September weather forecast
Duffee, MS

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Weather in September

September, the first month of the autumn in Duffee, is also a hot month, with an average temperature ranging between max 86.7°F (30.4°C) and min 66.4°F (19.1°C).

Temperature

September's weather records an average high-temperature of a still tropical 86.7°F (30.4°C), showing little deviation from August. Duffee's nighttime temperature during September is consistently averaged at a comfortable 66.4°F (19.1°C).

Heat index

In September, the heat index is appraised at a fiery hot 98.6°F (37°C). Adopt extra preventive measures, the occurrence of heat cramps and heat exhaustion is likely. Heatstroke may follow extended activity.
Take into consideration that the heat index values are calculated for shade and light wind conditions. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', comes about by integrating the temperature readings with the humidity levels. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.
Perspiring is a crucial mechanism for the human body, allowing it to release excessive warmth through evaporating sweat. Under conditions of increased relative humidity, the evaporation rate lessens, causing the body to retain more heat than under less humid conditions. When body temperature rises due to an imbalance in heat gain, there's a potential for dehydration and overheating.

Humidity

The average relative humidity in September is 73%.

Rainfall

In Duffee, during September, the rain falls for 13.7 days and regularly aggregates up to 2.83" (72mm) of precipitation. Throughout the year, there are 168.5 rainfall days, and 37.6" (955mm) of precipitation is accumulated.

Snowfall

April through November are months without snowfall.

Daylight

In September, the average length of the day is 12h and 22min.
On the first day of the month, sunrise is at 6:31 am and sunset at 7:19 pm. On the last day of September, sunrise is at 6:49 am and sunset at 6:41 pm CDT.

Sunshine

In Duffee, the average sunshine in September is 9h.

UV index

In September, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum daily UV index, 6 in September, converts into the following recommendations:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Updated: Jul 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it hot during September?

In September, the average high-temperature and low-temperature are 86.7°F (30.4°C) and 66.4°F (19.1°C) respectively. 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 98.6°F (37°C).

What is the average humidity in September?

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

How many days does it rain in September?

In Duffee, during September, the rain falls for 13.7 days and regularly aggregates up to 2.83" (72mm) of precipitation.

When it does not snow?

April through November are months without snowfall.

How many hours of daylight does Duffee have in September?

In Duffee, Mississippi, the average day length in September is 12h and 22min.

When are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 6:31 am and sunset at 7:19 pm. On the last day of the month, sunrise is at 6:49 am and sunset at 6:41 pm CDT.

How many hours of sunshine does Duffee have in September?

In September, the average sunshine duration is 9h.

What is the UV index intensity in September?

In Duffee, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from 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
Duffee, MS

Average temperature in September - Duffee, MS
  • Average high temperature in September: 86.7°F

The warmest month (with the highest average high temperature) is July (91.4°F).
The month with the lowest average high temperature is January (53.4°F).

  • Average low temperature in September: 66.4°F

The months with the highest average low temperature are July and August (71.2°F).
The coldest month (with the lowest average low temperature) is January (37.2°F).

Average pressure in September
Duffee, MS

Average pressure in September - Duffee, MS
  • Average pressure in September: 29.99"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
Duffee, MS

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

The windiest months (with the highest average wind speed) are January and February (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).

Average humidity in September
Duffee, MS

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

The month with the highest relative humidity is December (81%).
The month with the lowest relative humidity is October (70%).

Average rainfall in September
Duffee, MS

Average rainfall in September - Duffee, MS
  • Average rainfall in September: 2.83"

The wettest month (with the highest rainfall) is December (3.98").
The driest month (with the least rainfall) is November (2.17").

Average rainfall days in September
Duffee, MS

Average rainfall days in September - Duffee, MS
  • Average rainfall days in September: 13.7 days

The month with the highest number of rainy days is July (21 days).
The month with the least rainy days is November (9 days).

Average snowfall in September
Duffee, MS

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

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

Average snowfall days in September
Duffee, MS

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

The month with the highest number of snowfall days is February (1 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
Duffee, MS

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

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 6min).

  • Average sunshine in September: 9h and 0min

The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 4h and 42min).

Average sunshine days in September
Duffee, MS

Average sunshine days in September - Duffee, MS
  • Average sunshine days in September: 14.6 days

The month with the most sunshine days is October (20.1 days).
The month with the least sunshine days is July (8.3 days).

Average UV index in September
Duffee, MS

Average UV index in September - Duffee, MS
  • Average UV index in September: 6

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).

Average cloud cover in September
Duffee, MS

Average cloud cover in September - Duffee, MS
  • Average cloud cover in September: 32

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 30).

Average visibility in September
Duffee, MS

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

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

Duffee, Mississippi, USA

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