September weather forecast
Union Grove, AL

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Union Grove, Alabama, with an average temperature varying between 83.1°F (28.4°C) and 63.1°F (17.3°C).

Temperature

The arrival of September brings an average high-temperature of a warm 83.1°F (28.4°C), closely following the temperature pattern of August. Union Grove, during September, witnesses an average low-temperature of 63.1°F (17.3°C).

Heat index

In September, the average heat index is calculated to be a tropical 89.6°F (32°C). Staying active during long-term exposure might result in a state of exhaustion and cause heat cramps.
In terms of the heat index, values are set with light wind and shade conditions in mind. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.

Humidity

In September, the average relative humidity in Union Grove is 75%.

Rainfall

September is the month with the least rainfall. Rain falls for 13.6 days and accumulates 2.32" (59mm) of precipitation.

Snowfall

In Union Grove, snow does not fall in April through October.

Daylight

In Union Grove, the average length of the day in September is 12h and 23min.
On the first day of the month, sunrise is at 6:19 am and sunset at 7:11 pm. On the last day of September, in Union Grove, Alabama, sunrise is at 6:40 am and sunset at 6:30 pm CDT.

Sunshine

In September, the average sunshine is 8.6h.

UV index

In Union Grove, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: A daily high UV index of 5 in September leads to these guidelines:
Take necessary precautions - Suggestions to elude sunburn are provided. It's recommended to limit sun exposure when its radiation is at its peak during midday. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
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Frequently asked questions

How hot is September in Union Grove?

In Union Grove, 83.1°F (28.4°C) is the average high-temperature and 63.1°F (17.3°C) is the average low-temperature during September. The average heat index (a.k.a. 'apparent temperature', 'feels like'), which factors the actual air temperature with the relative humidity, in September is calculated to be 89.6°F (32°C).

What is the average humidity in September in Union Grove?

In September, the average relative humidity in Union Grove is 75%.

What is the driest month in Union Grove?

September is the month with the least rainfall. Rain falls for 13.6 days and accumulates 2.32" (59mm) of precipitation.

How much does it rain in Union Grove in September?

In September, in Union Grove, Alabama, the rain falls for 13.6 days. Throughout September, 2.32" (59mm) of precipitation is accumulated.

When it does not snow in Union Grove?

April through October are months without snowfall in Union Grove, Alabama.

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

The average day length in September in Union Grove, Alabama, is 12h and 23min.

What time are sunrise and sunset in September in Union Grove?

In September, on the first day of the month, sunrise is at 6:19 am and sunset at 7:11 pm. On the last day of the month, sunrise is at 6:40 am and sunset at 6:30 pm CDT.

How many hours of sunshine does Union Grove have in September?

In September, the average sunshine duration in Union Grove, Alabama, is 8.6h.

What is the UV index intensity in September in Union Grove?

In Union Grove, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium health risk from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Union Grove, AL

Average temperature in September - Union Grove, AL
  • Average high temperature in September: 83.1°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 (48.4°F).

  • Average low temperature in September: 63.1°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (33.4°F).

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Average pressure in September
Union Grove, AL

Average pressure in September - Union Grove, AL
  • Average pressure in September: 30.02"Hg

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

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Average wind speed in September
Union Grove, AL

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

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
Union Grove, AL

Average humidity in September - Union Grove, 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
Union Grove, AL

Average rainfall in September - Union Grove, AL
  • Average rainfall in September: 2.32"

The wettest month (with the highest rainfall) is April (4.25").
The driest month (with the least rainfall) is September (2.32").

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Average rainfall days in September
Union Grove, AL

Average rainfall days in September - Union Grove, AL
  • Average rainfall days in September: 13.6 days

The month with the highest number of rainy days is July (19.7 days).
The month with the least rainy days is November (9.5 days).

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Average snowfall in September
Union Grove, AL

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

The month with the highest snowfall is January (0.83").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in September
Union Grove, AL

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

The month with the highest number of snowfall days is January (1.8 days).
The 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
Union Grove, AL

Average daylight in September / Average sunshine in September - Union Grove, AL
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in September: 8h and 4min

The months with the most sunshine are June and July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

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Average sunshine days in September
Union Grove, AL

Average sunshine days in September - Union Grove, AL
  • Average sunshine days in September: 14.4 days

The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is July (9.6 days).

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Average UV index in September
Union Grove, AL

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

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

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Average cloud cover in September
Union Grove, AL

Average cloud cover in September - Union Grove, AL
  • Average cloud cover in September: 31

The month with the most cloud cover is February (Cloud cover 51).
The months with the least cloud cover are June and September (Cloud cover 31).

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Average visibility in September
Union Grove, AL

Average visibility in September - Union Grove, AL
  • Average visibility in September: 6mi

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

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Union Grove, Alabama, USA

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