September weather forecast
Deen, MS

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Weather in September

September, the first month of the autumn in Deen, is still a hot month, with an average temperature fluctuating between 87.4°F (30.8°C) and 67.8°F (19.9°C).

Temperature

September's weather records an average high-temperature of a still hot 87.4°F (30.8°C), showing little deviation from August. During the month of September, Deen's nighttime temperature lowers to an average of 67.8°F (19.9°C).

Heat index

For September, the heat index is computed to be a torrid 102.2°F (39°C). Extra precautions are necessary, heat cramps and heat exhaustion are plausible outcomes. Extended activity could lead to heatstroke.
In the scope of the heat index, its values resonate with shade and light wind conditions. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital 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.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. In the presence of high relative humidity, the evaporation rate diminishes, resulting in the body retaining more warmth compared to dry conditions. Rising body temperatures resulting from an imbalance in heat absorption can lead to potential thermal issues.

Humidity

In Deen, the average relative humidity in September is 75%.

Rainfall

In September, in Deen, the rain falls for 15 days. Throughout September, 2.56" (65mm) of precipitation is accumulated. In Deen, during the entire year, the rain falls for 168 days and collects up to 34.17" (868mm) of precipitation.

Snowfall

In Deen, snow does not fall in April through November.

Daylight

In September, the average length of the day is 12h and 21min.
On the first day of September, sunrise is at 6:34 am and sunset at 7:22 pm. On the last day of the month, sunrise is at 6:52 am and sunset at 6:44 pm CDT.

Sunshine

In Deen, the average sunshine in September is 9.3h.

UV index

The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: In September, the UV index of 5 transforms into the following advice:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
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Frequently asked questions

How hot is it in Deen in September?

The high-temperature, in September, in Deen, is 87.4°F (30.8°C), while the low-temperature averages to 67.8°F (19.9°C). In September, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines air temperature and relative humidity, is computed to be 102.2°F (39°C).

What is the average humidity in September in Deen?

In September, the average relative humidity in Deen, Mississippi, is 75%.

How much does it rain in Deen in September?

In Deen, Mississippi, in September, during 15 rainfall days, 2.56" (65mm) of precipitation is typically accumulated.

When it does not snow in Deen?

In Deen, snow does not fall in April through November.

What is the average length of the day in September in Deen?

In Deen, Mississippi, the average day length in September is 12h and 21min.

When are sunrise and sunset in September in Deen?

On the first day of September, sunrise is at 6:34 am and sunset at 7:22 pm. On the last day of the month, sunrise is at 6:52 am and sunset at 6:44 pm CDT.

How many hours of sunshine does Deen have in September?

The average sunshine duration in September in Deen, Mississippi, is 9.3h.

What is the UV index reading in September in Deen?

In Deen, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium health risk from unsafe exposure to Sun's UV rays.
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
Deen, MS

Average temperature in September - Deen, MS
  • Average high temperature in September: 87.4°F

The warmest month (with the highest average high temperature) is August (91.4°F).
The month with the lowest average high temperature is January (55.9°F).

  • Average low temperature in September: 67.8°F

The month with the highest average low temperature is July (72.1°F).
The coldest month (with the lowest average low temperature) is January (39°F).

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Average pressure in September
Deen, MS

Average pressure in September - Deen, MS
  • Average pressure in September: 29.99"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).

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Average wind speed in September
Deen, MS

Average wind speed in September - Deen, MS
  • Average wind speed in September: 5mph

The windiest months (with the highest average wind speed) are January, February and April (7.3mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).

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Average humidity in September
Deen, MS

Average humidity in September - Deen, MS
  • Average humidity in September: 75%

The month with the highest relative humidity is December (82%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in September
Deen, MS

Average rainfall in September - Deen, MS
  • Average rainfall in September: 2.56"

The wettest month (with the highest rainfall) is December (3.74").
The driest month (with the least rainfall) is November (2.01").

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Average rainfall days in September
Deen, MS

Average rainfall days in September - Deen, MS
  • Average rainfall days in September: 15 days

The month with the highest number of rainy days is August (20.3 days).
The month with the least rainy days is November (8.7 days).

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Average snowfall in September
Deen, MS

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

The month with the highest snowfall is January (0.24").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

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Average snowfall days in September
Deen, MS

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

The months with the highest number of snowfall days are January and February (0.3 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

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

Average daylight in September / Average sunshine in September - Deen, 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 2min

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The months with the least sunshine are February and December (Average sunshine: 4h and 54min).

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Average sunshine days in September
Deen, MS

Average sunshine days in September - Deen, MS
  • Average sunshine days in September: 13.4 days

The month with the most sunshine days is October (19.9 days).
The month with the least sunshine days is August (9 days).

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Average UV index in September
Deen, MS

Average UV index in September - Deen, 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 and December (UV index 3).

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Average cloud cover in September
Deen, MS

Average cloud cover in September - Deen, MS
  • Average cloud cover in September: 31

The months with the most cloud cover are February and December (Cloud cover 49).
The month with the least cloud cover is October (Cloud cover 29).

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Average visibility in September
Deen, MS

Average visibility in September - Deen, MS
  • Average visibility in September: 5mi

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

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Deen, Mississippi, USA

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