September weather forecast
Old Coloma, AL

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Weather in September

The first month of the autumn, September, is still a warm month in Old Coloma, Alabama, with an average temperature varying between 63.3°F (17.4°C) and 83.5°F (28.6°C).

Temperature

The transition from August to September sees average high-temperatures adjusting to a warm 83.5°F (28.6°C), from a not significantly different 88.7°F (31.5°C). Old Coloma's average low-temperature for the month of September records at a refreshing 63.3°F (17.4°C).

Heat index

The average heat index in September is evaluated at a hot 91.4°F (33°C). Implement additional cautionary measures, heat cramps and heat exhaustion could occur. Prolonged activity might induce heatstroke.
When assessing, remember that heat index measurements are for light winds and shaded spots. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. 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 extremely significant for children. Young ones generally face higher dangers than adults since they sweat less. Along with their large skin surface area compared totheir small bodies and increased heat production from their activities, the risks are heightened.

Humidity

In September, the average relative humidity in Old Coloma is 75%.

Rainfall

In Old Coloma, in September, during 11.5 rainfall days, 1.54" (39mm) of precipitation is typically accumulated. Throughout the year, there are 154.5 rainfall days, and 25.04" (636mm) of precipitation is accumulated.

Snowfall

April through November are months without snowfall.

Daylight

The average length of the day in September is 12h and 22min.
On the first day of September, sunrise is at 6:16 am and sunset at 7:07 pm. On the last day of the month, sunrise is at 6:36 am and sunset at 6:27 pm CDT.

Sunshine

The average sunshine in September is 8.5h.

UV index

In Old Coloma, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the ordinary person.
Note: The daily high UV index of 5 in September translates into this advice:
Undertake precautions - Guarding against sun damage is counselled. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Updated: Aug 27, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in September?

The average high-temperature and low-temperature during September are 83.5°F (28.6°C) and 63.3°F (17.4°C) respectively. In September, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is evaluated at 91.4°F (33°C).

What is the average humidity in September?

The average relative humidity in September is 75%.

How many days does it rain in September in Old Coloma?

In Old Coloma, in September, during 11.5 rainfall days, 1.54" (39mm) of precipitation is typically accumulated.

When it does not snow?

In Old Coloma, snow does not fall in April through November.

What is the average length of the day in September?

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

When is the sunrise / sunset in September?

On the first day of September, sunrise is at 6:16 am and sunset at 7:07 pm. On the last day of the month, sunrise is at 6:36 am and sunset at 6:27 pm CDT.

How long on average sun shines in September?

In September, the average sunshine duration is 8.5h.

What is the UV index reading in September?

The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes 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
Old Coloma, AL

Average temperature in September - Old Coloma, AL
  • Average high temperature in September: 83.5°F

The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (49.8°F).

  • Average low temperature in September: 63.3°F

The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (33.8°F).

Average pressure in September
Old Coloma, AL

Average pressure in September - Old Coloma, 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
Old Coloma, AL

Average wind speed in September - Old Coloma, AL
  • Average wind speed in September: 4.5mph

The windiest month (with the highest average wind speed) is February (7.2mph).
The calmest month (with the lowest average wind speed) is August (4mph).

Average humidity in September
Old Coloma, AL

Average humidity in September - Old Coloma, AL
  • Average humidity in September: 75%

The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (73%).

Average rainfall in September
Old Coloma, AL

Average rainfall in September - Old Coloma, AL
  • Average rainfall in September: 1.54"

The wettest month (with the highest rainfall) is August (2.56").
The driest month (with the least rainfall) is October (1.38").

Average rainfall days in September
Old Coloma, AL

Average rainfall days in September - Old Coloma, AL
  • Average rainfall days in September: 11.5 days

The month with the highest number of rainy days is July (20.1 days).
The month with the least rainy days is November (7.9 days).

Average snowfall in September
Old Coloma, AL

Average snowfall in September - Old Coloma, AL
  • Average snowfall in September: 0"

The month with the highest snowfall is January (0.55").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in September
Old Coloma, AL

Average snowfall days in September - Old Coloma, AL
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (1.5 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
Old Coloma, AL

Average daylight in September / Average sunshine in September - Old Coloma, 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 3min

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 48min).

Average sunshine days in September
Old Coloma, AL

Average sunshine days in September - Old Coloma, AL
  • Average sunshine days in September: 16.4 days

The months with the most sunshine days are October and November (20.1 days).
The month with the least sunshine days is July (8.9 days).

Average UV index in September
Old Coloma, AL

Average UV index in September - Old Coloma, 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
Old Coloma, AL

Average cloud cover in September - Old Coloma, AL
  • Average cloud cover in September: 31

The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is June (Cloud cover 30).

Average visibility in September
Old Coloma, AL

Average visibility in September - Old Coloma, 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).

Old Coloma, Alabama, USA

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