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

Colwell's shift into September sets the average high-temperature at a moderately hot 84°F (28.9°C), a figure that deviates only slightly from August's 89.1°F (31.7°C). Colwell experiences an average low-temperature of 63.9°F (17.7°C) in the month of September.

Heat index

September's heat index is appraised at a tropical 91.4°F (33°C). Ensure extra safety steps, heat exhaustion and heat cramps are likely. Long activity might lead to heatstroke.
Realize that the values for the heat index are set for shaded places and light winds. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', binds temperature metrics with humidity values to give a sense of the actual warmth. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.

Humidity

The average relative humidity in September is 74%.

Rainfall

In Colwell, during September, the rain falls for 12.9 days and regularly aggregates up to 2.36" (60mm) of precipitation. In Colwell, during the entire year, the rain falls for 171.3 days and collects up to 37.83" (961mm) of precipitation.

Snowfall

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

Daylight

In September, the average length of the day 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

The average sunshine in September is 8.6h.

UV index

The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: A daily high UV index of 5 in September leads to these guidelines:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.

Frequently asked questions

Is it hot during September?

The high-temperature, in September, in Colwell, is 84°F (28.9°C), while the low-temperature averages to 63.9°F (17.7°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in September is appraised at 91.4°F (33°C).

What is the average humidity in September?

The average relative humidity in September is 74%.

How many days does it rain in September?

In September, the rain falls for 12.9 days. Throughout September, 2.36" (60mm) of precipitation is accumulated.

When it does not snow?

April through October are months without snowfall.

How many hours of daylight does Colwell have in September?

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

When is the sunrise / sunset in September?

In September, on the first day of the month, 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 long on average sun shines in September?

The average sunshine duration in September is 8.6h.

What is the UV index reading in September?

In Colwell, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium hazard to health from exposure to the Sun's 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
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).

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).

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).

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%).

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").

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).

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").

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).

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).

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).

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).

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).

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).

Colwell, Alabama, USA

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