September weather forecast and climate
Grove Park, AL

Weather in September

September, the first month of the autumn, in Grove Park, is also a moderately hot month, with temperature in the range of an average high of 85.1°F (29.5°C) and an average low of 66°F (18.9°C).

Temperature

In Grove Park, the average high-temperature is essentially the same as in August - a moderately hot 85.1°F (29.5°C). In September, the average low-temperature is 66°F (18.9°C).

Heat index

The average heat index is appraised at a tropical 93.7°F (34.3°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. 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 'felt air temperature', 'feels like', 'real feel', or 'apparent temperature', is a measure of how hot it feels when the actual air humidity is factored in. Additional factors like wind, metabolic differences, differences in body mass, height, and shape, 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 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 72%.

Rainfall

In Grove Park, during 11.8 rainfall days, 1.06" (27mm) of precipitation is typically accumulated. Throughout the year, there are 146.7 rainfall days, and 18.94" (481mm) of precipitation is accumulated.

Snowfall

April through November are months without snowfall in Grove Park, Alabama.

Daylight

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

Sunshine

In Grove Park, the average sunshine is 8.9h.

UV index

In September, the average daily maximum UV index in Grove Park is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to the UV radiation for ordinary individuals.
Note: The daily maximum UV index of 5 interpret into the following advice:
Take precautions - Protection against sunburn is recommended. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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 Grove Park?

In Grove Park, in September, the average high-temperature is 85.1°F (29.5°C), and the average low-temperature is 66°F (18.9°C). The average heat index (a.k.a. 'real feel', 'feels like'), that combines relative humidity and air temperature, in September is calculated to 93.7°F (34.3°C).

What is the average humidity in September in Grove Park?

The average relative humidity in September is 72%.

How many days does it rain in September in Grove Park?

In Grove Park, during September, the rain falls for 11.8 days and regularly aggregates up to 1.06" (27mm) of precipitation.

When it does not snow in Grove Park?

April through November are months without snowfall.

How many hours of daylight does Grove Park have in September?

The average length of the day in September in Grove Park is 12.4h.

How long on average sun shines in September in Grove Park?

In September, the average sunshine is 8.9h.

How high is the UV index in September in Grove Park?

The average daily maximum UV index in September in Grove Park, Alabama, is 5. A UV Index value of 3 to 5 symbolizes a moderate health threat from unprotected exposure to the UV radiation.

Average temperature in September
Grove Park, AL

Average temperature in September - Grove Park, AL
  • Average high temperature in September: 85.1°F

The warmest month (with the highest average high temperature) is July (90.9°F).
The month with the lowest average high temperature is January (51.3°F).

  • Average low temperature in September: 66°F

The month with the highest average low temperature is July (71.4°F).
The coldest month (with the lowest average low temperature) is January (36°F).

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Average pressure in September
Grove Park, AL

Average pressure in September - Grove Park, AL
  • Average pressure in September: 30.01"

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

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Average wind speed in September
Grove Park, AL

Average wind speed in September - Grove Park, AL
  • Average wind speed in September: 4.9mph

The windiest months (with the highest average wind speed) are February and March (7.3mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).

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Average humidity in September
Grove Park, AL

Average humidity in September - Grove Park, 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 (70%).

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Average rainfall in September
Grove Park, AL

Average rainfall in September - Grove Park, AL
  • Average rainfall in September: 1.06"

The wettest month (with the highest rainfall) is August (2.24").
The driest month (with the least rainfall) is October (1.02").

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Average rainfall days in September
Grove Park, AL

Average rainfall days in September - Grove Park, AL
  • Average rainfall days in September: 11.8 days

The month with the highest number of rainy days is July (18.9 days).
The month with the least rainy days is November (7.3 days).

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Average snowfall in September
Grove Park, AL

Average snowfall in September - Grove Park, AL
  • Average snowfall in September: 0"

The month with the highest snowfall is January (0.24").
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
Grove Park, AL

Average snowfall days in September - Grove Park, AL
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (1 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
Grove Park, AL

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

The month with the longest days is June (Average daylight: 14.3h).
The month with the shortest days is December (Average daylight: 10h).

  • Average sunshine in September: 8.9h

Months with the most sunshine are June and July (Average sunshine: 10.6h).
The month with the least sunshine is February (Average sunshine: 4.8h).

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Average sunshine days in September
Grove Park, AL

Average sunshine days in September - Grove Park, AL
  • Average sunshine days in September: 15.5 days

The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is July (9.4 days).

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Average UV index in September
Grove Park, AL

Average UV index in September - Grove Park, AL
  • Average UV index in September: 5

Months with the highest UV index are July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).

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Average cloud cover in September
Grove Park, AL

Average cloud cover in September - Grove Park, AL
  • Average cloud cover in September: 30

The month with the most cloud cover is February (Cloud cover 48).
Months with the least cloud cover are June, September and October (Cloud cover 30).

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Average visibility in September
Grove Park, AL

Average visibility in September - Grove Park, 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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