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
The initiation of September records an average high-temperature of a warm 85.5°F (29.7°C), displaying a near consistency with the previous month. In September, Alabaster encounters an average low-temperature of 65.7°F (18.7°C) during the night.Heat index
For most parts of September, the heat index is computed to be a torrid 95°F (35°C). Greater safety measures are needed, risk of heat exhaustion and heat cramps is high. Continuous activity might trigger heatstroke.Heat index details are generally centered around shaded locations and a mild breeze. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'real feel' or 'apparent temperature', evaluates the perceived heat by adding the effect of moisture in the air. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
Sweat evaporation, driven by perspiration, is the method the human body uses to rid itself of excessive warmth. Increased relative humidity interferes with body cooling by slowing the rate of evaporation, resulting in a slower body cooling rate and a heightened feeling of heat. Heat absorption that surpasses the body's shedding capability can lead to overheating and varying levels of dehydration.
Humidity
In Alabaster, the average relative humidity in September is 73%.Rainfall
The months with the least rainfall in Alabaster are September and October Rain falls for 11.9 days and accumulates 1.26" (32mm) of rain.Snowfall
March through November 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 6:22 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 Alabaster, the average sunshine in September is 9h.UV index
In Alabaster, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the average person.Note: A maximum high daily UV index of 5 during September translates into the following directions:
Ensure safety - Imperative it is to shield skin and eyes from damage. Avoiding the Sun during its peak radiation time around midday is a healthy practice. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Frequently asked questions
How hot is it in Alabaster in September?
What is the average humidity in September in Alabaster?
What is the driest month in Alabaster?
How much does it rain in Alabaster in September?
When it does not snow in Alabaster?
How many hours of daylight does Alabaster have in September?
When are sunrise and sunset in September in Alabaster?
How long on average sun shines in September in Alabaster?
What is the UV index intensity in September in Alabaster?
Average temperature in September
Alabaster, AL
- Average high temperature in September: 85.5°F
The warmest month (with the highest average high temperature) is July (90.3°F).
The month with the lowest average high temperature is January (51.4°F).
- Average low temperature in September: 65.7°F
The month with the highest average low temperature is August (71.2°F).
The coldest month (with the lowest average low temperature) is January (36.3°F).
Average pressure in September
Alabaster, 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).
Average wind speed in September
Alabaster, AL
- Average wind speed in September: 5mph
The windiest months (with the highest average wind speed) are January, February and March (7.3mph).
The calmest months (with the lowest average wind speed) are July and August (4.4mph).
Average humidity in September
Alabaster, AL
- Average humidity in September: 73%
The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (71%).
Average rainfall in September
Alabaster, AL
- Average rainfall in September: 1.26"
The wettest month (with the highest rainfall) is August (2.52").
The driest months (with the least rainfall) are September and October (1.26").
Average rainfall days in September
Alabaster, AL
- Average rainfall days in September: 11.9 days
The month with the highest number of rainy days is July (19.7 days).
The month with the least rainy days is November (6.7 days).
Average snowfall in September
Alabaster, AL
- Average snowfall in September: 0"
The month with the highest snowfall is December (0.47").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Alabaster, AL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (1 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
Alabaster, 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: 9h and 0min
The months with the most sunshine are June and July (Average sunshine: 10h and 36min).
The months with the least sunshine are February and December (Average sunshine: 4h and 54min).
Average sunshine days in September
Alabaster, AL
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is November (21.9 days).
The month with the least sunshine days is July (9 days).
Average UV index in September
Alabaster, AL
- Average UV index in September: 5
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January, February and December (UV index 3).
Average cloud cover in September
Alabaster, AL
- Average cloud cover in September: 29
The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is September (Cloud cover 29).
Average visibility in September
Alabaster, 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).
Alabaster, Alabama, USA
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