, snow does not fall in April through November.

How many hours of daylight does Perdue Hill have in September?

The average day length in September in Perdue Hill, Alabama, is 12h and 21min.

When is the sunrise / sunset in September?

On the first day of September, sunrise is at 6:26 am and sunset at 7:13 pm. On the last day of the month, sunrise is at 6:43 am and sunset at 6:35 pm CDT.

How many hours of sunshine does Perdue Hill have in September?

In Perdue Hill, the average sunshine duration in September is 8.7h.

What is the UV index reading in September?

In September, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high hazard to health 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
Perdue Hill, AL

Average temperature in September - Perdue Hill, AL
  • Average high temperature in September: 88.2°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 (57°F).

  • Average low temperature in September: 68°F

The month with the highest average low temperature is August (72.3°F).
The coldest month (with the lowest average low temperature) is January (38.8°F).

Average pressure in September
Perdue Hill, AL

Average pressure in September - Perdue Hill, AL
  • Average pressure in September: 29.98"Hg

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

Average wind speed in September
Perdue Hill, AL

Average wind speed in September - Perdue Hill, AL
  • Average wind speed in September: 4.5mph

The windiest months (with the highest average wind speed) are February, March and April (6.2mph).
The calmest months (with the lowest average wind speed) are July and August (4.3mph).

Average humidity in September
Perdue Hill, AL

Average humidity in September - Perdue Hill, AL
  • Average humidity in September: 76%

The month with the highest relative humidity is December (81%).
The month with the lowest relative humidity is October (72%).

Average rainfall in September
Perdue Hill, AL

Average rainfall in September - Perdue Hill, AL
  • Average rainfall in September: 2.6"

The wettest month (with the highest rainfall) is August (4.53").
The driest month (with the least rainfall) is November (2.09").

Average rainfall days in September
Perdue Hill, AL

Average rainfall days in September - Perdue Hill, AL
  • Average rainfall days in September: 17.2 days

The month with the highest number of rainy days is July (24.4 days).
The month with the least rainy days is November (7.8 days).

Average snowfall in September
Perdue Hill, AL

Average snowfall in September - Perdue Hill, AL
  • Average snowfall in September: 0"

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

Average snowfall days in September
Perdue Hill, AL

Average snowfall days in September - Perdue Hill, AL
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (0.5 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in September /
Average sunshine in September
Perdue Hill, AL

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

The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).

  • Average sunshine in September: 8h and 4min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).

Average sunshine days in September
Perdue Hill, AL

Average sunshine days in September - Perdue Hill, AL
  • Average sunshine days in September: 11 days

The month with the most sunshine days is November (20.8 days).
The month with the least sunshine days is July (4.8 days).

Average UV index in September
Perdue Hill, AL

Average UV index in September - Perdue Hill, AL
  • Average UV index in September: 6

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

Average cloud cover in September
Perdue Hill, AL

Average cloud cover in September - Perdue Hill, AL
  • Average cloud cover in September: 34

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

Average visibility in September
Perdue Hill, AL

Average visibility in September - Perdue Hill, AL
  • Average visibility in September: 5mi

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

Perdue Hill, Alabama, USA

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