September weather forecast and climate
Joy, AL

Weather in September

September, the first month of the autumn, in Joy, is still a warm month, with average temperature fluctuating between 63.7°F (17.6°C) and 82.8°F (28.2°C).

Temperature

In Joy, the average high-temperature is almost the same as in August - a warm 82.8°F (28.2°C). In September, the average low-temperature is 63.7°F (17.6°C).

Heat index

In September, the average heat index is evaluated at a hot 89.2°F (31.8°C). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With 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 'felt air temperature', 'apparent temperature', 'real feel', or 'feels like', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. Additional factors like wind, clothing, metabolic differences, and activity influence one's weather impression. 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. 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.

Humidity

In September, the average relative humidity is 75%.

Rainfall

In Joy, during 14.8 rainfall days, 2.64" (67mm) of precipitation is typically accumulated. Throughout the year, there are 177.4 rainfall days, and 41.42" (1052mm) of precipitation is accumulated.

Snowfall

April through October are months without snowfall in Joy.

Daylight

In September, the average length of the day is 12.4h.

Sunshine

In September, the average sunshine is 8.6h.

UV index

In Joy, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to the Sun's UV rays for average individuals.
Note: The daily maximum UV index of 5 interpret into the following advice:
Take precautions - Protection against sun damage is advised. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the temperature in September in Joy?

In Joy, in September, the average high-temperature is 82.8°F (28.2°C), and the average low-temperature is 63.7°F (17.6°C). In September, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is evaluated at 89.2°F (31.8°C).

What is the average humidity in September in Joy?

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

How much does it rain in Joy in September?

In Joy, Alabama, during September, the rain falls for 14.8 days and regularly aggregates up to 2.64" (67mm) of precipitation.

When it does not snow in Joy?

In Joy snow does not fall in April through October.

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

In Joy, the average length of the day in September is 12.4h.

How many hours of sunshine does Joy have in September?

The average sunshine in September in Joy is 8.6h.

What is the UV index reading in September in Joy?

In September, the average daily maximum UV index in Joy, Alabama, is 5. A UV Index of 3 to 5 symbolizes a medium hazard to health from unprotected exposure to the UV radiation.

Average temperature in September
Joy, AL

Average temperature in September - Joy, AL
  • Average high temperature in September: 82.8°F

The warmest month (with the highest average high temperature) is July (88.7°F).
The month with the lowest average high temperature is January (48.9°F).

  • Average low temperature in September: 63.7°F

The month with the highest average low temperature is July (69.3°F).
The coldest month (with the lowest average low temperature) is January (34°F).

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Average pressure in September
Joy, AL

Average pressure in September - Joy, AL
  • Average pressure in September: 30.02"

The month with the highest atmospheric pressure is January (30.17").
The month with the lowest atmospheric pressure is June (29.98").

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Average wind speed in September
Joy, AL

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

The windiest months (with the highest average wind speed) are January, February and March (7.8mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).

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Average humidity in September
Joy, AL

Average humidity in September - Joy, 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 (73%).

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Average rainfall in September
Joy, AL

Average rainfall in September - Joy, AL
  • Average rainfall in September: 2.64"

The wettest month (with the highest rainfall) is December (4.21").
The driest month (with the least rainfall) is October (2.32").

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Average rainfall days in September
Joy, AL

Average rainfall days in September - Joy, AL
  • Average rainfall days in September: 14.8 days

The month with the highest number of rainy days is July (20.9 days).
The month with the least rainy days is November (8.7 days).

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Average snowfall in September
Joy, AL

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

The month with the highest snowfall is January (0.63").
Months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in September
Joy, AL

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

The month with the highest number of snowfall days is February (1.4 days).
Months with the least snowfall days are May, June, July, August, September and October (0 days).

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

Average daylight in September / Average sunshine in September - Joy, AL
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.4h).
The month with the shortest days is December (Average daylight: 9.9h).

  • Average sunshine in September: 8.6h

The month with the most sunshine is June (Average sunshine: 10.4h).
The month with the least sunshine is February (Average sunshine: 4.6h).

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Average sunshine days in September
Joy, AL

Average sunshine days in September - Joy, AL
  • Average sunshine days in September: 13.2 days

The month with the most sunshine days is November (20 days).
The month with the least sunshine days is July (8.4 days).

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Average UV index in September
Joy, AL

Average UV index in September - Joy, AL
  • Average UV index in September: 5

Months with the highest UV index are May, June, July and August (UV index 6).
Months with the lowest UV index are January and December (UV index 2).

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Average cloud cover in September
Joy, AL

Average cloud cover in September - Joy, AL
  • Average cloud cover in September: 31

The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is September (Cloud cover 31).

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Average visibility in September
Joy, AL

Average visibility in September - Joy, 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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