September weather forecast
McCalla, AL

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Weather in September

The first month of the autumn, September, is also a moderately hot month in McCalla, Alabama, with an average temperature ranging between max 85.5°F and min 66°F.

Temperature

The onset of September marks an average high-temperature of a warm 85.5°F, hardly differing from August's 90.3°F. McCalla experiences a mean low-temperature of 66°F during September.

Heat index

For most parts of September, the heat index is evaluated at a fiery hot 95°F. Implement additional preventive actions, heat cramps and heat exhaustion are potential hazards. Heatstroke could follow prolonged activity.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', ties air temperature with relative humidity to produce the perceived temperature sensation. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.
When faced with excessive heat, the human body begins to perspire, utilizing the cooling benefits of sweat evaporation. When there is abundant moisture in the air, the body's cooling through the evaporation process becomes less effective, leading to the sensation of overheating. As the body accumulates more heat than it can release, body temperature goes up, increasing the risk of heat-related health issues.

Humidity

In September, the average relative humidity is 71%.

Rainfall

In McCalla, in September, it is raining for 14.3 days, with typically 2.44" of accumulated precipitation. In McCalla, during the entire year, the rain falls for 172.1 days and collects up to 39.69" of precipitation.

Snowfall

April through October are months without snowfall.

Daylight

In September, the average length of the day is 12h and 22min.
On the first day of the month, sunrise is at 6:22 am and sunset at 7:13 pm. On the last day of September, sunrise is at 6:41 am and sunset at 6:34 pm CDT.

Sunshine

In McCalla, the average sunshine in September is 8.9h.

UV index

The months with the highest UV index are April through September, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for average individuals.
Note: A typical high UV index of 6 in September suggests the following recommendations:
Adhere to precautions and respect sun safety doctrines. Avoiding sunburn is vital. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. Opt for tightly woven and loose clothing to enhance protection from the Sun.
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FAQ

Is it hot in McCalla during September?

The average high-temperature, in September, in McCalla, is 85.5°F, while the average low-temperature is 66°F. The average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines air temperature and relative humidity, in September is evaluated at 95°F.

What is the average humidity in September in McCalla?

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

How much does it rain in McCalla in September?

In McCalla, in September, it is raining for 14.3 days, with typically 2.44" of accumulated precipitation.

When it does not snow in McCalla?

April through October are months without snowfall.

What is the average length of the day in September in McCalla?

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

When is the sunrise / sunset in September in McCalla?

On the first day of September, sunrise is at 6:22 am and sunset at 7:13 pm. On the last day of the month, sunrise is at 6:41 am and sunset at 6:34 pm CDT.

How many hours of sunshine does McCalla have in September?

In McCalla, the average sunshine duration in September is 8.9h.

What is the month with the highest UV index in McCalla?

The months with the highest UV index in McCalla, Alabama, are April through September, with an average maximum UV index of 6.

How high is the UV index in September in McCalla?

In September, the average daily maximum UV index in McCalla, Alabama, is 6. A UV Index of 6 to 7 symbolizes a high health threat from unsafe exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
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
McCalla, AL

Average temperature in September - McCalla, AL
  • Average high temperature in September: 85.5°F

The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (51.3°F).

  • Average low temperature in September: 66°F

The month with the highest average low temperature is August (71.6°F).
The coldest month (with the lowest average low temperature) is January (36°F).

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Average pressure in September
McCalla, AL

Average pressure in September - McCalla, AL
  • Average pressure in September: 30.01"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The months with the lowest atmospheric pressure are June and August (29.98"Hg).

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Average wind speed in September
McCalla, AL

Average wind speed in September - McCalla, AL
  • Average wind speed in September: 5mph

The windiest months (with the highest average wind speed) are February and March (7.3mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).

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Average humidity in September
McCalla, AL

Average humidity in September - McCalla, 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 (70%).

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Average rainfall in September
McCalla, AL

Average rainfall in September - McCalla, AL
  • Average rainfall in September: 2.44"

The wettest month (with the highest rainfall) is December (4.13").
The driest month (with the least rainfall) is October (2.24").

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Average rainfall days in September
McCalla, AL

Average rainfall days in September - McCalla, AL
  • Average rainfall days in September: 14.3 days

The month with the highest number of rainy days is July (21 days).
The month with the least rainy days is November (8.6 days).

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Average snowfall in September
McCalla, AL

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

The month with the highest snowfall is January (0.75").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in September
McCalla, AL

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

The month with the highest number of snowfall days is February (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average daylight in September /
Average sunshine in September
McCalla, AL

Average daylight in September / Average sunshine in September - McCalla, 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: 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 48min).

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Average sunshine days in September
McCalla, AL

Average sunshine days in September - McCalla, AL
  • Average sunshine days in September: 13.4 days

The month with the most sunshine days is October (19.7 days).
The month with the least sunshine days is July (8.3 days).

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Average UV index in September
McCalla, AL

Average UV index in September - McCalla, AL
  • Average UV index in September: 6

The months with the highest UV index are April, May, June, July, August and September (UV index 6).
The month with the lowest UV index is December (UV index 2).

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Average cloud cover in September
McCalla, AL

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

The months with the most cloud cover are February and December (Cloud cover 48).
The months with the least cloud cover are June, September and October (Cloud cover 30).

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Average visibility in September
McCalla, AL

Average visibility in September - McCalla, 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).

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McCalla, Alabama, USA

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