September weather forecast
Booneville, MS

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Weather in September

The weather in September in Booneville, Mississippi, signals the arrival of fall. Most notably, the temperatures begin a retreat, dropping to a more manageable average high of 84.7°F (29.3°C). With fall's advent, there are fewer sunlit hours per day, leading to the commencement of cooler evenings. The changing weather combined with reduced cloud cover offers perfectly mild and dry conditions. As autumn advances, October brings additional changes, including precision drops in temperatures and shorter days.

Temperature

The arrival of September sees a recorded average high-temperature of a warm 84.7°F (29.3°C), showing little divergence from the previous month's conditions. In September, Booneville encounters an average low-temperature of 64.6°F (18.1°C) during the night.

Heat index

September's heat index is appraised at a hot 93.2°F (34°C). Greater preventive actions are needed, heat exhaustion and heat cramps are likely. Persistent activity could provoke heatstroke.
Know that the heat index computations account for shaded terrains and slight winds. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is found by incorporating humidity levels into the air temperature measurement. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.

Humidity

In September, the average relative humidity is 73%.

Rainfall

In September, the rain falls for 12.7 days. Throughout September, 2.01" (51mm) of precipitation is accumulated. In Booneville, during the entire year, the rain falls for 158.6 days and collects up to 32.95" (837mm) of precipitation.

Snowfall

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

Daylight

In Booneville, the average length of the day in September is 12h and 23min.
On the first day of the month, sunrise is at 6:27 am and sunset at 7:20 pm. On the last day of September, sunrise is at 6:48 am and sunset at 6:39 pm CDT.

Sunshine

In September, the average sunshine is 9.2h.

UV index

The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the average person.
Note: The maximum daily UV index, 5 in September, converts into the following recommendations:
Put precautions into practice - Ensuring skin and eye safety is a necessity. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Updated: Aug 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in September?

The average high-temperature, in September, in Booneville, is 84.7°F (29.3°C), while the average low-temperature is 64.6°F (18.1°C). In September, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which represents the influence of relative humidity on air temperature, is appraised at 93.2°F (34°C).

What is the average humidity in September?

In Booneville, the average relative humidity in September is 73%.

How many days does it rain in September in Booneville?

In Booneville, in September, during 12.7 rainfall days, 2.01" (51mm) of precipitation is typically accumulated.

When it does not snow?

April through October are months without snowfall.

What is the average length of the day in September?

The average day length in September is 12h and 23min.

When is the sunrise / sunset in September?

On the first day of September, sunrise is at 6:27 am and sunset at 7:20 pm. On the last day of the month, sunrise is at 6:48 am and sunset at 6:39 pm CDT.

How many hours of sunshine does Booneville have in September?

In September, the average sunshine duration is 9.2h.

What is the UV index reading in September?

The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate vulnerability 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
Booneville, MS

Average temperature in September - Booneville, MS
  • Average high temperature in September: 84.7°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 (48.4°F).

  • Average low temperature in September: 64.6°F

The month with the highest average low temperature is July (70.5°F).
The coldest month (with the lowest average low temperature) is January (34°F).

Average pressure in September
Booneville, MS

Average pressure in September - Booneville, MS
  • Average pressure in September: 30.01"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
Booneville, MS

Average wind speed in September - Booneville, MS
  • Average wind speed in September: 5.2mph

The windiest month (with the highest average wind speed) is February (7.6mph).
The calmest month (with the lowest average wind speed) is July (4.5mph).

Average humidity in September
Booneville, MS

Average humidity in September - Booneville, MS
  • Average humidity in September: 73%

The months with the highest relative humidity are March and December (80%).
The month with the lowest relative humidity is October (72%).

Average rainfall in September
Booneville, MS

Average rainfall in September - Booneville, MS
  • Average rainfall in September: 2.01"

The wettest month (with the highest rainfall) is February (3.94").
The driest month (with the least rainfall) is November (1.85").

Average rainfall days in September
Booneville, MS

Average rainfall days in September - Booneville, MS
  • Average rainfall days in September: 12.7 days

The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is November (9.2 days).

Average snowfall in September
Booneville, MS

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

The month with the highest snowfall is February (0.51").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in September
Booneville, MS

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

The month with the highest number of snowfall days is January (2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in September /
Average sunshine in September
Booneville, MS

Average daylight in September / Average sunshine in September - Booneville, 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 1min

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
Booneville, MS

Average sunshine days in September - Booneville, MS
  • Average sunshine days in September: 15.4 days

The month with the most sunshine days is October (19.9 days).
The month with the least sunshine days is July (10.6 days).

Average UV index in September
Booneville, MS

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

The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is December (UV index 2).

Average cloud cover in September
Booneville, MS

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

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

Average visibility in September
Booneville, MS

Average visibility in September - Booneville, 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).

Booneville, Mississippi, USA

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