September weather forecast
Black Bayou, MS

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Weather in September

September, the first month of the autumn in Black Bayou, is also a moderately hot month, with temperature in the range of an average low of 66.9°F (19.4°C) and an average high of 85.5°F (29.7°C).

Temperature

Welcoming September, Black Bayou notes an average high-temperature of a warm 85.5°F (29.7°C), nearly consistent with August's 88.9°F (31.6°C). Black Bayou, during the month of September, experiences an average low-temperature of 66.9°F (19.4°C).

Heat index

The heat index value for September is computed to be a torrid 95°F (35°C). Apply extra caution, heat cramps and heat exhaustion could happen. Heatstroke might occur with long-duration activity.
In reference to the heat index, it's for places in shade and with a slight wind. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is the result of factoring in humidity to the air temperature, indicating perceived warmth. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.
Humans rely on perspiration as a cooling mechanism, wherein the evaporating sweat counteracts excessive warmth. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. When the body's heat gain surpasses its removal capacity, body temperature starts to climb, leading to potential heat-related ailments.

Humidity

The average relative humidity in September is 71%.

Rainfall

September is the month with the least rainfall. Rain falls for 12.5 days and accumulates 1.97" (50mm) of precipitation.

Snowfall

In Black Bayou, snow does not fall in April through October.

Daylight

In Black Bayou, the average length of the day in September is 12h and 22min.
On the first day of the month, sunrise is at 6:35 am and sunset at 7:26 pm. On the last day of September, in Black Bayou, sunrise is at 6:55 am and sunset at 6:46 pm CDT.

Sunshine

The average sunshine in September is 9.6h.

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 radiation for the ordinary person.
Note: The average daily UV index of 5 in September transforms into the following instructions:
Take precautions - Protection against sunburn is recommended. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
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Frequently asked questions

Is it hot in Black Bayou during September?

An average high-temperature, in September, in Black Bayou, is 85.5°F (29.7°C) and the average low-temperature is 66.9°F (19.4°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines air temperature and relative humidity, in September is computed to be 95°F (35°C).

What is the average humidity in September in Black Bayou?

In Black Bayou, Mississippi, the average relative humidity in September is 71%.

What is the driest month in Black Bayou?

September is the month with the least rainfall in Black Bayou. Rain falls for 12.5 days and accumulates 1.97" (50mm) of precipitation.

How much does it rain in Black Bayou in September?

In Black Bayou, Mississippi, in September, during 12.5 rainfall days, 1.97" (50mm) of precipitation is typically accumulated.

When it does not snow in Black Bayou?

April through October are months without snowfall.

How many hours of daylight does Black Bayou have in September?

The average day length in September in Black Bayou, Mississippi, is 12h and 22min.

When is the sunrise / sunset in September in Black Bayou?

In September, on the first day of the month, sunrise is at 6:35 am and sunset at 7:26 pm. On the last day of the month, in Black Bayou, sunrise is at 6:55 am and sunset at 6:46 pm CDT.

How long on average sun shines in September in Black Bayou?

The average sunshine duration in September is 9.6h.

What is the UV index reading in September in Black Bayou?

In Black Bayou, Mississippi, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate health threat from unprotected exposure to 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
Black Bayou, MS

Average temperature in September - Black Bayou, MS
  • Average high temperature in September: 85.5°F

The warmest month (with the highest average high temperature) is July (90°F).
The month with the lowest average high temperature is January (50.2°F).

  • Average low temperature in September: 66.9°F

The month with the highest average low temperature is July (73.4°F).
The coldest month (with the lowest average low temperature) is January (36.9°F).

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Average pressure in September
Black Bayou, MS

Average pressure in September - Black Bayou, 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 (29.95"Hg).

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Average wind speed in September
Black Bayou, MS

Average wind speed in September - Black Bayou, MS
  • Average wind speed in September: 5.8mph

The windiest month (with the highest average wind speed) is February (9.5mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

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Average humidity in September
Black Bayou, MS

Average humidity in September - Black Bayou, MS
  • Average humidity in September: 71%

The months with the highest relative humidity are February, March and December (78%).
The month with the lowest relative humidity is October (67%).

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Average rainfall in September
Black Bayou, MS

Average rainfall in September - Black Bayou, MS
  • Average rainfall in September: 1.97"

The wettest month (with the highest rainfall) is April (4.72").
The driest month (with the least rainfall) is September (1.97").

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Average rainfall days in September
Black Bayou, MS

Average rainfall days in September - Black Bayou, MS
  • Average rainfall days in September: 12.5 days

The months with the highest number of rainy days are July and August (17.6 days).
The month with the least rainy days is October (9.3 days).

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Average snowfall in September
Black Bayou, MS

Average snowfall in September - Black Bayou, MS
  • Average snowfall in September: 0"

The month with the highest snowfall is February (0.91").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in September
Black Bayou, MS

Average snowfall days in September - Black Bayou, MS
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (1.3 days).
The months with the least snowfall days are April, May, June, July, August and September (0 days).

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Average daylight in September /
Average sunshine in September
Black Bayou, MS

Average daylight in September / Average sunshine in September - Black Bayou, 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 4min

The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

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Average sunshine days in September
Black Bayou, MS

Average sunshine days in September - Black Bayou, MS
  • Average sunshine days in September: 14.4 days

The month with the most sunshine days is October (20.2 days).
The month with the least sunshine days is August (11.1 days).

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Average UV index in September
Black Bayou, MS

Average UV index in September - Black Bayou, MS
  • Average UV index in September: 5

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

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Average cloud cover in September
Black Bayou, MS

Average cloud cover in September - Black Bayou, MS
  • Average cloud cover in September: 28

The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is June (Cloud cover 26).

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Average visibility in September
Black Bayou, MS

Average visibility in September - Black Bayou, 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).

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Black Bayou, Mississippi, USA

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