September weather forecast
Banner, MS

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Banner, Mississippi, with an average temperature fluctuating between 85.6°F (29.8°C) and 65.3°F (18.5°C).

Temperature

The ushering in of September brings an average high-temperature of a warm 85.6°F (29.8°C), closely mirroring the 90.5°F (32.5°C) of August. Banner experiences an average low-temperature of 65.3°F (18.5°C) in the month of September.

Heat index

September's heat index is calculated to be a sweltering 95°F (35°C). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.
In terms of the heat index, values are set with light wind and shade conditions in mind. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is a numerical representation of warmth when taking temperature and moisture levels into account. 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. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.
Perspiration is the body's default response to elevated temperatures, as it promotes the evaporation of sweat to achieve cooling. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. When body temperature rises due to excess heat gain beyond its removal capability, one might experience heat-related disorders.

Humidity

In Banner, the average relative humidity in September is 72%.

Rainfall

In Banner, during September, the rain falls for 12.5 days and regularly aggregates up to 1.93" (49mm) of precipitation. In Banner, during the entire year, the rain falls for 153 days and collects up to 30.59" (777mm) of precipitation.

Snowfall

April through October are months without snowfall in Banner.

Daylight

The average length of the day in September is 12h and 22min.
On the first day of the month, sunrise is at 6:31 am and sunset at 7:23 pm. On the last day of September, sunrise is at 6:51 am and sunset at 6:42 pm CDT.

Sunshine

The average sunshine in September is 9.4h.

UV index

In September, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the ordinary person.
Note: A typical high UV index of 5 in September suggests the following recommendations:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Updated: Jul 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in September?

The high-temperature, in September, in Banner, is 85.6°F (29.8°C), while the low-temperature averages to 65.3°F (18.5°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which factors the actual air temperature with the relative humidity, in September is calculated to be 95°F (35°C).

What is the average humidity in September?

The average relative humidity in September is 72%.

How many days does it rain in September?

In September, the rain falls for 12.5 days. Throughout September, 1.93" (49mm) of precipitation is accumulated.

When it does not snow?

In Banner, snow does not fall in April through October.

How many hours of daylight does Banner have in September?

The average day length in September is 12h and 22min.

When is the sunrise / sunset in September?

In September, on the first day of the month, sunrise is at 6:31 am and sunset at 7:23 pm. On the last day of the month, sunrise is at 6:51 am and sunset at 6:42 pm CDT.

How long on average sun shines in September?

In Banner, the average sunshine duration in September is 9.4h.

What is the UV index reading in September?

In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium health risk from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Banner, MS

Average temperature in September - Banner, MS
  • Average high temperature in September: 85.6°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 (50.2°F).

  • Average low temperature in September: 65.3°F

The month with the highest average low temperature is July (71.1°F).
The coldest month (with the lowest average low temperature) is January (35.1°F).

Average pressure in September
Banner, MS

Average pressure in September - Banner, MS
  • Average pressure in September: 30"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
Banner, MS

Average wind speed in September - Banner, MS
  • Average wind speed in September: 5.3mph

The windiest months (with the highest average wind speed) are February and April (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

Average humidity in September
Banner, MS

Average humidity in September - Banner, MS
  • Average humidity in September: 72%

The month with the highest relative humidity is December (81%).
The month with the lowest relative humidity is October (71%).

Average rainfall in September
Banner, MS

Average rainfall in September - Banner, MS
  • Average rainfall in September: 1.93"

The wettest month (with the highest rainfall) is July (3.27").
The driest month (with the least rainfall) is November (1.57").

Average rainfall days in September
Banner, MS

Average rainfall days in September - Banner, MS
  • Average rainfall days in September: 12.5 days

The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is November (8.5 days).

Average snowfall in September
Banner, MS

Average snowfall in September - Banner, MS
  • Average snowfall in September: 0"

The month with the highest snowfall is February (0.43").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in September
Banner, MS

Average snowfall days in September - Banner, MS
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (1.5 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
Banner, MS

Average daylight in September / Average sunshine in September - Banner, MS
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in September: 9h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

Average sunshine days in September
Banner, MS

Average sunshine days in September - Banner, MS
  • Average sunshine days in September: 15.5 days

The month with the most sunshine days is October (20.8 days).
The month with the least sunshine days is July (10.3 days).

Average UV index in September
Banner, MS

Average UV index in September - Banner, MS
  • Average UV index in September: 5

The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).

Average cloud cover in September
Banner, MS

Average cloud cover in September - Banner, MS
  • Average cloud cover in September: 29

The month with the most cloud cover is February (Cloud cover 50).
The months with the least cloud cover are June and September (Cloud cover 29).

Average visibility in September
Banner, MS

Average visibility in September - Banner, MS
  • Average visibility in September: 6mi

The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).

Banner, Mississippi, USA

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