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 onset of September manifests an average high-temperature of a still hot 88°F (31.1°C), demonstrating a minor variation from the preceding month. Twin, during the nights of September, experiences an average temperature drop to a pleasant 70.2°F (21.2°C).Heat index
September's heat index is computed to be a blistering 104°F (40°C). Heightened precautions are necessary, heat cramps and heat exhaustion are potential risks. Continuous activity could lead to heatstroke.The standards for the heat index are set for locations in shade and under light breezes. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. Elements such as metabolic variations, pregnancy, and physical exertion can shape 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 especially vital to children. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.
In the face of high temperatures, the human body's reflex is to perspire, leveraging sweat evaporation for cooling. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.
Humidity
In Twin, the average relative humidity in September is 76%.Rainfall
In September, in Twin, the rain falls for 17.4 days. Throughout September, 2.8" (71mm) of precipitation is accumulated. In Twin, Mississippi, during the entire year, the rain falls for 177.1 days and collects up to 35.67" (906mm) of precipitation.Snowfall
In Twin, Mississippi, snow does not fall in February through November.Daylight
In Twin, the average length of the day in September is 12h and 20min.On the first day of the month, sunrise is at 6:35 am and sunset at 7:22 pm. On the last day of September, sunrise is at 6:52 am and sunset at 6:45 pm CDT.
Sunshine
In September, the average sunshine in Twin is 9.5h.UV index
The average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the average person.Note: A maximum high daily UV index of 6 during September translates into the following directions:
Adhere to precautions and respect sun safety doctrines. Avoiding sunburn is vital. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Frequently asked questions
How hot does it get in Twin in September?
What is the average humidity in September in Twin?
How much does it rain in Twin in September?
When it does not snow in Twin?
What is the average length of the day in September in Twin?
When are sunrise and sunset in September in Twin?
How many hours of sunshine does Twin have in September?
How high is the UV index in September in Twin?
Average temperature in September
Twin, MS
- Average high temperature in September: 88°F
The warmest months (with the highest average high temperature) are July and August (91.6°F).
The month with the lowest average high temperature is January (58.6°F).
- Average low temperature in September: 70.2°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
Twin, MS
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The months with the lowest atmospheric pressure are June and August (29.97"Hg).
Average wind speed in September
Twin, MS
- Average wind speed in September: 4.6mph
The windiest month (with the highest average wind speed) is April (6.6mph).
The calmest months (with the lowest average wind speed) are July and August (4.3mph).
Average humidity in September
Twin, MS
- Average humidity in September: 76%
The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (70%).
Average rainfall in September
Twin, MS
- Average rainfall in September: 2.8"
The wettest month (with the highest rainfall) is August (4.65").
The driest month (with the least rainfall) is November (1.85").
Average rainfall days in September
Twin, MS
- Average rainfall days in September: 17.4 days
The month with the highest number of rainy days is August (22.1 days).
The month with the least rainy days is November (8.6 days).
Average snowfall in September
Twin, MS
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.24").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Twin, MS
- 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
Twin, MS
- 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 3min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).
Average sunshine days in September
Twin, MS
- Average sunshine days in September: 10.7 days
The month with the most sunshine days is November (18.8 days).
The month with the least sunshine days is August (7.1 days).
Average UV index in September
Twin, MS
- Average UV index in September: 6
The months with the highest UV index are May, June and July (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in September
Twin, MS
- Average cloud cover in September: 30
The month with the most cloud cover is December (Cloud cover 49).
The month with the least cloud cover is October (Cloud cover 28).
Average visibility in September
Twin, MS
- Average visibility in September: 5mi
The months with the highest visibility are January, June, July, August, October and November (6mi).
The months with the lowest visibility are February, March, April, May, September and December (5mi).
Twin, Mississippi, USA
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