September weather forecast
Greensboro, AL

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Weather in September

September, the first month of the autumn in Greensboro, is still a hot month, with an average temperature varying between 67.1°F (19.5°C) and 87.1°F (30.6°C).

Temperature

Greensboro marks the start of September with an average high-temperature of a still hot 87.1°F (30.6°C), hinting at a slight fluctuation from August's 91.4°F (33°C). During September, an average low-temperature of 67.1°F (19.5°C) is observed.

Heat index

In September, the average heat index is calculated to be a torrid 98.6°F (37°C). Undertake additional precautions, heat cramps and heat exhaustion could happen. Heatstroke could occur from sustained activity.
Heat index determinations are made taking into account the shade and light air movements. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is achieved by amalgamating air temperature with the relative humidity readings. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
The body's self-cooling mechanism is rooted in perspiration, where evaporating sweat cools down excessive warmth. With an abundance of moisture present in the air, the process of evaporation becomes less effective, and the body fails to cool down as it should, leading to the sensation of overheating. Excessive heat gain, when not shed effectively by the body, can result in increasing body temperatures and related hazards.

Humidity

The average relative humidity in September in Greensboro is 71%.

Rainfall

September is the month with the least rainfall. Rain falls for 13.4 days and accumulates 2.2" (56mm) of precipitation.

Snowfall

In Greensboro, snow does not fall in March through October.

Daylight

In Greensboro, Alabama, the average length of the day in September is 12h and 22min.
On the first day of the month, sunrise is at 6:25 am and sunset at 7:14 pm. On the last day of September, sunrise is at 6:44 am and sunset at 6:35 pm CDT.

Sunshine

In September, the average sunshine is 9.2h.

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 the ordinary person.
Note: The UV index of 6 during September translates into the following guidance:
Resist extreme sun exposure. Guarding against solar damage is essential. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Updated: Aug 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in September?

In September, the average high-temperature and low-temperature are 87.1°F (30.6°C) and 67.1°F (19.5°C) respectively. In September, the average heat index (a.k.a. 'feels like', 'real feel'), which calculates the temperature value influenced by the moisture in the air, is calculated to be 98.6°F (37°C).

What is the average humidity in September?

In Greensboro, the average relative humidity in September is 71%.

What is the driest month?

The month with the least rainfall is September, when the rain falls for 13.4 days and typically collects 2.2" (56mm) of precipitation.

How many days does it rain in September?

In September, the rain falls for 13.4 days. Throughout September, 2.2" (56mm) of precipitation is accumulated.

When it does not snow?

March through October are months without snowfall.

How many hours of daylight does Greensboro have in September?

In Greensboro, the average day length in September is 12h and 22min.

When are sunrise and sunset in September?

On the first day of September, sunrise is at 6:25 am and sunset at 7:14 pm. On the last day of the month, sunrise is at 6:44 am and sunset at 6:35 pm CDT.

How many hours of sunshine does Greensboro have in September?

The average sunshine duration in September is 9.2h.

What is the UV index intensity in September?

In September, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability 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
Greensboro, AL

Average temperature in September - Greensboro, AL
  • Average high temperature in September: 87.1°F

The warmest month (with the highest average high temperature) is July (91.9°F).
The month with the lowest average high temperature is January (53.4°F).

  • Average low temperature in September: 67.1°F

The month with the highest average low temperature is August (72°F).
The coldest month (with the lowest average low temperature) is January (37.9°F).

Average pressure in September
Greensboro, AL

Average pressure in September - Greensboro, AL
  • Average pressure in September: 29.99"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
Greensboro, AL

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

The windiest months (with the highest average wind speed) are January, February and March (7.3mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).

Average humidity in September
Greensboro, AL

Average humidity in September - Greensboro, AL
  • Average humidity in September: 71%

The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (69%).

Average rainfall in September
Greensboro, AL

Average rainfall in September - Greensboro, AL
  • Average rainfall in September: 2.2"

The wettest month (with the highest rainfall) is April (4.17").
The driest month (with the least rainfall) is September (2.2").

Average rainfall days in September
Greensboro, AL

Average rainfall days in September - Greensboro, AL
  • Average rainfall days in September: 13.4 days

The month with the highest number of rainy days is July (21.4 days).
The month with the least rainy days is November (8.7 days).

Average snowfall in September
Greensboro, AL

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

The month with the highest snowfall is January (0.47").
The months with the least snowfall are March, April, May, June, July, August, September and October (0").

Average snowfall days in September
Greensboro, AL

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

The month with the highest number of snowfall days is January (1.2 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
Greensboro, AL

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

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in September: 9h and 1min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The months with the least sunshine are February and December (Average sunshine: 4h and 54min).

Average sunshine days in September
Greensboro, AL

Average sunshine days in September - Greensboro, AL
  • Average sunshine days in September: 14.8 days

The month with the most sunshine days is October (21.1 days).
The month with the least sunshine days is July (8.6 days).

Average UV index in September
Greensboro, AL

Average UV index in September - Greensboro, 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 and December (UV index 3).

Average cloud cover in September
Greensboro, AL

Average cloud cover in September - Greensboro, AL
  • Average cloud cover in September: 29

The months with the most cloud cover are February and December (Cloud cover 47).
The months with the least cloud cover are September and October (Cloud cover 29).

Average visibility in September
Greensboro, AL

Average visibility in September - Greensboro, 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).

Greensboro, Alabama, USA

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