September weather forecast and climate
Hampden, AL

Weather in September

The first month of the autumn, September, is also a hot month in Hampden, Alabama, with average temperature ranging between min 67.1°F (19.5°C) and max 88°F (31.1°C).

Temperature

In Hampden, the average high-temperature is practically the same as in August - a still tropical 88°F (31.1°C). In September, the average low-temperature is 67.1°F (19.5°C).

Heat index

In September, the average heat index is calculated to be a very hot 101.3°F (38.5°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature', 'feels like', 'real feel', or 'felt air temperature', is a measure of how hot it feels when the actual air humidity is factored in. Additional factors like differences in body mass, height, and shape, wind, clothing, and activity influence one's weather impression. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. 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 Hampden, Alabama, is 72%.

Rainfall

The month with the least rainfall is September when the rain falls for 13.3 days and typically collects 2.01" (51mm) of precipitation.

Snowfall

In Hampden snow does not fall in March through November.

Daylight

In Hampden, the average length of the day is 12.3h.

Sunshine

In Hampden, Alabama, the average sunshine in September is 9.3h.

UV index

In Hampden, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to the Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 6 interpret into the following advice:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. 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 Hampden?

In Hampden, in September, the average high-temperature is 88°F (31.1°C), and the average low-temperature is 67.1°F (19.5°C). In September, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines relative humidity and air temperature, is calculated to be 101.3°F (38.5°C).

What is the average humidity in September in Hampden?

In Hampden, Alabama, the average relative humidity in September is 72%.

What is the driest month in Hampden?

The month with the least rainfall is September when the rain falls for 13.3 days and typically collects 2.01" (51mm) of precipitation.

How much does it rain in Hampden in September?

In Hampden, Alabama, during September, the rain falls for 13.3 days and regularly aggregates up to 2.01" (51mm) of precipitation.

When it does not snow in Hampden?

In Hampden snow does not fall in March through November.

How many hours of daylight does Hampden have in September?

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

How long on average sun shines in September in Hampden?

The average sunshine in September in Hampden is 9.3h.

What is the UV index intensity in September in Hampden?

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

Average temperature in September
Hampden, AL

Average temperature in September - Hampden, AL
  • Average high temperature in September: 88°F

The warmest month (with the highest average high temperature) is July (92.7°F).
The month with the lowest average high temperature is January (55°F).

  • Average low temperature in September: 67.1°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 (38.5°F).

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Average pressure in September
Hampden, AL

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

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
Hampden, AL

Average wind speed in September - Hampden, AL
  • Average wind speed in September: 5mph

The windiest months (with the highest average wind speed) are January, February, March and April (7mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).

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Average humidity in September
Hampden, AL

Average humidity in September - Hampden, AL
  • Average humidity in September: 72%

The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (69%).

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Average rainfall in September
Hampden, AL

Average rainfall in September - Hampden, AL
  • Average rainfall in September: 2.01"

The wettest month (with the highest rainfall) is December (3.5").
The driest month (with the least rainfall) is September (2.01").

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Average rainfall days in September
Hampden, AL

Average rainfall days in September - Hampden, AL
  • Average rainfall days in September: 13.3 days

The month with the highest number of rainy days is July (21.3 days).
The month with the least rainy days is November (8.3 days).

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Average snowfall in September
Hampden, AL

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

Months with the highest snowfall are January and December (0.35").
Months with the least snowfall are March, April, May, June, July, August, September, October and November (0").

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Average snowfall days in September
Hampden, AL

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

The month with the highest number of snowfall days is January (0.8 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
Hampden, AL

Average daylight in September / Average sunshine in September - Hampden, 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: 9.3h

The month with the most sunshine is June (Average sunshine: 10.6h).
The month with the least sunshine is December (Average sunshine: 4.9h).

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Average sunshine days in September
Hampden, AL

Average sunshine days in September - Hampden, AL
  • Average sunshine days in September: 15.2 days

The month with the most sunshine days is October (21.2 days).
The month with the least sunshine days is July (8.3 days).

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Average UV index in September
Hampden, AL

Average UV index in September - Hampden, 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
Hampden, AL

Average cloud cover in September - Hampden, AL
  • Average cloud cover in September: 29

Months with the most cloud cover are February and December (Cloud cover 47).
Months with the least cloud cover are September and October (Cloud cover 29).

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Average visibility in September
Hampden, AL

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

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

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