September weather forecast and climate
Gainestown, AL

Weather in September

September, the first month of the autumn, in Gainestown, is also a hot month, with average temperature varying between 68°F (20°C) and 88.5°F (31.4°C).

Temperature

In September, the average high-temperature is practically the same as in August - a still hot 88.5°F (31.4°C). In September, the average low-temperature is 68°F (20°C).

Heat index

The average heat index is estimated at an extremely hot 104.7°F (40.4°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Note that heat index values are valued for light wind and location in the shade. 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', 'felt air temperature', 'feels like', or 'apparent temperature', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. This effect is individual, with diverse people perceiving weather differently for numerous reasons (pregnancy, metabolic differences, wind), and activity. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index 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. Excessive warmth is eliminated from the body by evaporation of sweat. 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. If the body can not disperse the excessive heat and body temperature reaches conditions of hyperthermia, above 99.5°F (37.5°C) to 100.9°F (38.3°C), thermal conditions are potentially life-threatening.

Humidity

The average relative humidity in September is 75%.

Rainfall

In Gainestown, during 16.5 rainfall days, 2.4" (61mm) of precipitation is typically accumulated. Throughout the year, there are 173.9 rainfall days, and 35.63" (905mm) of precipitation is accumulated.

Snowfall

April through November are months without snowfall in Gainestown.

Daylight

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

Sunshine

The average sunshine in Gainestown is 8.8h.

UV index

In Gainestown, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high threat to health from the exposure to the Sun's UV rays for the ordinary person.
Note: The average daily UV index of 6 transform into the following instructions:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the temperature in September in Gainestown?

The average high-temperature, in September, in Gainestown, Alabama, is 88.5°F (31.4°C), while the average low-temperature is 68°F (20°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), that calculates temperature value influenced by the moisture in the air, in September is estimated at 104.7°F (40.4°C).

What is the average humidity in September in Gainestown?

In September, the average relative humidity is 75%.

How many days does it rain in September in Gainestown?

In Gainestown, in September, during 16.5 rainfall days, 2.4" (61mm) of precipitation is typically accumulated.

When it does not snow in Gainestown?

April through November are months without snowfall in Gainestown, Alabama.

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

The average length of the day in September in Gainestown is 12.3h.

How many hours of sunshine does Gainestown have in September?

The average sunshine in September in Gainestown, Alabama, is 8.8h.

What is the UV index reading in September in Gainestown?

In September, the average daily maximum UV index in Gainestown, Alabama, is 6. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to the Sun's UV rays.

Average temperature in September
Gainestown, AL

Average temperature in September - Gainestown, AL
  • Average high temperature in September: 88.5°F

The warmest month (with the highest average high temperature) is July (92.5°F).
The month with the lowest average high temperature is January (56.8°F).

  • Average low temperature in September: 68°F

The month with the highest average low temperature is July (72.5°F).
The coldest month (with the lowest average low temperature) is January (38.8°F).

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Average pressure in September
Gainestown, AL

Average pressure in September - Gainestown, AL
  • Average pressure in September: 29.98"

The month with the highest atmospheric pressure is January (30.16").
The month with the lowest atmospheric pressure is June (29.96").

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Average wind speed in September
Gainestown, AL

Average wind speed in September - Gainestown, AL
  • Average wind speed in September: 4.4mph

The windiest month (with the highest average wind speed) is April (6.1mph).
The calmest months (with the lowest average wind speed) are July and August (4.2mph).

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Average humidity in September
Gainestown, AL

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

The month with the highest relative humidity is December (81%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in September
Gainestown, AL

Average rainfall in September - Gainestown, AL
  • Average rainfall in September: 2.4"

The wettest month (with the highest rainfall) is July (4.41").
The driest month (with the least rainfall) is November (2.05").

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Average rainfall days in September
Gainestown, AL

Average rainfall days in September - Gainestown, AL
  • Average rainfall days in September: 16.5 days

The month with the highest number of rainy days is July (24.7 days).
The month with the least rainy days is November (8 days).

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Average snowfall in September
Gainestown, AL

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

The month with the highest snowfall is January (0.16").
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
Gainestown, AL

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

The month with the highest number of snowfall days is January (0.5 days).
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
Gainestown, AL

Average daylight in September / Average sunshine in September - Gainestown, 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: 10.5h).
The month with the least sunshine is February (Average sunshine: 5h).

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Average sunshine days in September
Gainestown, AL

Average sunshine days in September - Gainestown, AL
  • Average sunshine days in September: 11.5 days

The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is July (4.4 days).

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Average UV index in September
Gainestown, AL

Average UV index in September - Gainestown, 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
Gainestown, AL

Average cloud cover in September - Gainestown, AL
  • Average cloud cover in September: 34

The month with the most cloud cover is December (Cloud cover 51).
The month with the least cloud cover is October (Cloud cover 31).

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Average visibility in September
Gainestown, AL

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

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

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