September weather forecast
Colwell, AL

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Weather in September

September, the first month of the autumn in Colwell, is still a warm month, with an average temperature ranging between max 84°F (28.9°C) and min 63.9°F (17.7°C).

Temperature

The transition into September notes an average high-temperature of a moderately hot 84°F (28.9°C), revealing a mild distinction from the 89.1°F (31.7°C) in August. Colwell, during the month of September, experiences an average low-temperature of 63.9°F (17.7°C).

Heat index

September's mean heat index is evaluated at a hot 91.4°F (33°C). Preventive measures are required to mitigate the risk of heat cramps and heat exhaustion. Continuous activity may precipitate heatstroke.
Heat index specifics point out values are for conditions of shade and a slight breeze. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'real feel' or 'feels like', comes about by integrating the temperature readings with the humidity levels. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.

Humidity

The average relative humidity in September is 74%.

Rainfall

In Colwell, in September, during 12.9 rainfall days, 2.36" (60mm) of precipitation is typically accumulated. Throughout the year, there are 171.3 rainfall days, and 37.83" (961mm) of precipitation is accumulated.

Snowfall

April through October are months without snowfall in Colwell.

Daylight

The average length of the day in September is 12h and 22min.
On the first day of the month, sunrise is at 6:17 am and sunset at 7:08 pm. On the last day of September, sunrise is at 6:37 am and sunset at 6:28 pm CDT.

Sunshine

In Colwell, Alabama, the average sunshine in September is 8.6h.

UV index

In Colwell, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the average person.
Note: The maximum daily UV index of 5 during September translates into the following directions:
Ensure safety - Recommendations to avert sunburn are presented. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
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Frequently asked questions

Is it hot in Colwell during September?

In Colwell, 84°F (28.9°C) is the average high-temperature and 63.9°F (17.7°C) is the average low-temperature during September. The average heat index (a.k.a. 'felt air temperature', 'feels like'), which represents the influence of relative humidity on air temperature, in September is evaluated at 91.4°F (33°C).

What is the average humidity in September in Colwell?

The average relative humidity in September in Colwell, Alabama, is 74%.

How much does it rain in Colwell in September?

In Colwell, in September, during 12.9 rainfall days, 2.36" (60mm) of precipitation is typically accumulated.

When it does not snow in Colwell?

In Colwell, snow does not fall in April through October.

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

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

When is the sunrise / sunset in September in Colwell?

On the first day of September, sunrise is at 6:17 am and sunset at 7:08 pm. On the last day of the month, sunrise is at 6:37 am and sunset at 6:28 pm CDT.

How many hours of sunshine does Colwell have in September?

The average sunshine duration in September in Colwell is 8.6h.

What is the UV index intensity in September in Colwell?

In Colwell, Alabama, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate health threat 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
Colwell, AL

Average temperature in September - Colwell, AL
  • Average high temperature in September: 84°F

The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is January (49.6°F).

  • Average low temperature in September: 63.9°F

The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (34.2°F).

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Average pressure in September
Colwell, AL

Average pressure in September - Colwell, AL
  • Average pressure in September: 30.02"Hg

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

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Average wind speed in September
Colwell, AL

Average wind speed in September - Colwell, AL
  • Average wind speed in September: 4.6mph

The windiest month (with the highest average wind speed) is February (7.3mph).
The calmest months (with the lowest average wind speed) are July and August (4.2mph).

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Average humidity in September
Colwell, AL

Average humidity in September - Colwell, AL
  • Average humidity in September: 74%

The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (72%).

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Average rainfall in September
Colwell, AL

Average rainfall in September - Colwell, AL
  • Average rainfall in September: 2.36"

The wettest months (with the highest rainfall) are February and December (3.9").
The driest month (with the least rainfall) is October (2.32").

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Average rainfall days in September
Colwell, AL

Average rainfall days in September - Colwell, AL
  • Average rainfall days in September: 12.9 days

The month with the highest number of rainy days is July (20.7 days).
The month with the least rainy days is November (8.7 days).

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Average snowfall in September
Colwell, AL

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

The month with the highest snowfall is December (0.43").
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
Colwell, AL

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

The month with the highest number of snowfall days is February (1.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

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

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in September: 8h and 4min

The months with the most sunshine are June and July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

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Average sunshine days in September
Colwell, AL

Average sunshine days in September - Colwell, AL
  • Average sunshine days in September: 14.9 days

The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is July (8.8 days).

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Average UV index in September
Colwell, AL

Average UV index in September - Colwell, AL
  • Average UV index in September: 5

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

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Average cloud cover in September
Colwell, AL

Average cloud cover in September - Colwell, AL
  • Average cloud cover in September: 31

The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is June (Cloud cover 30).

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Average visibility in September
Colwell, AL

Average visibility in September - Colwell, 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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Colwell, Alabama, USA

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