September weather forecast and climate
Nellie, AL

Weather in September

September, the first month of the autumn, in Nellie, is also a hot month, with average temperature ranging between min 67.5°F (19.7°C) and max 88.3°F (31.3°C).

Temperature

In Nellie, the average high-temperature in September is relatively the same as in August - a still hot 88.3°F (31.3°C). In September, the average low-temperature is 67.5°F (19.7°C).

Heat index

The average heat index is estimated at a sweltering 102.9°F (39.4°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel', 'apparent temperature', 'feels like', or 'felt air temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (clothing, wind, differences in body mass, height, and shape). Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. 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 heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

In Nellie, the average relative humidity is 73%.

Rainfall

In Nellie, in September, it is raining for 15.7 days, with typically 2.44" (62mm) of accumulated precipitation. In Nellie, during the entire year, the rain falls for 171.5 days and collects up to 35.47" (901mm) of precipitation.

Snowfall

In Nellie snow does not fall in April through November.

Daylight

In September, the average length of the day in Nellie is 12.3h.

Sunshine

In September, the average sunshine is 8.8h.

UV index

In Nellie, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health hazard from the exposure to the Sun's UV radiation for average individuals.
Note: The average daily UV index of 6 in September transform into the following instructions:
Take precautions against overexposure. Protection against sun damage is needed. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the temperature in September in Nellie?

The average high-temperature, in September, in Nellie, is 88.3°F (31.3°C), while the average low-temperature is 67.5°F (19.7°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), that calculates temperature value influenced by the moisture in the air, in September is appraised at 102.9°F (39.4°C).

What is the average humidity in September in Nellie?

In September, the average relative humidity is 73%.

How many days does it rain in September in Nellie?

In September, in Nellie, Alabama, the rain falls for 15.7 days. Throughout September, 2.44" (62mm) of precipitation is accumulated.

When it does not snow in Nellie?

In Nellie, Alabama, snow does not fall in April through November.

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

In September, the average length of the day in Nellie is 12.3h.

How long on average sun shines in September in Nellie?

The average sunshine in September is 8.8h.

How high is the UV index in September in Nellie?

In Nellie, Alabama, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health threat from the exposure to the Sun's UV radiation.

Average temperature in September
Nellie, AL

Average temperature in September - Nellie, AL
  • Average high temperature in September: 88.3°F

The warmest month (with the highest average high temperature) is July (93.2°F).
The month with the lowest average high temperature is January (55.9°F).

  • Average low temperature in September: 67.5°F

Months with the highest average low temperature are July and August (72.1°F).
The coldest month (with the lowest average low temperature) is January (38.8°F).

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Average pressure in September
Nellie, AL

Average pressure in September - Nellie, AL
  • Average pressure in September: 29.99"

The month with the highest atmospheric pressure is January (30.16").
Months with the lowest atmospheric pressure are June and August (29.97").

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Average wind speed in September
Nellie, AL

Average wind speed in September - Nellie, AL
  • Average wind speed in September: 4.8mph

The windiest month (with the highest average wind speed) is February (6.7mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).

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Average humidity in September
Nellie, AL

Average humidity in September - Nellie, AL
  • Average humidity in September: 73%

The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (70%).

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Average rainfall in September
Nellie, AL

Average rainfall in September - Nellie, AL
  • Average rainfall in September: 2.44"

The wettest month (with the highest rainfall) is December (3.94").
The driest month (with the least rainfall) is November (1.93").

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Average rainfall days in September
Nellie, AL

Average rainfall days in September - Nellie, AL
  • Average rainfall days in September: 15.7 days

The month with the highest number of rainy days is July (22.5 days).
The month with the least rainy days is November (8.3 days).

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Average snowfall in September
Nellie, AL

Average snowfall in September - Nellie, AL
  • Average snowfall in September: 0"

The month with the highest snowfall is March (0.31").
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
Nellie, AL

Average snowfall days in September - Nellie, AL
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (0.6 days).
Months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average daylight in September /
Average sunshine in September
Nellie, AL

Average daylight in September / Average sunshine in September - Nellie, AL
  • Average daylight in September: 12.3h

The month with the longest days is June (Average daylight: 14.2h).
The month with the shortest days is December (Average daylight: 10.1h).

  • Average sunshine in September: 8.8h

The month with the most sunshine is June (Average sunshine: 10.4h).
The month with the least sunshine is February (Average sunshine: 4.9h).

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Average sunshine days in September
Nellie, AL

Average sunshine days in September - Nellie, AL
  • Average sunshine days in September: 12.7 days

Months with the most sunshine days are October and November (20.5 days).
The month with the least sunshine days is July (6.6 days).

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Average UV index in September
Nellie, AL

Average UV index in September - Nellie, AL
  • Average UV index in September: 6

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

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Average cloud cover in September
Nellie, AL

Average cloud cover in September - Nellie, AL
  • Average cloud cover in September: 32

The month with the most cloud cover is December (Cloud cover 49).
The month with the least cloud cover is October (Cloud cover 31).

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Average visibility in September
Nellie, AL

Average visibility in September - Nellie, AL
  • Average visibility in September: 5mi

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

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