Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
Gardendale experiences a transition to a moderately hot 84.9°F (29.4°C) in average high-temperatures with the arrival of September, not greatly differing from August's 90°F (32.2°C). During September, Gardendale sees a mean low-temperature of 65.3°F (18.5°C).Heat index
September's heat index is calculated to be a tropical 93.2°F (34°C). Undertake enhanced precautions, heat exhaustion and heat cramps are possible risks. Continuous activity could trigger heatstroke.Consider that heat index readings are for situations in the shade and light wind. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a numerical representation of warmth when taking temperature and moisture levels into account. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.
Humidity
In September, the average relative humidity is 72%.Rainfall
In Gardendale, during September, the rain falls for 14.2 days and regularly aggregates up to 2.4" (61mm) of precipitation. In Gardendale, Alabama, during the entire year, the rain falls for 173.8 days and collects up to 39.41" (1001mm) 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 September, sunrise is at 6:21 am and sunset at 7:12 pm. On the last day of the month, sunrise is at 6:41 am and sunset at 6:32 pm CDT.
Sunshine
In September, the average sunshine in Gardendale is 8.9h.UV index
In September, the average daily maximum UV index in Gardendale, Alabama, is 5. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: In September, the maximum UV index of 5 transforms into these recommendations:
Be vigilant - Preventing sunburn is recommended. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Experience reduced UV exposure by about half when donning a wide-brim hat.
Frequently asked questions
How hot is September in Gardendale?
What is the average humidity in September in Gardendale?
How much does it rain in Gardendale in September?
When it does not snow in Gardendale?
How many hours of daylight does Gardendale have in September?
What time are sunrise and sunset in September in Gardendale?
How many hours of sunshine does Gardendale have in September?
What is the UV index intensity in September in Gardendale?
Average temperature in September
Gardendale, AL
- Average high temperature in September: 84.9°F
The warmest month (with the highest average high temperature) is July (90.9°F).
The month with the lowest average high temperature is January (50.7°F).
- Average low temperature in September: 65.3°F
The month with the highest average low temperature is July (70.7°F).
The coldest month (with the lowest average low temperature) is January (35.2°F).
Average pressure in September
Gardendale, AL
- Average pressure in September: 30.01"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
Gardendale, AL
- Average wind speed in September: 4.8mph
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 (4.4mph).
Average humidity in September
Gardendale, AL
- Average humidity in September: 72%
The month with the highest relative humidity is December (79%).
The month with the lowest relative humidity is October (71%).
Average rainfall in September
Gardendale, AL
- Average rainfall in September: 2.4"
The wettest month (with the highest rainfall) is December (4.09").
The driest month (with the least rainfall) is October (2.09").
Average rainfall days in September
Gardendale, AL
- Average rainfall days in September: 14.2 days
The month with the highest number of rainy days is July (21.7 days).
The month with the least rainy days is November (9.1 days).
Average snowfall in September
Gardendale, AL
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.79").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Gardendale, 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).
Average daylight in September /
Average sunshine in September
Gardendale, 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: 10h and 0min).
- Average sunshine in September: 8h and 5min
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
Gardendale, AL
- Average sunshine days in September: 13.3 days
The month with the most sunshine days is October (20.3 days).
The month with the least sunshine days is July (7.2 days).
Average UV index in September
Gardendale, AL
- Average UV index in September: 5
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in September
Gardendale, AL
- Average cloud cover in September: 29
The month with the most cloud cover is February (Cloud cover 48).
The months with the least cloud cover are June and September (Cloud cover 29).
Average visibility in September
Gardendale, 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).
Gardendale, Alabama, USA
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