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 transition into September reveals an average high-temperature of a still tropical 86°F (30°C), mirroring a close resemblance to August. Throughout September, Summerdale witnesses a nighttime temperature average of 74.5°F (23.6°C).Heat index
September's mean heat index is appraised at a fiery hot 96.8°F (36°C). Apply extra caution, heat cramps and heat exhaustion could happen. Heatstroke might occur with long-duration activity.Heat index guidelines indicate values are for light wind scenarios and shaded regions. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values hold particular importance for children. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.
In the face of high temperatures, the human body's reflex is to perspire, leveraging sweat evaporation for cooling. When relative humidity is at high levels, the evaporation rate lessens, causing the body to keep more heat than it would in less humid conditions. If heat absorption isn't effectively countered by the body's cooling methods, body temperature surges, hinting at potential problems.
Humidity
In September, the average relative humidity is 74%.Rainfall
In September, in Summerdale, Alabama, the rain falls for 13.4 days. Throughout September, 0.91" (23mm) of precipitation is accumulated. Throughout the year, in Summerdale, there are 130.4 rainfall days, and 13.7" (348mm) of precipitation is accumulated.Snowfall
In Summerdale, snow does not fall in February through December.Daylight
In September, the average length of the day is 12h and 20min.On the first day of the month, sunrise is at 6:27 am and sunset at 7:13 pm. On the last day of September, in Summerdale, sunrise is at 6:44 am and sunset at 6:36 pm CDT.
Sunshine
In September, the average sunshine is 9.8h.UV index
In September, the average daily maximum UV index in Summerdale is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum daily UV index of 6 during September translates into the following directions:
Ward off overexposure. Defence against solar harm is crucial. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Frequently asked questions
How hot does it get in Summerdale in September?
What is the average humidity in September in Summerdale?
How many days does it rain in September in Summerdale?
When it does not snow in Summerdale?
How many hours of daylight does Summerdale have in September?
What time are sunrise and sunset in September in Summerdale?
How many hours of sunshine does Summerdale have in September?
How high is the UV index in September in Summerdale?
Average temperature in September
Summerdale, AL
- Average high temperature in September: 86°F
The warmest month (with the highest average high temperature) is August (89.1°F).
The month with the lowest average high temperature is January (59.2°F).
- Average low temperature in September: 74.5°F
The month with the highest average low temperature is August (78.4°F).
The coldest month (with the lowest average low temperature) is January (46.4°F).
Average pressure in September
Summerdale, AL
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.97"Hg).
Average wind speed in September
Summerdale, AL
- Average wind speed in September: 6.8mph
The windiest month (with the highest average wind speed) is January (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (6.5mph).
Average humidity in September
Summerdale, AL
- Average humidity in September: 74%
The months with the highest relative humidity are February and December (79%).
The month with the lowest relative humidity is October (71%).
Average rainfall in September
Summerdale, AL
- Average rainfall in September: 0.91"
The wettest month (with the highest rainfall) is August (1.89").
The driest month (with the least rainfall) is May (0.59").
Average rainfall days in September
Summerdale, AL
- Average rainfall days in September: 13.4 days
The month with the highest number of rainy days is July (17.4 days).
The month with the least rainy days is November (6.8 days).
Average snowfall in September
Summerdale, AL
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.04").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
Summerdale, AL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Summerdale, AL
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).
- Average sunshine in September: 9h and 5min
The months with the most sunshine are May and June (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in September
Summerdale, AL
- Average sunshine days in September: 12.5 days
The month with the most sunshine days is November (21.1 days).
The month with the least sunshine days is July (8.1 days).
Average UV index in September
Summerdale, AL
- Average UV index in September: 6
The months with the highest UV index are May, June, July and August (UV index 7).
The months with the lowest UV index are January, February and December (UV index 4).
Average cloud cover in September
Summerdale, AL
- Average cloud cover in September: 24
The month with the most cloud cover is December (Cloud cover 42).
The month with the least cloud cover is October (Cloud cover 22).
Average visibility in September
Summerdale, 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).
Summerdale, Alabama, USA
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