September weather forecast and climate
Grayton, AL

Weather in September

The first month of the autumn, September, is also a moderately hot month in Grayton, Alabama, with average temperature ranging between min 64°F (17.8°C) and max 84°F (28.9°C).

Temperature

In September, the average high-temperature is almost the same as in August - a warm 84°F (28.9°C). The average low-temperature, in September, is 64°F (17.8°C).

Heat index

In September, the average heat index is calculated to a tropical 91.9°F (33.3°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', 'real feel', '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 individual, with diverse people perceiving weather differently for numerous reasons (clothing, wind, differences in body mass, height, and shape), 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 especially crucial for babies and toddlers. 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.

Humidity

The average relative humidity in September is 74%.

Rainfall

In Grayton, in September, during 10.8 rainfall days, 1.22" (31mm) of precipitation is typically accumulated. Throughout the year, in Grayton, there are 147.2 rainfall days, and 20.12" (511mm) of precipitation is accumulated.

Snowfall

In Grayton snow does not fall in April through November.

Daylight

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

Sunshine

In Grayton, the average sunshine is 8.7h.

UV index

In Grayton, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from the exposure to the Sun's UV radiation for the ordinary person.
Note: The average daily UV index of 5 transform into the following instructions:
Take precautions - Protection against the skin and eye damage is obliged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. 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 Grayton?

In September, in Grayton, Alabama, the average high-temperature is 84°F (28.9°C), and the average low-temperature is 64°F (17.8°C). In September, the average heat index (a.k.a. 'real feel', 'feels like'), that calculates temperature value influenced by the moisture in the air, is calculated to 91.9°F (33.3°C).

What is the average humidity in September in Grayton?

In Grayton, Alabama, the average relative humidity in September is 74%.

How much does it rain in Grayton in September?

In September, the rain falls for 10.8 days. Throughout September, 1.22" (31mm) of precipitation is accumulated.

When it does not snow in Grayton?

April through November are months without snowfall in Grayton.

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

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

How long on average sun shines in September in Grayton?

In Grayton, the average sunshine in September is 8.7h.

What is the UV index intensity in September in Grayton?

In September, the average daily maximum UV index in Grayton, Alabama, is 5. A UV Index reading of 3 to 5 represents a moderate vulnerability from the exposure to the Sun's UV rays.

Average temperature in September
Grayton, AL

Average temperature in September - Grayton, AL
  • Average high temperature in September: 84°F

The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (50.5°F).

  • Average low temperature in September: 64°F

The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (34.3°F).

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Average pressure in September
Grayton, AL

Average pressure in September - Grayton, 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
Grayton, AL

Average wind speed in September - Grayton, AL
  • Average wind speed in September: 4.5mph

The windiest months (with the highest average wind speed) are January and February (7.3mph).
The calmest month (with the lowest average wind speed) is August (4mph).

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Average humidity in September
Grayton, AL

Average humidity in September - Grayton, AL
  • Average humidity in September: 74%

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
Grayton, AL

Average rainfall in September - Grayton, AL
  • Average rainfall in September: 1.22"

The wettest month (with the highest rainfall) is August (2.13").
The driest month (with the least rainfall) is October (0.98").

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Average rainfall days in September
Grayton, AL

Average rainfall days in September - Grayton, AL
  • Average rainfall days in September: 10.8 days

The month with the highest number of rainy days is July (20.2 days).
The month with the least rainy days is November (7.7 days).

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Average snowfall in September
Grayton, AL

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

The month with the highest snowfall is January (0.51").
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
Grayton, AL

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

The month with the highest number of snowfall days is February (1.3 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
Grayton, AL

Average daylight in September / Average sunshine in September - Grayton, 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: 8.7h

The month with the most sunshine is June (Average sunshine: 10.7h).
The month with the least sunshine is February (Average sunshine: 4.9h).

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Average sunshine days in September
Grayton, AL

Average sunshine days in September - Grayton, AL
  • Average sunshine days in September: 16.8 days

The month with the most sunshine days is October (21.3 days).
The month with the least sunshine days is July (8.6 days).

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Average UV index in September
Grayton, AL

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

The month with the highest UV index is June (UV index 7).
Months with the lowest UV index are January, February, November and December (UV index 3).

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Average cloud cover in September
Grayton, AL

Average cloud cover in September - Grayton, AL
  • Average cloud cover in September: 30

Months with the most cloud cover are February and December (Cloud cover 47).
Months with the least cloud cover are June and September (Cloud cover 30).

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Average visibility in September
Grayton, AL

Average visibility in September - Grayton, 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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