September weather forecast
Marion Junction, AL

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Weather in September

September, the first month of the autumn in Marion Junction, is still a tropical month, with an average temperature varying between 87.6°F (30.9°C) and 67.1°F (19.5°C).

Temperature

The introduction of September notes a subtle temperature variation to a still tropical 87.6°F (30.9°C) from August's 91.8°F (33.2°C). Marion Junction experiences an average temperature drop to a refreshing 67.1°F (19.5°C) during September nights.

Heat index

The heat index value during September is estimated at a torrid 100.4°F (38°C). Preventive measures are required to mitigate the risk of heat cramps and heat exhaustion. Continuous activity may precipitate heatstroke.
It is essential to grasp that the heat index's numbers are for shade and light wind settings. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', takes into account both air temperature and humidity to illustrate what people actually feel. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
The physiological response of the human body to excess warmth is to perspire, thereby cooling itself through sweat evaporation. Under conditions of high temperature and humidity (enhanced heat index), sweat production is compromised, exacerbating the sensation of warmth. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

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 Marion Junction, the average length of the day in September is 12h and 22min.
On the first day of September, sunrise is at 6:24 am and sunset at 7:13 pm. On the last day of the month, sunrise is at 6:42 am and sunset at 6:34 pm CDT.

Sunshine

The average sunshine in September is 9h.

UV index

In September, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for the average person.
Note: During September, 6 as the daily maximum UV index converts into the following advice:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Updated: Aug 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in September?

An average high-temperature, in September, in Marion Junction, is 87.6°F (30.9°C) and the average low-temperature is 67.1°F (19.5°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, in September is estimated at 100.4°F (38°C).

What is the average humidity in September?

In Marion Junction, the average relative humidity in September is 72%.

What is the driest month?

September is the month with the least rainfall. Rain falls for 12.6 days and accumulates 1.93" (49mm) of precipitation.

How much does it rain in September?

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

When it does not snow?

In Marion Junction, snow does not fall in April through November.

How many hours of daylight does Marion Junction have in September?

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

When is the sunrise / sunset in September?

On the first day of September, sunrise is at 6:24 am and sunset at 7:13 pm. On the last day of the month, sunrise is at 6:42 am and sunset at 6:34 pm CDT.

How many hours of sunshine does Marion Junction have in September?

In September, the average sunshine duration is 9h.

What is the UV index intensity in September in Marion Junction?

The average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high hazard to health 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
Marion Junction, AL

Average temperature in September - Marion Junction, 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
Marion Junction, AL

Average pressure in September - Marion Junction, 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
Marion Junction, AL

Average wind speed in September - Marion Junction, 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
Marion Junction, AL

Average humidity in September - Marion Junction, 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
Marion Junction, AL

Average rainfall in September - Marion Junction, 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
Marion Junction, AL

Average rainfall days in September - Marion Junction, 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
Marion Junction, AL

Average snowfall in September - Marion Junction, 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
Marion Junction, AL

Average snowfall days in September - Marion Junction, 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
Marion Junction, AL

Average daylight in September / Average sunshine in September - Marion Junction, 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: 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
Marion Junction, AL

Average sunshine days in September - Marion Junction, 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
Marion Junction, AL

Average UV index in September - Marion Junction, 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
Marion Junction, AL

Average cloud cover in September - Marion Junction, 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
Marion Junction, AL

Average visibility in September - Marion Junction, 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).

Marion Junction, Alabama, USA

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