September weather forecast
Lillian, AL

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Weather in September

September, the first month of the autumn in Lillian, is still a tropical month, with an average temperature varying between 72.5°F (22.5°C) and 88°F (31.1°C).

Temperature

The start of September marks an average high-temperature of a still hot 88°F (31.1°C), hardly distinguishable from the conditions in August. The nighttime temperature, during September, averages of 72.5°F (22.5°C).

Heat index

For September, the heat index is appraised at a very hot 102.2°F (39°C). Implement more preventive measures, heat cramps and heat exhaustion are probable. Heatstroke might result from extended activity.
Consider that heat index readings are for situations in the shade and light wind. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', binds temperature metrics with humidity values to give a sense of the actual warmth. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are quite important for children. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
The physiological response of the human body to excess warmth is to perspire, thereby cooling itself through sweat evaporation. A surge in relative humidity can disrupt the body's normal cooling function by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. Heat-related challenges, like dehydration, can be anticipated when body heat isn't managed effectively.

Humidity

The average relative humidity in September is 75%.

Rainfall

In Lillian, in September, it is raining for 17.7 days, with typically 3.35" (85mm) of accumulated precipitation. Throughout the year, there are 167.7 rainfall days, and 36.69" (932mm) of precipitation is accumulated.

Snowfall

In Lillian, Alabama, snow does not fall in February through December.

Daylight

In Lillian, Alabama, the average length of the day in September is 12h and 20min.
On the first day of the month, sunrise is at 6:26 am and sunset at 7:12 pm. On the last day of September, sunrise is at 6:43 am and sunset at 6:35 pm CDT.

Sunshine

The average sunshine in September is 9.4h.

UV index

In September, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for average individuals.
Note: The daily high UV index of 6 during September translates into the following recommendations:
Guard against overexposure. Protection from sun-induced harm is essential. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. Stay sun-safe with clothing that is both closely woven and worn loosely.
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Frequently asked questions

How hot does it get in Lillian in September?

The average high-temperature, in September, in Lillian, is 88°F (31.1°C), while the average low-temperature is 72.5°F (22.5°C). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which factors the actual air temperature with the relative humidity, in September is appraised at 102.2°F (39°C).

What is the average humidity in September in Lillian?

The average relative humidity in September in Lillian is 75%.

How much does it rain in Lillian in September?

In Lillian, in September, during 17.7 rainfall days, 3.35" (85mm) of precipitation is typically accumulated.

When it does not snow in Lillian?

February through December are months without snowfall.

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

The average day length in September in Lillian, Alabama, is 12h and 20min.

When is the sunrise / sunset in September in Lillian?

On the first day of September in Lillian, sunrise is at 6:26 am and sunset at 7:12 pm. On the last day of the month, sunrise is at 6:43 am and sunset at 6:35 pm CDT.

How long on average sun shines in September in Lillian?

In Lillian, the average sunshine duration in September is 9.4h.

How high is the UV index in September in Lillian?

In Lillian, Alabama, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health risk 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
Lillian, AL

Average temperature in September - Lillian, AL
  • Average high temperature in September: 88°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 (59.2°F).

  • Average low temperature in September: 72.5°F

The month with the highest average low temperature is August (76.3°F).
The coldest month (with the lowest average low temperature) is January (44.2°F).

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Average pressure in September
Lillian, AL

Average pressure in September - Lillian, AL
  • Average pressure in September: 29.98"Hg

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

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Average wind speed in September
Lillian, AL

Average wind speed in September - Lillian, AL
  • Average wind speed in September: 5.3mph

The windiest months (with the highest average wind speed) are January and March (7.3mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).

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Average humidity in September
Lillian, AL

Average humidity in September - Lillian, AL
  • Average humidity in September: 75%

The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in September
Lillian, AL

Average rainfall in September - Lillian, AL
  • Average rainfall in September: 3.35"

The wettest month (with the highest rainfall) is July (4.53").
The driest month (with the least rainfall) is May (1.97").

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Average rainfall days in September
Lillian, AL

Average rainfall days in September - Lillian, AL
  • Average rainfall days in September: 17.7 days

The month with the highest number of rainy days is July (23 days).
The month with the least rainy days is November (8.1 days).

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Average snowfall in September
Lillian, AL

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

The month with the highest snowfall is January (0.16").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").

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Average snowfall days in September
Lillian, AL

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

The month with the highest number of snowfall days is January (0.1 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October, November and December (0 days).

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

Average daylight in September / Average sunshine in September - Lillian, AL
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).

  • Average sunshine in September: 9h and 2min

The months with the most sunshine are May and June (Average sunshine: 10h and 48min).
The months with the least sunshine are February and December (Average sunshine: 5h and 12min).

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Average sunshine days in September
Lillian, AL

Average sunshine days in September - Lillian, AL
  • Average sunshine days in September: 9.7 days

The month with the most sunshine days is November (19.8 days).
The month with the least sunshine days is July (5.4 days).

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Average UV index in September
Lillian, AL

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

The months with the highest UV index are May, June, July and August (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
Lillian, AL

Average cloud cover in September - Lillian, AL
  • Average cloud cover in September: 27

The months with the most cloud cover are February and December (Cloud cover 46).
The month with the least cloud cover is October (Cloud cover 25).

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Average visibility in September
Lillian, AL

Average visibility in September - Lillian, AL
  • Average visibility in September: 6mi

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

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Lillian, Alabama, USA

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