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
September ushers in an average high-temperature of a still hot 87.8°F (31°C), aligning closely with the preceding month. September nights are marked by an average low-temperature of 68°F (20°C).Heat index
September's heat index is appraised at a torrid 102.2°F (39°C). Take greater precautions, heat exhaustion and heat cramps may be expected. Heatstroke could result from lengthy activity.Be informed that the heat index values are oriented around shady conditions and gentle breezes. Heat index values may be hiked up by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. Consider the fact that direct sun exposure can influence how hot one feels, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
When it comes to cooling down, the human body's primary method is through perspiration, making use of sweat evaporation to eliminate excess heat. When air moisture content is high, the cooling process through evaporation is not as efficient, leading to an ineffective body cooling process and a feeling of overheating. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.
Humidity
The average relative humidity in September is 74%.Rainfall
In Alcorn, in September, it is raining for 12.7 days, with typically 2.2" (56mm) of accumulated precipitation. In Alcorn, during the entire year, the rain falls for 154.1 days and collects up to 35.12" (892mm) of precipitation.Snowfall
In Alcorn, snow does not fall in April through December.Daylight
In September, the average length of the day in Alcorn is 12h and 21min.On the first day of September, sunrise is at 6:40 am and sunset at 7:28 pm. On the last day of the month, sunrise is at 6:58 am and sunset at 6:50 pm CDT.
Sunshine
In Alcorn, the average sunshine in September is 9.7h.UV index
In Alcorn, Mississippi, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum daily UV index of 6 in September converts into the following recommendations:
Prevent overexposure. Protection from the sun's harmful effects is needed. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. Opt for tightly woven and loose clothing to enhance protection from the Sun.
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 Alcorn have in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Alcorn, MS
- Average high temperature in September: 87.8°F
The warmest month (with the highest average high temperature) is July (91.2°F).
The month with the lowest average high temperature is January (55°F).
- Average low temperature in September: 68°F
The month with the highest average low temperature is August (73°F).
The coldest month (with the lowest average low temperature) is January (40.3°F).
Average pressure in September
Alcorn, MS
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in September
Alcorn, MS
- Average wind speed in September: 5.3mph
The windiest month (with the highest average wind speed) is February (8.3mph).
The calmest months (with the lowest average wind speed) are July and September (5.3mph).
Average humidity in September
Alcorn, MS
- Average humidity in September: 74%
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is October (69%).
Average rainfall in September
Alcorn, MS
- Average rainfall in September: 2.2"
The wettest month (with the highest rainfall) is April (3.43").
The driest month (with the least rainfall) is November (2.13").
Average rainfall days in September
Alcorn, MS
- Average rainfall days in September: 12.7 days
The month with the highest number of rainy days is August (15.5 days).
The month with the least rainy days is October (8.5 days).
Average snowfall in September
Alcorn, MS
- 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, November and December (0").
Average snowfall days in September
Alcorn, MS
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.8 days).
The months with the least snowfall days are April, May, June, July, August, September, October, November and December (0 days).
Average daylight in September /
Average sunshine in September
Alcorn, MS
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).
- Average sunshine in September: 9h and 4min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).
Average sunshine days in September
Alcorn, MS
- Average sunshine days in September: 16.2 days
The month with the most sunshine days is October (21.4 days).
The month with the least sunshine days is February (13.3 days).
Average UV index in September
Alcorn, MS
- Average UV index in September: 6
The months with the highest UV index are 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
Alcorn, MS
- Average cloud cover in September: 30
The month with the most cloud cover is February (Cloud cover 48).
The months with the least cloud cover are June and October (Cloud cover 28).
Average visibility in September
Alcorn, MS
- 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).
Alcorn, Mississippi, USA
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