September weather forecast
Holly Springs, GA

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Weather in September

September, the first month of the autumn in Holly Springs, is also a moderately hot month, with temperature in the range of an average low of 63.3°F (17.4°C) and an average high of 82.6°F (28.1°C).

Temperature

The transition from August to September brings an average high-temperature of a warm 82.6°F (28.1°C), barely different from August's 87.8°F (31°C). During the September nights, an average temperature of 63.3°F (17.4°C) is observed.

Heat index

For most parts of September, the heat index is evaluated at a tropical 87.8°F (31°C). Long-standing exposure coupled with ongoing activity could result in exhaustion, possibly causing heat cramps.
Note that heat index values are valued for light wind and location in the shade. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'feels like' or 'felt air temperature', unifies temperature and humidity readings to offer a comprehensive feel of warmth. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical 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's vital to remain hydrated, particularly during prolonged physical activities.

Humidity

In September, the average relative humidity is 73%.

Rainfall

In Holly Springs, in September, during 12.8 rainfall days, 2.64" (67mm) of precipitation is typically accumulated. In Holly Springs, Georgia, during the entire year, the rain falls for 178.9 days and collects up to 42.95" (1091mm) of precipitation.

Snowfall

In Holly Springs, snow does not fall in April through October.

Daylight

In Holly Springs, the average length of the day in September is 12h and 22min.
On the first day of September in Holly Springs, sunrise is at 7:11 am and sunset at 8:03 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 7:23 pm EDT.

Sunshine

The average sunshine in September in Holly Springs is 8.5h.

UV index

The average daily maximum UV index in September in Holly Springs is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum daily UV index of 5 in September interprets into the following recommendations:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
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Frequently asked questions

How hot does it get in Holly Springs in September?

The average high-temperature, in September, in Holly Springs, is 82.6°F (28.1°C), while the average low-temperature is 63.3°F (17.4°C). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, in September is evaluated at 87.8°F (31°C).

What is the average humidity in September in Holly Springs?

In September, the average relative humidity in Holly Springs is 73%.

How many days does it rain in September in Holly Springs?

In Holly Springs, in September, it is raining for 12.8 days, with typically 2.64" (67mm) of accumulated precipitation.

When it does not snow in Holly Springs?

In Holly Springs, snow does not fall in April through October.

How many hours of daylight does Holly Springs have in September?

In September, the average day length in Holly Springs is 12h and 22min.

When is the sunrise / sunset in September in Holly Springs?

On the first day of September, sunrise is at 7:11 am and sunset at 8:03 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 7:23 pm EDT.

How long on average sun shines in September in Holly Springs?

The average sunshine duration in September in Holly Springs, Georgia, is 8.5h.

What is the UV index intensity in September in Holly Springs?

In Holly Springs, Georgia, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate health threat from exposure to Sun's UV rays.
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
Holly Springs, GA

Average temperature in September - Holly Springs, GA
  • Average high temperature in September: 82.6°F

The warmest month (with the highest average high temperature) is July (89.1°F).
The month with the lowest average high temperature is January (48.2°F).

  • Average low temperature in September: 63.3°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 (32.9°F).

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Average pressure in September
Holly Springs, GA

Average pressure in September - Holly Springs, GA
  • Average pressure in September: 30.03"Hg

The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).

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Average wind speed in September
Holly Springs, GA

Average wind speed in September - Holly Springs, GA
  • Average wind speed in September: 4.7mph

The windiest month (with the highest average wind speed) is January (7.6mph).
The calmest months (with the lowest average wind speed) are July and August (4.3mph).

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Average humidity in September
Holly Springs, GA

Average humidity in September - Holly Springs, GA
  • Average humidity in September: 73%

The month with the highest relative humidity is December (79%).
The month with the lowest relative humidity is October (72%).

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Average rainfall in September
Holly Springs, GA

Average rainfall in September - Holly Springs, GA
  • Average rainfall in September: 2.64"

The wettest months (with the highest rainfall) are May and August (4.25").
The driest month (with the least rainfall) is October (2.52").

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Average rainfall days in September
Holly Springs, GA

Average rainfall days in September - Holly Springs, GA
  • Average rainfall days in September: 12.8 days

The month with the highest number of rainy days is June (19.1 days).
The month with the least rainy days is November (9.9 days).

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Average snowfall in September
Holly Springs, GA

Average snowfall in September - Holly Springs, GA
  • Average snowfall in September: 0"

The month with the highest snowfall is January (1.02").
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
Holly Springs, GA

Average snowfall days in September - Holly Springs, GA
  • Average snowfall days in September: 0 days

The months with the highest number of snowfall days are January and February (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
Holly Springs, GA

Average daylight in September / Average sunshine in September - Holly Springs, GA
  • 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 3min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).

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Average sunshine days in September
Holly Springs, GA

Average sunshine days in September - Holly Springs, GA
  • Average sunshine days in September: 15.5 days

The month with the most sunshine days is October (19.4 days).
The month with the least sunshine days is June (9 days).

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Average UV index in September
Holly Springs, GA

Average UV index in September - Holly Springs, GA
  • 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
Holly Springs, GA

Average cloud cover in September - Holly Springs, GA
  • Average cloud cover in September: 32

The months with the most cloud cover are February and December (Cloud cover 48).
The months with the least cloud cover are June and July (Cloud cover 31).

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Average visibility in September
Holly Springs, GA

Average visibility in September - Holly Springs, GA
  • 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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Holly Springs, Georgia, USA

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