September weather forecast
Parnell, AL

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Weather in September

The first month of the autumn, September, is still a hot month in Parnell, Alabama, with an average temperature ranging between max 87.6°F (30.9°C) and min 67.1°F (19.5°C).

Temperature

Parnell's shift from August to September is accompanied by an average high-temperature of a still hot 87.6°F (30.9°C), a slight deviation from 91.8°F (33.2°C). Parnell, during September, witnesses an average low-temperature of 67.1°F (19.5°C).

Heat index

The heat index value for September is evaluated at a fiery hot 100.4°F (38°C). Ensure extra safety measures, heat exhaustion and heat cramps are likely. Continuous activity might result in heatstroke.
Metrics for the heat index primarily focus on shaded spots and light wind conditions. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', ties air temperature with relative humidity to produce the perceived temperature sensation. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. Consider the fact that direct sun exposure can influence how hot one feels, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.
When faced with excessive heat, the human body begins to perspire, utilizing the cooling benefits of sweat evaporation. In conditions of both high temperature and humidity (a high heat index), sweating is limited and the perception of heat is enhanced. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.

Humidity

In September, the average relative humidity is 72%.

Rainfall

The month with the least rainfall is September, when the rain falls for 12.6 days and typically collects 1.93" (49mm) of precipitation.

Snowfall

April through November are months without snowfall.

Daylight

In September, the average length of the day is 12h and 22min.
On the first day of September, sunrise is at 6:22 am and sunset at 7:11 pm. On the last day of the month, sunrise is at 6:41 am and sunset at 6:33 pm CDT.

Sunshine

In September, the average sunshine is 9h.

UV index

In September, the average daily maximum UV index in Parnell is 6. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for the average person.
Note: In September, the maximum UV index of 6 transforms into these recommendations:
Inhibit overexposure. Warding off sun damage is of utmost importance. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Updated: Aug 17, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in September?

In Parnell, 87.6°F (30.9°C) is the average high-temperature and 67.1°F (19.5°C) is the average low-temperature during September. In September, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines air temperature and relative humidity, is evaluated at 100.4°F (38°C).

What is the average humidity in September?

In September, the average relative humidity is 72%.

What is the driest month?

The month with the least rainfall is September, when the rain falls for 12.6 days and typically collects 1.93" (49mm) of precipitation.

How much does it rain in September?

In Parnell, during September, the rain falls for 12.6 days and regularly aggregates up to 1.93" (49mm) of precipitation.

When it does not snow?

April through November are months without snowfall.

What is the average length of the day in September?

The average day length in September is 12h and 22min.

What time are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 6:22 am and sunset at 7:11 pm. On the last day of the month, sunrise is at 6:41 am and sunset at 6:33 pm CDT.

How long on average sun shines in September in Parnell?

The average sunshine duration in September is 9h.

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 threat from unprotected exposure to 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
Parnell, AL

Average temperature in September - Parnell, AL
  • Average high temperature in September: 87.6°F

The warmest month (with the highest average high temperature) is July (92.1°F).
The month with the lowest average high temperature is January (54.3°F).

  • Average low temperature in September: 67.1°F

The months with the highest average low temperature are July and August (72°F).
The coldest month (with the lowest average low temperature) is January (38.5°F).

Average pressure in September
Parnell, AL

Average pressure in September - Parnell, 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
Parnell, AL

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

The windiest month (with the highest average wind speed) is February (7.4mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).

Average humidity in September
Parnell, AL

Average humidity in September - Parnell, AL
  • Average humidity in September: 72%

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

Average rainfall in September
Parnell, AL

Average rainfall in September - Parnell, AL
  • Average rainfall in September: 1.93"

The wettest month (with the highest rainfall) is December (3.82").
The driest month (with the least rainfall) is September (1.93").

Average rainfall days in September
Parnell, AL

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

The month with the highest number of rainy days is July (20.5 days).
The month with the least rainy days is November (7.8 days).

Average snowfall in September
Parnell, AL

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

The month with the highest snowfall is January (0.35").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in September
Parnell, AL

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

The month with the highest number of snowfall days is January (0.8 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
Parnell, AL

Average daylight in September / Average sunshine in September - Parnell, 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 0min

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
Parnell, AL

Average sunshine days in September - Parnell, AL
  • Average sunshine days in September: 15.2 days

The month with the most sunshine days is October (21.7 days).
The month with the least sunshine days is July (8 days).

Average UV index in September
Parnell, AL

Average UV index in September - Parnell, 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
Parnell, AL

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

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 30).

Average visibility in September
Parnell, AL

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

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

Parnell, Alabama, USA

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