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
Malvern in September witnesses an average high-temperature of a still hot 86.7°F (30.4°C), indicating a slight variation from August's 90.1°F (32.3°C). The average nighttime temperature lowers to an agreeable 69.6°F (20.9°C) throughout September.Heat index
In September, the average heat index is evaluated at a torrid 98.6°F (37°C). Implement additional preventive actions, heat cramps and heat exhaustion are potential hazards. Heatstroke could follow prolonged activity.Understand that the heat index values take into account shaded locations and mild winds. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is the outcome of merging air's temperature and its humidity metrics. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Youngsters typically face more danger than adults since they sweat less. Their larger skin surface compared to their small bodies and heightened heat production from their activities augment their vulnerability.
In response to overheating, the human body perspires to cool down, mainly through the evaporation of sweat. An elevated level of relative humidity hinders evaporation, leading to decreased heat elimination from the body, inducing a sensation of excess heat. Overheating risks increase with rising body temperatures, especially if heat release isn't efficient.
Humidity
In September, the average relative humidity is 74%.Rainfall
In September, the rain falls for 15 days. Throughout September, 2.13" (54mm) of precipitation is accumulated. Throughout the year, there are 163 rainfall days, and 33.35" (847mm) of precipitation is accumulated.Snowfall
In Malvern, snow does not fall in March through December.Daylight
The average length of the day in September is 12h and 20min.On the first day of the month, sunrise is at 6:18 am and sunset at 7:05 pm. On the last day of September, sunrise is at 6:35 am and sunset at 6:28 pm CDT.
Sunshine
In Malvern, the average sunshine in September is 8.8h.UV index
In September, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum daily UV index, 6 in September, converts into the following recommendations:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is September?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
How many hours of daylight does Malvern have in September?
When is the sunrise / sunset in September?
How long on average sun shines in September?
What is the UV index intensity in September?
Average temperature in September
Malvern, AL
- Average high temperature in September: 86.7°F
The warmest month (with the highest average high temperature) is July (90.5°F).
The month with the lowest average high temperature is January (58.8°F).
- Average low temperature in September: 69.6°F
The month with the highest average low temperature is August (74.1°F).
The coldest month (with the lowest average low temperature) is January (41.7°F).
Average pressure in September
Malvern, AL
- Average pressure in September: 29.99"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June and August (29.98"Hg).
Average wind speed in September
Malvern, AL
- Average wind speed in September: 5.5mph
The windiest months (with the highest average wind speed) are January, February and March (7.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).
Average humidity in September
Malvern, AL
- Average humidity in September: 74%
The months with the highest relative humidity are August and December (76%).
The months with the lowest relative humidity are May and October (69%).
Average rainfall in September
Malvern, AL
- Average rainfall in September: 2.13"
The wettest month (with the highest rainfall) is August (4.65").
The driest month (with the least rainfall) is November (1.69").
Average rainfall days in September
Malvern, AL
- Average rainfall days in September: 15 days
The month with the highest number of rainy days is July (21.3 days).
The month with the least rainy days is November (7.3 days).
Average snowfall in September
Malvern, AL
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.16").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
Malvern, AL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.2 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in September /
Average sunshine in September
Malvern, 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: 8h and 5min
The month with the most sunshine is June (Average sunshine: 10h and 48min).
The months with the least sunshine are February and December (Average sunshine: 5h and 24min).
Average sunshine days in September
Malvern, AL
- Average sunshine days in September: 13.7 days
The month with the most sunshine days is November (21.7 days).
The month with the least sunshine days is July (7.8 days).
Average UV index in September
Malvern, 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 and December (UV index 3).
Average cloud cover in September
Malvern, AL
- Average cloud cover in September: 29
The month with the most cloud cover is December (Cloud cover 43).
The month with the least cloud cover is October (Cloud cover 27).
Average visibility in September
Malvern, 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).
Malvern, Alabama, USA
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